Fits 2011-2023 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks.

The Timbren SES (Suspension Enhancement System) provides a progressive spring rate to manage heavy tongue weights and payload without compromising empty ride quality. This kit uses high-capacity hollow rubber springs designed to eliminate rear-end sag, reduce body roll, and improve overall vehicle stability while towing or hauling. Unlike air spring systems, these helper springs require no maintenance, air lines, or manual pressure monitoring.

Engineered as a direct replacement for the factory bump stops, the GMRCK25DM1.5 bolts into existing mounting points for a straightforward installation. When the vehicle is unloaded, the rubber springs maintain a gap from the axle to preserve the factory ride; under load, they engage to provide immediate support and prevent bottoming out.

• Replaces OE bump stops to improve suspension response and stability
• Prevents suspension sag and reduces sway during heavy hauling or towing
• Maintenance-free hollow rubber springs with a progressive spring rate
• Easy bolt-on installation using basic hand tools; no drilling required
• Durable construction resistant to road salt and extreme temperatures
• Manufacturer Part Number: GMRCK25DM1.5

Fits 2011-2023 Chevrolet Silverado and GMC Sierra 2500/3500 trucks.

The Timbren SES (Suspension Enhancement System) GMRCK25DM1 is engineered to eliminate rear-end sag, reduce body roll, and improve overall vehicle stability when towing heavy trailers or hauling maximum bed loads. These hollow rubber springs provide a progressive spring rate, meaning the more weight that is applied, the harder they work to keep the vehicle level. Unlike air bag systems, this setup requires no air lines, no compressors, and no manual pressure monitoring, making it a reliable, maintenance-free solution for heavy-duty work.

This kit replaces the factory bump stops, bolting directly to the frame. When the vehicle is unloaded, the Aeon springs do not contact the axle, preserving factory ride quality; once a load is added, they engage to provide immediate support and prevent bottoming out.

• Eliminates suspension sag and improves headlight aim while towing
• Reduces trailer sway and body roll for safer highway handling
• Simple bolt-on installation into factory mounting points; no drilling required
• Maintenance-free hollow rubber spring construction
• Manufacturer Part Number: GMRCK25DM1

Includes two Aeon hollow rubber springs, vehicle-specific laser-cut mounting brackets, and all necessary Grade 8 installation hardware.

Fits select 2000-2020 Chevrolet Avalanche 2500, Suburban 1500/2500/3500 HD, and GMC Yukon XL 2500 (Base, LS, LT, LTZ, Premier, SLE, SLT, and Denali).

The Timbren SES (Suspension Enhancement System) is a maintenance-free solution designed to eliminate vehicle squat, sag, and trailer sway under heavy loads. This kit replaces the factory bump stops with Aeon® hollow rubber springs, providing a progressive spring rate that automatically adjusts to load weight. By absorbing road shocks and stabilizing the chassis, these springs improve overall handling and safety when towing trailers or hauling heavy cargo.

• Eliminate Squat & Sag: Keeps your vehicle level under load to maintain proper headlight aim and steering geometry.
• Maintenance-Free: Unlike air bags, these rubber cushions require no air lines, fittings, or monitoring.
• No-Drill Installation: Bolts directly to factory mounting points using basic hand tools.
• Progressive Spring Rate: Soft unloaded ride quality that firms up as load increases to prevent bottoming out.
• Durability: High-performance rubber springs designed for a lifetime of heavy-duty use.
• MPN: GMRSB4S
• Includes: Two Aeon® hollow rubber springs, mounting brackets, and all necessary Grade 8 hardware.

Fits 2015-2025 Ford F-150 trucks, including King Ranch, Lariat, Limited, Platinum, Raptor, and Tremor models.

Timbren Active Off-Road Bumpstops (ABSFR1504E) provide off-road enthusiasts with significantly greater control over their vehicle's suspension travel. By utilizing a progressive spring rate, these units replace the harsh, abrupt impact of factory stops with a smooth, predictable absorption of axle energy. This prevents hard bottoming-out while maintaining full suspension travel, even in demanding terrain.

Constructed from high-grade natural rubber, these bumpstops are engineered to endure the rigors of trail use better than standard OE components. The progressive damping allows for seamless axle engagement and disengagement, protecting your chassis and improving ride quality during high-articulation maneuvers.

