Fits select 2006-2015 BMW 1 Series, 3 Series, and X1 (including 128i, 135i, 325i, 328i, 330i, 335i, and X1 sDrive/xDrive models).

The SuperPro Rear Trailing Arm Bushing Set is designed to stabilize suspension movement and maintain precise wheel geometry under load. Factory rubber bushings are prone to excessive deflection, which leads to dynamic changes in alignment, unpredictable handling, and accelerated tire wear. By replacing worn OE components with this high-performance bushing set, you ensure that the rear trailing arms remain properly located through every corner and compression.

This kit is an ideal solution for both standard repairs and performance upgrades, offering a more durable alternative to soft rubber that restores steering response and chassis stability.

• Manufacturer Part Number: SPF3953K
• Position: Rear Trailing Arm
• Replaces soft or worn factory rubber bushings
• Maintains correct wheel alignment geometry in all driving situations
• Reduces dynamic toe and camber changes for improved tire life
• Includes all necessary bushings for the trailing arm application

Fits select 2006-2016 Lexus IS250, IS350, and IS F (Base / C / F Sport).

The SuperPro Rear Trailing Arm Forward Bushing Kit (SPF3504K) is designed to replace soft or worn factory rubber bushings that allow excessive movement in the rear suspension. By stabilizing the trailing arm, this kit ensures that correct suspension geometry is maintained under various driving conditions, preventing the dynamic alignment changes that lead to unpredictable handling and accelerated tire wear.

Engineered for high durability and precision, these bushings provide a significant upgrade for both daily driving and performance applications. This kit is a direct-fit solution that restores chassis responsiveness and improves rear-end stability.

• Reduces trailing arm deflection for more consistent wheel alignment
• Improves handling precision and tire contact patch stability
• Replaces compliant factory rubber with performance-engineered bushings
• Designed for a long service life in harsh road environments
• Manufacturer Part Number: SPF3504K

Fits select 2006-2016 Lexus IS250, IS350, and IS F (Base, C, and F Sport models).

The SuperPro SPF3501K Rear Upper Trailing Arm Rearward Bushing Kit is designed to stabilize the movement of the trailing arms, ensuring suspension geometry is maintained under heavy load and varying driving conditions. Factory rubber bushings are prone to deflection and wear, leading to dynamic changes in wheel alignment that compromise handling precision and accelerate tire wear. These polyurethane bushings serve as both a durable repair and a performance upgrade, delivering more consistent handling without the excessive noise or vibration often associated with inferior materials.

• Replaces worn or soft factory OE bushings in the rearward position of the rear upper trailing arm
• Maintains precise wheel alignment for improved handling and extended tire life
• Advanced material formulation provides long-lasting durability and resistance to oils and chemicals
• Engineered for a direct fit in the factory mounting locations
• Manufacturer Part Number: SPF3501K

Fits 2001-2005 Lexus IS300 Base and Sportcross models.

Upgrade your front suspension with the SuperPro Front Rearward Radius Arm Bushing Set (SPF3042K). This double offset kit is engineered to deliver increased positive caster to both sides of the vehicle, correcting suspension geometry to enhance overall handling performance. Unlike aggressive alignment changes that can compromise tire longevity, this kit provides a non-tire-wearing geometry adjustment that substantially improves vehicle control.

• Delivers positive caster for improved directional stability and high-speed tracking
• Enhances steering response with a crisper, more communicative feel
• Optimizes "return to center" steering wheel feedback
• Double offset design allows for precise caster correction
• High-quality construction replaces soft, worn factory rubber bushings

Manufacturer Part Number: SPF3042K

Fits 1992-2000 Lexus GS300, SC300, SC400, and Toyota Supra (Base and Twin Turbo).

The SuperPro SPF3031K Trailing Arm Rearward Bushing Kit is designed to replace the factory rubber bushings located in the hub assembly. These bushings stabilize the trailing arm movement to ensure correct suspension geometry is maintained under load. Worn or degraded OE rubber bushings lead to dynamic changes in wheel alignment, which negatively impacts vehicle handling and significantly reduces tire life.