• Direct replacement for rear OEM bump stops
• Progressive-rate natural rubber construction for smooth energy absorption
• Maintains full suspension travel while cushioning road shock
• Simple bolt-on installation requires no specialized tools
• Manufacturer Part Number: ABSFR1504E
• Includes Lifetime Warranty and 100-Day Money Back Guarantee

Fits 2022-2026 Toyota Tundra (all models including SR, SR5, Limited, Platinum, 1794 Edition, TRD Pro, and Capstone).

Standard Timbren SES kits are engineered for factory ride height, maintaining a 1-inch gap between the Aeon® rubber spring and the suspension when the vehicle is unloaded. When a leveling kit, body lift, or suspension lift is installed, this gap increases, preventing the SES kit from engaging properly under load. The Timbren SPCRTORTNDR spacer kit eliminates this excessive clearance, ensuring your Aeon® springs provide immediate support and stability during towing or hauling.

This kit is fully adjustable, allowing you to fine-tune the engagement height based on your specific lift height. It is compatible with Timbren SES rear kits TORTNDR and TORTTNDR.

• Re-establishes correct ride height for lifted 2022-2026 Tundra applications
• Includes (2) 1-inch and (2) 1/2-inch spacers for modular height adjustment
• Capable of adjusting ride height for lifts up to 7.5 inches
• Includes all necessary zinc-plated mounting hardware
• Manufacturer Part Number: SPCRTORTNDR
• Limited Lifetime Warranty

Fits select 2005-2026 Nissan Frontier, Nissan Titan, Toyota Tacoma, and Suzuki Equator.

The Timbren SES (Suspension Enhancement System) TORTUN4L is engineered to eliminate vehicle squat and sagging under heavy loads. These high-performance hollow rubber springs replace the factory bump stops, providing a progressive spring rate that automatically adjusts to uneven loads and road conditions. This system significantly improves handling and stability by reducing trailer sway and suspension settling without the complexity of traditional air bags.

Designed for long-term reliability, this kit is completely maintenance-free with no air lines to leak, gauges to monitor, or compressors to fail. The bolt-on design allows for a straightforward installation using basic hand tools, requiring no drilling or vehicle modifications. Whether you are hauling heavy equipment or towing a trailer, the SES system ensures a level ride and enhanced safety.

• Eliminates Sag: Keeps the vehicle level and prevents bottoming out under heavy payloads or tongue weight.
• Cushions Road Shock: Absorbs bumps and vibrations to improve ride quality and protect your cargo.
• Maintenance-Free: No air lines or fittings; designed for a "fit it and forget it" experience.
• Easy Installation: Direct bolt-on design requires no drilling or specialized tools.
• Manufacturer Part Number: TORTUN4L
• Included Hardware: Laser-cut steel brackets, Aeon hollow rubber springs, and all necessary mounting hardware.
• Warranty: Lifetime manufacturer warranty.

Fits select 2000-2024 Nissan Titan, Toyota Tacoma, and Toyota Tundra models.

The Timbren Suspension Enhancement System (SES) is engineered to eliminate vehicle squat and sagging under heavy loads. This TORTUN4 kit replaces the factory bump stops with high-performance hollow rubber cushions that provide a progressive spring rate. These cushions automatically adjust to uneven loads or road conditions by absorbing road shocks and increasing stability to reduce trailer sway.

Built for durability and ease of use, this maintenance-free system requires no air lines, fittings, or compressors, eliminating the risk of leaks common with traditional air bags. The bolt-on design utilizes factory mounting points for a straightforward installation that typically requires only basic hand tools and no drilling.

• Eliminates rear-end sag and squatting under load
• Improves overall handling and trailer stability
• Maintenance-free design with no air lines or leaks
• Progressive rate rubber springs cushion road shocks
• Simple bolt-on installation with no drilling required
• Manufacturer Part Number: TORTUN4
• Limited Lifetime Warranty

Fits select 2005-2023 Toyota Tacoma models including Base, Pre Runner, X-Runner, SR, SR5, TRD Off-Road, TRD Pro, TRD Sport, Limited, and Trail.

The Timbren Suspension Enhancement System (SES) is engineered to eliminate vehicle squat, sagging, and trailer sway under heavy loads. These high-performance rubber springs provide a progressive spring rate, automatically adjusting to uneven loads and road conditions to maintain a level vehicle profile. Unlike air bag systems, the SES design is completely maintenance-free, requiring no airlines, fittings, or pressure monitoring.

Installation is straightforward and requires no drilling or routing of lines. The system bolts directly to factory mounting points using basic hand tools, providing a reliable solution for towing or hauling that will not leak or fail over time.

• Eliminates rear-end sag and improves vehicle handling under load
• Cushions road shocks and reduces trailer sway
• Maintenance-free design with no airlines or fittings
• Simple bolt-on installation; no drilling required
• Durable, high-performance rubber spring technology
• Includes a manufacturer lifetime warranty
• Manufacturer Part Number: TORTTNL

Fits 2022-2026 Toyota Tundra and 2024-2026 Toyota Tacoma across multiple trims including TRD Pro, TRD Off-Road, SR5, and Limited.

The Timbren SES (Suspension Enhancement System) is a high-performance alternative to air bags, designed to eliminate rear-end sag and improve vehicle stability under load. This kit (MPN: TORTTNDR) features hollow rubber springs that deliver a progressive spring rate: the more weight applied, the more they resist compression to keep your vehicle level. This prevents front-end lift, ensuring your steering remains responsive and your headlights stay pointed at the road for safer towing and hauling.

• Eliminates vehicle squatting, sagging, and body roll
• Cushions road shocks for improved ride quality when loaded or empty
• Constructed with laser-cut steel mounting brackets for a precise fit
• Durable black powder-coated finish for corrosion resistance
• Progressive rate hollow rubber springs for automatic load adjustment
• No-maintenance design with simple bolt-on installation
• Manufacturer Lifetime Warranty included

Fits select 2000-2023 Toyota Tundra and Tacoma models across all trims including SR5, Limited, and TRD Pro.

The Timbren SES (Suspension Enhancement System) TORTTN is designed to eliminate vehicle squat and trailer sway by providing progressive support to your rear suspension. Unlike air bags, these Aeon rubber springs are maintenance-free, requiring no air lines, fittings, or monitoring. They provide a softer ride when empty and automatically adjust to handle heavy loads or uneven road conditions, ensuring your truck remains level and stable while towing or hauling.

• Eliminates vehicle squatting, sagging, and body roll
• Maintenance-free design with no air lines or leaks to manage
• Proprietary Aeon rubber springs absorb road shocks and improve handling
• Easy bolt-on installation using basic hand tools; no drilling or routing required
• Replaces factory bump stops for a secure, high-performance fit
• Manufacturer Part Number: TORTTN
• Includes all necessary mounting hardware and instructions
• Limited Lifetime Warranty

Fits 2022-2026 Toyota Tundra models including SR, SR5, Limited, Platinum, 1794 Edition, TRD Pro, and Capstone.

The Timbren SES (Suspension Enhancement System) TORTNDR is engineered to eliminate rear-end sag and improve vehicle stability when towing or hauling heavy loads. By utilizing hollow rubber springs with a progressive spring rate, this system automatically adjusts to the weight in the bed or on the hitch, ensuring the vehicle remains level. Maintaining a level ride height is critical for preserving front-tire traction, proper steering geometry, and correct headlight alignment.

Each kit features laser-cut, powder-coated steel brackets for a precise fit and long-term corrosion resistance. The hollow rubber springs act as a maintenance-free alternative to air bags, cushioning road shocks and significantly reducing body roll and sway during cornering or in high winds. Whether the truck is empty or fully loaded, these springs help provide a more controlled and comfortable ride.

• Eliminates vehicle squat and sagging under heavy loads
• Progressive spring rate hollow rubber springs for automatic load leveling
• Laser-cut and powder-coated steel mounting hardware for maximum durability
• Improves steering control and reduces body roll/sway
• Simple bolt-on installation replaces factory bump stops
• Manufacturer Part Number: TORTNDR
• Includes manufacturer's lifetime warranty

Fits select 1979-2004 Toyota 4Runner, Pickup, T100, and Tacoma.