As a performance-oriented repair or upgrade, these bushings provide a precise fit and durable service life, maintaining alignment settings even during aggressive driving. This kit specifically targets the rearward position within the hub to restore steering response and chassis stability.

• Manufacturer Part Number: SPF3031K
• Installation Location: Trailing arm rearward (In Hub)
• Replaces worn OE rubber bushings to maintain wheel alignment
• Improves handling consistency and tire wear characteristics
• Engineered for 1992-2000 Toyota and Lexus chassis

Fits select 1992-2000 Lexus GS300, SC300, SC400, and Toyota Supra (Base and Twin Turbo).

The SuperPro Rear Trailing Arm Forward Bushing Kit (SPF3030K) is engineered to replace soft or deteriorated factory rubber bushings that allow for excessive movement and dynamic alignment changes. By stabilizing the trailing arm's forward pivot point, these bushings ensure consistent suspension geometry is maintained under load, resulting in more predictable handling, improved stability, and extended tire life.

Constructed from high-grade polyurethane, these bushings offer superior durability and resistance to environmental contaminants compared to OE rubber. They are designed as a direct-fit solution for enthusiasts looking to restore steering precision or upgrade their vehicle's suspension performance.

• Part Type: Rear Trailing Arm Forward Bushing
• Replaces worn OE rubber components to maintain alignment geometry
• Improves chassis feedback and handling response
• High-durability polyurethane construction for long-lasting service life
• Manufacturer Part Number: SPF3030K

Fits select 2008-2017 Chevrolet Caprice PPV, SS, and Pontiac G8 (Base, GT, GXP).

The SuperPro SPF2867K Rear Trailing Arm Bushing Set is engineered to stabilize trailing arm movement, ensuring critical suspension geometry is maintained under heavy load and cornering. Standard factory rubber bushings are prone to excessive deflection and degradation over time, leading to dynamic wheel alignment changes that compromise handling precision and accelerate tire wear.

This four-piece polyurethane kit provides a more consistent mounting point for the trailing arms, delivering sharper steering response and improved chassis stability without the harshness associated with solid metal bearings. It serves as both a high-durability repair solution and a performance upgrade for enthusiasts looking to restore or improve their vehicle's handling characteristics.

• Manufacturer Part Number: SPF2867K
• Kit Includes: 4 Rear Trailing Arm Bushings
• Maintains alignment geometry to improve handling and reduce tire wear
• Advanced polyurethane material for long-term durability over OE rubber
• Direct replacement for soft or worn factory trailing arm bushings

Fits 1992-2005 Lexus GS300, GS400, IS300, SC300, and SC400.

The SuperPro SPF2785K Rear Trailing Arm Rearward Bushing Kit is engineered to restore suspension precision and eliminate the dynamic alignment shifts common with aged factory rubber components. Control arm bushings are critical for stabilizing arm movement; when OE rubber bushings soften or perish, they allow for excessive deflection that compromises handling and accelerates tire wear. This kit provides a high-durability upgrade that maintains correct geometry in all driving situations.

• Direct replacement for worn-out OE rearward trailing arm bushings
• Proprietary polyurethane material offers superior memory and durability compared to rubber
• Reduces dynamic changes in wheel alignment for more predictable handling
• Resistant to oils, fuels, and road grime for a longer service life
• Improves tire longevity by maintaining consistent contact patches
• Manufacturer Part Number: SPF2785K

Fits select 1998-2024 Lexus GX460, GX470, LX470 and Toyota 4Runner, FJ Cruiser, and Land Cruiser.

SuperPro SPF2461K Trailing Arm bushings are designed to stabilize rear axle movement and ensure suspension geometry remains consistent under load. Original equipment rubber bushings are prone to excessive deflection and fatigue, leading to dynamic changes in wheel alignment that compromise handling precision and accelerate tire wear. This polyurethane upgrade provides a more resilient pivot point, restoring chassis communication and maintaining alignment settings during articulation.