The Timbren Suspension Enhancement System (SES) provides a maintenance-free solution for hauling heavy loads and towing trailers. Utilizing high-performance hollow rubber springs, the TORTAC4A kit replaces factory bump stops to eliminate rear-end squat and sag. These cushions automatically adjust to uneven loads and road conditions, significantly reducing trailer sway while improving overall handling and stability.

Designed for reliability and longevity, this system requires no air lines, fittings, or compressors, eliminating the risk of leaks common with traditional air suspension. The bolt-on design ensures a straightforward installation using basic hand tools, typically requiring no drilling or routing of components.

• Eliminates vehicle squatting and sagging under load
• Cushions road shocks and improves ride quality
• Reduces trailer sway and improves towing stability
• Maintenance-free design with no air lines or fittings
• Simple bolt-on installation with no drilling required
• Includes a lifetime manufacturer warranty
• Manufacturer Part Number: TORTAC4A

Fits select 2021-2026 Toyota 4Runner, Land Cruiser, Sequoia, Tacoma and Lexus GX550, LX600.

The Timbren SES (Suspension Enhancement System) TORSEQ3 is engineered to provide superior load support and stability for your truck or SUV without the complexity of traditional air springs. These high-performance hollow rubber cushions absorb road shocks and automatically adjust to uneven loads or road conditions, effectively eliminating rear-end sag and vehicle squat while towing or hauling. By providing a progressive spring rate, this system significantly reduces trailer sway and improves overall handling and safety.

Designed for the DIY enthusiast, this kit features a complete bolt-on installation that uses factory mounting points—no drilling or routing of airlines is required. Because there are no fittings or moving parts to maintain, the system is entirely leak-proof and maintenance-free, offering a reliable suspension solution for the life of the vehicle.

• Eliminates vehicle squatting and sagging under heavy loads
• Hollow rubber springs provide a progressive spring rate for improved ride quality
• Reduces trailer sway and improves steering control
• No-drill, bolt-on installation using basic hand tools
• Maintenance-free design with no airlines or fittings to leak
• Manufacturer Part Number: TORSEQ3
• Includes a Lifetime Warranty

Fits 2008-2023 Toyota Sequoia (SR5, Limited, Platinum, TRD Pro, TRD Sport, Nightshade, and Capstone).

The Timbren Suspension Enhancement System (SES) replaces factory bump stops with high-performance Aeon hollow rubber springs to eliminate rear-end sag and vehicle squat under load. This kit provides a progressive spring rate, automatically adjusting to maintain a level vehicle profile and improve roll stability when towing or hauling heavy trailers. Unlike air-spring systems, the SES is maintenance-free and features a leak-proof design with no air lines or fittings required.

• Vehicle Stability: Reduces trailer sway and improves overall handling by providing additional support to the rear suspension.
• Shock Absorption: Aeon rubber cushions absorb road vibrations and harsh impacts for a more controlled ride.
• Maintenance-Free: No air lines, gauges, or compressors to monitor; designed for fit-it-and-forget-it reliability.
• Easy Installation: Bolt-on design requires only basic hand tools; no drilling or vehicle modifications necessary.
• Manufacturer Part Number: TORSEQ1
• Warranty: Lifetime Warranty included.

Fits select 1998-2024 Lexus and Toyota models, including 4Runner, Land Cruiser, FJ Cruiser, Sequoia, GS, GX, and LX.

The Timbren SES (Suspension Enhancement System) TORSEQ is engineered to eliminate vehicle squat and sagging while towing or hauling heavy loads. These progressive-rate rubber springs augment your factory suspension to provide a level ride and increased stability. Unlike air bags, this system requires no airlines, no gauges, and zero maintenance. The cushions bolt directly to factory mounting points, absorbing road shocks and automatically adjusting to uneven loads or road conditions.

• Eliminates vehicle squatting and sagging under heavy loads
• Improves overall handling and reduces trailer sway
• Maintenance-free design with no airlines or fittings to leak
• Simple bolt-on installation using basic hand tools; no drilling required
• Durable progressive-rate rubber cushions for improved ride quality
• Manufacturer Part Number: TORSEQ
• Limited Lifetime Warranty

Fits 2004-2016 Toyota Sienna models (Base, CE, L, LE, Limited, SE, XLE, and XLE Limited).