• Replaces worn or soft factory rubber bushings to eliminate geometry drift
• High-grade polyurethane construction for superior durability and oil resistance
• Improves rear-end stability and predictable handling characteristics
• Direct fit for the rear lower trailing arm location
• Manufacturer Part Number: SPF2461K

Note: Each SPF2461K kit includes two (2) bushing assemblies. To replace both the forward and rearward bushings in both lower trailing arms, two (2) kits are required per vehicle.

Fits 2000-2005 Toyota MR2 Spyder Base.

Control arm and trailing arm bushings serve as the vital pivot points between your suspension components and the chassis. Over time, factory rubber bushings degrade, causing excessive deflection that leads to sluggish steering response, a sloppy driving feel, and accelerated tire wear. This is particularly noticeable in vehicles equipped with grippier tire compounds or heavier aftermarket wheels.

The SuperPro Rear Trailing Arm Bushing Kit (SPF2398K) replaces these worn components with high-grade polyurethane, developed through decades of testing in Australia's most demanding environments. These bushings are engineered to restore suspension geometry and improve road manners without compromising cabin comfort. SuperPro designs their material compositions to retain OEM levels of noise, vibration, and harshness (NVH) isolation while providing the durability required for both daily commuting and spirited track use.

• Direct replacement for factory rear trailing arm bushings
• Proprietary polyurethane material for superior longevity and performance
• Reduces suspension deflection for more predictable handling
• Maintains original levels of ride comfort and cabin isolation
• Engineered and tested for harsh driving conditions
• Manufacturer Part Number: SPF2398K

Fits 1990-1994 Lexus LS400 Base.

Restore handling precision and eliminate suspension slop with the SuperPro Rear Trailing Arm Rearward Bushing Kit. These polyurethane bushings replace the worn factory rubber components that serve as the vital pivot point for your LS400’s rear suspension. Over time, original bushings soften and deflect, leading to slower steering response, irregular tire wear, and a degraded driving experience.

Engineered and tested in Australia's harsh conditions, SuperPro bushings provide superior durability and performance without sacrificing ride quality. The advanced material composition is designed to maintain OEM levels of noise, vibration, and harshness (NVH) isolation while delivering more consistent suspension geometry under load.

• Direct replacement for OE rearward trailing arm bushings
• High-grade polyurethane construction for longevity
• Reduces unwanted deflection and movement
• Maintains factory comfort and cabin isolation
• Manufacturer Part Number: SPF2249K

Fits 1990-1994 Volvo 740, 940, and 960 models.

The SuperPro SPF2013K Front Rearward Radius Arm-to-Chassis Mount Bushing Kit is engineered to replace worn, soft factory rubber bushings that often lead to steering wander and inconsistent alignment. By utilizing a proprietary engineering-grade polyurethane formula, these bushings maintain precise steering geometry and improve handling response under braking and cornering loads. Unlike standard rubber, SuperPro polyurethane is resistant to extreme temperatures, road salt, oils, and engine coolants, ensuring a significantly longer service life.

Designed and manufactured in Australia, these bushings provide a superior alternative for drivers looking to restore the structural integrity of their Volvo suspension without the harshness often associated with inferior aftermarket materials. The kit is a direct fit for the factory mount points, offering a quieter, more durable solution for high-mileage chassis.

• Manufacturer Part Number: SPF2013K
• Material: Proprietary engineering-grade polyurethane
• Placement: Front suspension, rearward radius arm-to-chassis mount
• Compatibility: Direct replacement for OE bushings
• Durability: Resistant to oils, water, and extreme temperatures
• Warranty: Manufacturer Lifetime Warranty

Fits select 1990-2008 Subaru Forester, Impreza, and Legacy, and 2005-2006 Saab 9-2X models.