The Timbren SES (Suspension Enhancement System) kit TORSEN04 is a high-performance rear suspension upgrade designed to eliminate vehicle squatting and sagging under heavy loads. Utilizing Aeon hollow rubber springs, this system provides a progressive spring rate that automatically adjusts to uneven road conditions and trailer tongue weight, significantly reducing trailer sway and improving overall vehicle stability.

Engineered for maximum reliability, the Timbren SES kit requires zero maintenance. Unlike air spring systems, there are no air lines to route, no fittings to leak, and no compressors to fail. The system bolts directly to factory mounting points using basic hand tools, making it an ideal DIY solution for Sienna owners who frequently tow or haul gear.

• Eliminates rear-end sag and bottoming out under heavy loads
• Aeon hollow rubber springs absorb road shocks for improved ride quality
• Maintenance-free design with no air lines or gauges required
• Simple bolt-on installation; no drilling or special tools needed
• Improves steering control and braking effectiveness while loaded
• Manufacturer Part Number: TORSEN04
• Includes a lifetime warranty

Fits select 1979-2026 Toyota Tacoma, Tundra, 4Runner, Pickup, T100, Land Cruiser, and Lexus GX550/LX470 models. This Timbren Suspension Enhancement System (SES) is engineered to replace the factory bump stops on your vehicle's front suspension, providing a significantly improved ride under load and better control on uneven terrain.

The TOFTUN4 kit features high-quality hollow rubber springs that deliver a progressive spring rate. This means they remain soft during normal driving to maintain ride quality, but automatically provide more support as the suspension compresses. This system effectively eliminates front-end squatting and sagging, reduces trailer sway, and cushions road shocks to protect your vehicle's components and improve steering response.

Installation is straightforward and requires no drilling or routing of air lines. These kits are a true "set it and forget it" solution with no maintenance required, as there are no valves or fittings to leak. Every SES kit is built to withstand the harshest environments while providing a lifetime of reliable service.

• Eliminates Squat & Sagging: Maintains proper vehicle height and alignment under load.
• Maintenance-Free: No air lines, gauges, or compressors to manage.
• Progressive Rate: Rubber cushions automatically adjust to load and road conditions.
• Easy Bolt-On Install: Uses existing mounting holes; can be installed in minutes with basic hand tools.
• Durable Construction: High-performance rubber springs designed for longevity and impact absorption.
• Part Number: TOFTUN4
• Warranty: Lifetime Warranty

Fits select 1990-2024 Toyota 4Runner, Land Cruiser, FJ Cruiser, and Lexus GX460/GX470 models.

The Timbren SES (Suspension Enhancement System) TOFTAC4A is a high-performance alternative to traditional air bags, designed to replace the factory bump stops on your vehicle's front suspension. Featuring Aeon® hollow rubber springs, this kit provides a progressive spring rate that automatically adjusts to road conditions and uneven loads. By absorbing road shocks and increasing roll stability, the system effectively eliminates front-end squatting, sagging, and trailer sway.

Engineered for durability and ease of use, the SES system is maintenance-free with no air lines or fittings to leak. The bolt-on design allows for a quick installation using basic hand tools, requiring no drilling. This kit is ideal for vehicles equipped with heavy front-end accessories such as winches, bull bars, or snow plows, ensuring a level ride and improved handling under load.

• Hollow rubber springs provide a progressive rate to cushion road shocks
• Eliminates vehicle sagging and improves overall handling stability
• Maintenance-free design with no air lines or pneumatic components
• Direct bolt-on installation to factory mounting points
• Manufacturer Part Number: TOFTAC4A
• Includes all necessary mounting hardware and brackets
• Lifetime Warranty

Fits select 2000-2023 Toyota Tundra and 2005-2023 Toyota Tacoma models.

Standard Timbren SES kits are engineered for factory ride heights. When you install a suspension lift, leveling kit, or body lift, the increased distance between the frame and the rear leaf springs prevents the helper springs from engaging properly, leading to rear-end sag under load. This Timbren SES spacer kit (SPCRTORTUN4) bridges that gap, restoring the effectiveness of your helper springs for improved towing and hauling stability.

Designed specifically for lifted applications where the empty gap between the frame and leaf spring measures between 6.25 inches and 7.75 inches, this modular kit allows you to fine-tune the engagement point. The included spacers can be mixed and matched to achieve the precise ride height required for your specific lift configuration.

• Specifically engineered to work with Timbren SES kit TORTUN4
• Accommodates frame-to-leaf spring gaps of 6.25" to 7.75"
• Modular design for adjustable ride height engagement
• Includes (2) 1-inch spacers and (2) 1/2-inch spacers
• Complete with all necessary installation hardware
• Manufacturer Part Number: SPCRTORTUN4

Fits 2004-2024 Nissan Titan and 2016-2023 Nissan Titan XD models across all trims including PRO-4X, Platinum Reserve, and SV.

The Timbren Suspension Enhancement System (SES) is engineered to eliminate vehicle squat and sagging under heavy loads. By replacing the factory bump stops with high-performance hollow rubber springs, this kit provides a progressive spring rate that automatically adjusts to uneven loads and road conditions. This results in improved handling, reduced trailer sway, and a more stable ride without compromising empty ride quality.

This maintenance-free system is a reliable alternative to air bags, as it requires no air lines, compressors, or manual adjustments. The bolt-on design utilizes existing factory holes for a straightforward installation that typically takes minutes with basic hand tools. Constructed from durable natural rubber, these cushions absorb road shocks and vibrations to protect your suspension and improve overall safety while towing or hauling.

• Manufacturer Part Number: NRTTNB
• Eliminates vehicle squatting and sagging under load
• Cushions road shocks and improves stability
• Maintenance-free design with no air lines or fittings to leak
• Easy bolt-on installation; no drilling required
• Manufacturer Lifetime Warranty included

Fits 2016-2024 Nissan Titan XD models, including Platinum Reserve, PRO-4X, S, SL, and SV trims.

The Timbren SES (Suspension Enhancement System) NRTTNA is engineered to eliminate rear-end sag and improve vehicle stability under load. This kit replaces the factory bump stops with high-performance hollow rubber springs that provide a progressive spring rate. These springs automatically adjust to uneven loads or road conditions, absorbing road shocks and significantly reducing trailer sway for a more controlled driving experience.

Designed for heavy-duty performance without the complexity of air bags, this system requires no air lines, fittings, or compressors, making it a completely maintenance-free solution. The bolt-on design utilizes existing factory mounting points for a straightforward installation that requires no drilling or special tools.

• Eliminates vehicle squatting and sagging under heavy towing or hauling
• Cushions road shocks and improves overall ride quality
• Maintenance-free design with no air lines to leak or fail
• Easy bolt-on installation with basic hand tools
• High-grade hollow rubber spring construction for long-term durability
• Manufacturer Part Number: NRTTNA
• Lifetime Warranty included

Fits select 2004-2024 Nissan Titan trucks (including LE, Platinum Reserve, PRO-4X, S, SE, SL, SV, and XE models).

The Timbren NRTTN Suspension Enhancement System (SES) is designed to eliminate rear-end sag and improve vehicle handling during heavy hauling or towing. Utilizing Aeon hollow rubber springs, this kit replaces the factory bump stops to provide a progressive spring rate. These springs automatically adjust to uneven loads or road conditions, absorbing road shocks and reducing trailer sway without the complexity of air-based systems.

Built for durability and ease of use, the NRTTN kit features a maintenance-free design with no airlines to leak and no fittings to fail. The bolt-on installation requires no drilling, allowing you to upgrade your suspension with basic hand tools in a matter of minutes.

• Eliminates vehicle squatting and sagging under load
• Cushions road shocks for improved ride quality and stability
• Maintenance-free design with no airlines or compressors
• Heavy-duty rubber construction for longevity and performance
• Easy bolt-on installation using factory mounting points
• Manufacturer Part Number: NRTTN
• Lifetime Warranty

Fits 2022-2026 Nissan Frontier (PRO-4X, PRO-X, S, SL, and SV).

The Timbren SES (Suspension Enhancement System) NRFTR3 is engineered to eliminate rear-end sag and improve vehicle stability when towing or hauling heavy loads. By replacing the factory bump stops with high-performance hollow rubber cushions, this kit provides a progressive spring rate that automatically adjusts to load weight and road conditions. Unlike air spring kits, the SES system is completely maintenance-free with no airlines to route, no fittings to leak, and no manual pressure adjustments required.