SuperPro trailing arm bushings are engineered to stabilize the movement of the rear suspension arms, ensuring that critical wheel alignment geometry is maintained under various driving loads. The factory-installed rubber bushings often soften or perish over time, leading to dynamic changes in alignment that negatively impact handling precision and accelerate tire wear. This kit provides a durable repair and performance upgrade by replacing those worn components with high-grade polyurethane.

By installing the SuperPro SPF1907K kit, you restore the rear suspension's predictability and tire contact patch consistency. This is a direct-replacement solution for the lower rearward position on the trailing arm, designed for long-term service life in both daily driving and spirited environments.

• Replaces worn or soft OE rubber bushings to restore handling
• Maintains consistent suspension geometry and alignment
• Improves tire longevity by preventing unwanted toe and camber changes
• Includes high-quality polyurethane bushings and necessary hardware
• Manufacturer Part Number: SPF1907K

Fits select 1990-2008 Subaru Legacy, Impreza, and Forester models, as well as 2005-2006 Saab 9-2X.

The SuperPro SPF1491K Rear Trailing Arm Lower Forward Bushing Kit is designed to replace soft or worn factory rubber bushings that act as critical pivot points for your vehicle's rear suspension. Defective or aged bushings allow for excessive trailing arm deflection, leading to vague steering response, unsettled handling, and accelerated tire wear. This kit restores chassis stability, ensuring your suspension geometry remains consistent under load.

Forged from nearly 50 years of development in Australia's harshest environments, SuperPro polyurethane provides superior durability without sacrificing ride quality. These bushings are engineered to deliver precise handling and improved road manners while maintaining OEM-level noise, vibration, and harshness (NVH) isolation for daily driving comfort.

• Replaces compliant factory trailing arm lower forward bushings
• High-grade polyurethane construction for long-term durability
• Maintains factory-level cabin isolation and passenger comfort
• Reduces deflection to improve tire contact and handling response
• Ideal for vehicles with upgraded wheels, tires, or braking systems
• Manufacturer Part Number: SPF1491K

Fits select 1975-1993 Volvo 240, 242, 244, 245, 262, 264, and 265.

Restore steering precision and chassis stability to your classic Volvo with the SuperPro SPF1312K Rear Trailing Arm-to-Axle Bushing Kit. Over time, original rubber bushings degrade and soften, leading to excessive movement in the rear suspension and dynamic changes in wheel alignment during cornering or braking. This kit is engineered to stabilize the trailing arms, ensuring consistent suspension geometry under load while improving overall handling and extending tire life.

Specifically designed for efficient installation, this kit utilizes a design that allows for the re-use of the factory OEM metal shell. This eliminates the need to remove the difficult-to-extract factory shells, providing a high-performance upgrade that mounts directly into the existing housing.

• Manufacturer Part Number: SPF1312K
• Component Type: Rear Trailing Arm-to-Axle Bushings
• Installation Detail: Designed to install into the original factory metal outer shells
• Performance: Maintains correct wheel alignment and reduces rear-end deflection
• Construction: Engineered for long-term durability and resistance to oils and road salt

Fits select 1983-2007 Geo, Lexus, and Toyota models including Avalon, Camry, Celica, Corolla, Highlander, Prizm, and Solara.

Rear trailing arm bushings serve as the vital pivot point and link between core suspension components. Over time, original equipment rubber bushings soften and perish, leading to significant deflection, slower steering response, and irregular tire wear. This SuperPro polyurethane bushing set is engineered to restore handling precision and eliminate the sloppy feel caused by worn suspension links, especially on vehicles with larger wheels or upgraded braking systems.

Utilizing proprietary material technology developed through decades of suspension expertise, these bushings offer superior durability compared to standard rubber without sacrificing ride quality. They are designed to maintain OEM levels of noise, vibration, and harshness (NVH) isolation while providing the stability required for consistent alignment geometry in all driving conditions.

• Manufacturer Part Number: SPF0823K
• Material: Proprietary SuperPro Polyurethane
• Component: Rear Trailing Arm Bushing Set
• High durability construction for harsh terrain and daily commuting
• Reduces deflection and improves throttle and braking response
• Retains OEM levels of noise and cabin isolation

Fits 2004-2006 Pontiac GTO Base.