• Eliminates vehicle squatting and sagging while towing or hauling.
• Hollow rubber cushions absorb road shocks and reduce trailer sway for a more controlled ride.
• Simple bolt-on installation utilizes factory mounting points with no drilling required.
• Maintenance-free design with no airlines or fittings to service.
• Constructed for durability and backed by a lifetime warranty.
• Includes all necessary mounting hardware and instructions.
• Manufacturer Part Number: NRFTR3

Fits select 2002-2023 Dodge, Freightliner, and Mercedes-Benz Sprinter 2500 models. This Timbren Suspension Enhancement System (SES) provides a maintenance-free solution for heavy-duty hauling and towing by replacing the factory bump stops with progressive-rate rubber springs.

Designed to eliminate vehicle squatting, sagging, and excessive trailer sway, the MBRSP25A kit automatically adjusts to uneven loads and road conditions. The hollow rubber cushions absorb road shocks and improve overall handling without the complexity of air lines or fittings. Installation is a straightforward bolt-on process using basic hand tools, requiring no drilling or routing of lines.

• Eliminates rear-end sag and improves vehicle stability under load
• Maintenance-free design with no air lines or gauges required
• Simple bolt-on installation using factory mounting points
• High-quality rubber spring technology since 1965
• Manufacturer Part Number: MBRSP25A
• Includes a lifetime warranty

Fits select 2002-2026 Dodge Ram Van, Freightliner Sprinter, and Mercedes-Benz Sprinter 2500/3500 models.

The Timbren Suspension Enhancement System (SES) MBFSP35 is engineered to improve vehicle stability and ride quality by replacing the factory bump stops with high-performance Aeon hollow rubber springs. This front-axle kit is designed to handle the heavy-duty requirements of van platforms, effectively eliminating vehicle squatting and sagging while providing a progressive spring rate that adjusts automatically to road conditions and cargo loads.

This system is ideal for Sprinter and Ram Van owners who experience trailer sway, instability, or excessive suspension settling. Unlike air bag systems, Timbren SES kits require zero maintenance—there are no air lines to route, no fittings to leak, and no pressure to monitor. The bolt-on design allows for a straightforward installation using basic hand tools with no drilling required.

• Eliminates front-end squat and sagging under heavy loads
• Aeon rubber springs absorb road shocks and improve overall handling
• Durable construction designed to withstand extreme temperatures and road debris
• Maintenance-free design with no air lines or compressors needed
• Simple bolt-on installation into factory mounting points
• Manufacturer Lifetime Warranty
• MPN: MBFSP35

Fits select 2007-2025 Jeep Wrangler and Wrangler JK models including Rubicon, Sahara, Sport, and Unlimited trims.

The Timbren SES (Suspension Enhancement System) JRJK is engineered to provide superior rear-load support for your Jeep Wrangler without the complexity of traditional air bags. These high-performance rubber cushions are designed to absorb road shocks and automatically adjust to uneven loads, effectively eliminating vehicle squat and sagging during towing or heavy hauling. This improves overall handling, reduces trailer sway, and ensures a more stable ride quality on and off-road.

Built for durability and ease of use, this kit features a maintenance-free design with no air lines to route or fittings to leak. The system installs in minutes using basic hand tools, bolting directly to factory mounting points without the need for drilling.

• Eliminates rear-end squatting and sagging under heavy loads
• Cushions road shocks and improves overall vehicle handling
• Maintenance-free design with no air lines or compressors required
• Simple bolt-on installation with no drilling or routing necessary
• Includes heavy-duty rubber cushions and all required mounting hardware
• Manufacturer Part Number: JRJK
• Lifetime Warranty

The Timbren SES (Suspension Enhancement System) JRC01 is engineered to improve vehicle stability and load-handling performance for select 1984-2015 Jeep and Nissan applications. By replacing the factory bump stops with high-performance hollow rubber springs, this kit provides a progressive spring rate that automatically adjusts to heavy loads or uneven road conditions. This design effectively eliminates vehicle squatting and sagging while reducing trailer sway and body roll.