The SuperPro SPF0756CK bushing kit is a high-performance replacement for the factory front arm-to-strut rod (lower radius arm) bushings. Engineered to address the common failures of standard rubber components, these polyurethane bushings provide a more precise connection between the radius arm and the control arm, significantly improving steering feel and maintaining correct suspension geometry during heavy braking and cornering.

• Proprietary Polyurethane: Made with SuperPro's engineering-grade formula for a quieter, longer-lasting alternative to rubber.
• Durability: Unaffected by extreme temperatures, oils, water, or coolant.
• Improved Dynamics: Enhances handling, steering response, and tire wear by reducing unwanted suspension movement.
• Proven Engineering: Designed, engineered, and manufactured in Australia for superior quality and service life.
• Lifetime Warranty: Backed by a manufacturer lifetime warranty for total peace of mind.

This kit replaces worn OE bushings to restore factory alignment and performance. Manufacturer Part Number: SPF0756CK.

Fits select 1967-1993 Volvo 142, 144, 145, 240, 242, 244, 245, 262, 264, and 265 models.

SuperPro polyurethane bushings are engineered to solve the inherent flaws of factory rubber components. As original equipment bushings age, they allow excessive deflection and movement in the rear suspension, leading to slower steering response, a disconnected road feel, and irregular tire wear. This Rear Upper Trailing Arm Bushing Set (Parallel Eye) replaces those worn components with a material that maintains its shape under load without compromising ride quality.

Designed and tested in Australia's demanding terrain, these bushings deliver superior performance for both daily commuting and track environments. The proprietary material composition ensures that you retain OEM levels of noise, vibration, and harshness (NVH) isolation while gaining much-needed stability and precision in the rear-end geometry.

• Manufacturer Part Number: SPF0727K
• Location: Rear Upper Trailing Arm
• Configuration: Parallel Eye
• Material: High-grade performance polyurethane
• Resistant to oils, chemicals, and extreme weathering
• Optimizes suspension geometry and tire contact patch
• Direct replacement for factory bushings

Fits select 1975-1993 Volvo 240, 242, 244, 245, 262, 264, and 265 models.

The rear lower trailing arm forward bushing is a critical pivot point that dictates the alignment and response of your Volvo's rear suspension. Over time, original equipment rubber bushings degrade, resulting in significant deflection, vague steering response, and accelerated tire wear. This SuperPro polyurethane kit replaces the worn factory components to restore handling precision and maintain proper suspension geometry under load.

Engineered and tested in Australia's demanding environments, SuperPro bushings are designed to bridge the gap between track-ready performance and daily-driver comfort. These bushings provide superior durability over rubber without compromising the noise, vibration, and harshness (NVH) isolation necessary for a refined cabin experience.

• Improved Handling: Reduces deflection at the trailing arm pivot for more predictable cornering and braking.
• Durability: High-grade polyurethane construction resists oil, road salt, and environmental degradation better than standard rubber.
• Ride Quality: Proprietary material composition maintains OEM levels of cabin isolation while increasing service life.
• Precision Fit: Engineered as a direct replacement for factory bushings to ensure a straightforward installation process.
• Part Number: SPF0639K

Fits 1991-1997 Toyota Land Cruiser and 1996-1997 Lexus LX450 (Base).

The radius arm-to-chassis bushings are critical pivot points in your front suspension. Worn factory bushings allow for excessive deflection, leading to vague steering, wandering at highway speeds, and irregular tire wear. These issues are often magnified in vehicles equipped with larger wheels, heavier tires, or off-road modifications. The SuperPro SPF0440K kit provides a durable polyurethane solution designed to restore chassis stability and steering precision.

Engineered and tested in the demanding Australian Outback, SuperPro polyurethane components are formulated to withstand extreme conditions without the harshness often associated with performance bushings. This kit delivers improved road manners and response while maintaining OEM levels of noise, vibration, and harshness (NVH) isolation.