Unlike traditional air bags, the Timbren SES is completely maintenance-free. There are no air lines to route, no fittings to leak, and no manual pressure adjustments required. The system installs in minutes using basic hand tools, bolting directly to existing factory mounting points with no drilling or modifications necessary.

• Manufacturer Part Number: JRC01
• Material: High-quality hollow rubber cushions
• Prevents rear-end sag under heavy loads or towing
• Improves overall handling and ride quality
• Maintenance-free design with no air lines or compressors
• Easy bolt-on installation with included hardware
• Lifetime warranty included

Fits select 1984-2015 Jeep Cherokee, Comanche, Wagoneer, Grand Wagoneer, and Nissan Xterra.

Fits select 1997-2025 Jeep Wrangler (including JK/JL) and 2020-2025 Jeep Gladiator models across all trim levels including Rubicon, Sahara, and Sport.

Upgrade your front-end stability with the Timbren SES (Suspension Enhancement System) kit. Designed to replace factory bump stops, these hollow rubber springs provide a progressive spring rate that automatically adjusts to vehicle load and road conditions. Whether you are running heavy aftermarket bumpers, winches, or snowplows, this kit eliminates vehicle squat and front-end sag while significantly reducing body roll and improving overall handling.

The JFTJ system is engineered for long-term reliability with no air lines to route and no fittings to leak. The bolt-on design allows for a straightforward installation using basic hand tools, requiring no drilling or permanent modifications to your frame. The natural rubber cushions absorb road shocks, providing a smoother ride quality without the maintenance requirements of traditional air helper springs.

• Eliminates front-end squat and sagging under heavy loads
• Improves steering control and braking stability
• Maintenance-free design with no air lines or leaks
• Easy bolt-on installation to factory mounting points
• High-performance hollow rubber springs for progressive support
• Manufacturer Part Number: JFTJ
• Lifetime Warranty included

Fits select 1996-2017 Acura MDX, Honda Odyssey, Honda Pilot, and Isuzu Oasis. This Timbren SES (Suspension Enhancement System) kit is engineered to provide additional support and stability for your vehicle's rear suspension under heavy loads. By utilizing high-performance hollow rubber springs, this system eliminates vehicle squatting and sagging while significantly reducing trailer sway and improving overall handling during towing or hauling.

The HROD2 kit features a maintenance-free design with no air lines to leak or fittings to monitor. The progressive rate of the rubber cushions allows them to automatically adjust to uneven loads or road conditions, ensuring a smooth ride whether the vehicle is loaded or empty. Installation is a straightforward, direct bolt-on process that requires no drilling and can be completed in minutes using basic hand tools.

• Specifically designed for select Acura, Honda, and Isuzu models (1996-2017)
• Eliminates rear-end sag and vehicle squatting under load
• Cushions road shocks and reduces trailer sway for improved safety
• Durable rubber spring technology with a progressive spring rate
• Easy bolt-on installation with no drilling or air lines required
• Manufacturer Part Number: HROD2
• Includes a lifetime warranty

Fits 2018-2025 Honda Odyssey Elite, EX, EX-L, LX, Sport, Sport-L, and Touring models.

The Timbren SES (Suspension Enhancement System) kit HRDD5G is engineered to solve the common issue of rear-end sag and squat in your Honda Odyssey. By replacing the OEM bump stops with high-performance hollow rubber springs, this system provides additional support for heavy cargo, passengers, and towing. The progressive rate of the rubber cushions means they automatically adjust to the load, providing a smooth ride when empty and maximum stability when loaded.

This kit is designed for a completely maintenance-free experience. Unlike air suspension systems, there are no airlines to route, no fittings to leak, and no manual pressure adjustments required. The bolt-on design utilizes factory mounting points for an installation that can be completed in minutes using basic hand tools with no drilling required.

• Eliminates vehicle squatting and sagging under heavy loads
• Improves handling and reduces trailer sway for safer towing
• Absorbs road shocks and vibrations for a more comfortable ride
• No-drill, easy bolt-on installation using factory mounting points
• Zero maintenance required—no airlines, gauges, or compressors
• Manufacturer Part Number: HRDD5G
• Includes a Lifetime Warranty