• Precision Handling: Minimizes dynamic movement to provide a more stable and predictable drive.
• Advanced Polyurethane: Offers superior durability and resistance to oils and environmental factors compared to rubber.
• Optimized Design: Specifically engineered to handle the increased loads of oversized wheels and tires.
• Direct Fit: Replaces factory front rearward radius arm-to-chassis bushings.
• Part Number: SPF0440K

Fits 1991-1997 Toyota Land Cruiser and 1996-1997 Lexus LX450.

The SuperPro SPF0396K Front Forward Radius Arm-to-Differential Bushing Set is a high-performance replacement for worn-out factory rubber components. These bushings are critical for maintaining front axle alignment and steering geometry, particularly during braking or under the stresses of off-road articulation. Built from SuperPro's proprietary engineering-grade polyurethane, these bushings provide the stability and precision of a performance material without the noise and vibration often associated with lower-grade poly alternatives.

• Proprietary polyurethane formula resistant to oils, coolant, water, and extreme temperatures
• Maintains precise steering geometry and improves tire wear
• Engineered to provide a superior service life compared to OEM rubber
• Designed, tested, and manufactured in Australia
• Manufacturer Part Number: SPF0396K

Vehicle Fitment

Fits 2008-2015 Mitsubishi Lancer Evolution (GSR, MR, MR Touring, SE, and Final Edition).

The SuperPro DURO3725K Rear Trailing Arm Forward Bushing Kit provides a significant upgrade over factory rubber and traditional elastomer bushings. Utilizing the innovative DuroBall design, this kit features an isolated spherical bearing encased in a proprietary polyurethane compound. This hybrid construction delivers the precise geometry and friction-free articulation of a spherical joint while maintaining the NVH (Noise, Vibration, and Harshness) mitigation required for daily driving.

By replacing worn OE bushings, the DuroBall system eliminates unwanted deflection that leads to sloppy handling, irregular tire wear, and diminished suspension response. This is particularly critical for vehicles equipped with larger wheels, stickier tires, or upgraded braking systems that place higher loads on suspension pivot points.

• Increased Precision: Spherical bearing design ensures consistent suspension geometry under load.
• NVH Isolation: Bespoke polyurethane casing dampens road noise and vibration.
• Friction-Free Articulation: Allows dampers and springs to operate more effectively through their full range of motion.
• Durability: Engineered to withstand harsh track use and demanding street conditions.
• Part Number: DURO3725K

Fits 2009-2024 Nissan GT-R (R35) models, including Premium, Nismo, Black Edition, and Track Edition.

SPL Parts FKS Rear Upper Control Arm Monoball Bushings (RUAB) replace factory rubber bushings to eliminate the deflection and bind that compromise handling under heavy cornering loads. By utilizing low-friction articulating spherical bearings, these bushings maintain precise suspension geometry, providing more consistent tire contact and significantly improved driver feedback.

Each shell is CNC machined from T6061 aluminum to a tolerance of 1/1000th of an inch for an exact press-fit into the factory control arms. The kit utilizes high-grade FK racing bearings featuring a self-lubricating Teflon liner, ensuring a long service life and maintenance-free performance in both street and track environments.

• Replaces soft OEM rubber bushings to eliminate suspension deflection and bind
• CNC machined T6061 aluminum bearing shells with 1/1000-inch precision
• High-load FK spherical bearings with self-lubricating Teflon liners
• Maintains optimum alignment settings under high cornering loads
• Complete kit includes components for one vehicle
• Manufacturer Part Number: SPL RUAB R35
• Proudly engineered and manufactured in the USA

Fits select 1992-2006 BMW 3 Series (E36, E46) and Z3 models.

SPL Parts FKS Series Rear Upper Arm Bushings (RKB) replace compliant factory rubber bushings with high-precision, low-friction articulating spherical bearings. By eliminating bushing deflection and reducing friction-induced bind, these monoball replacements maintain optimal suspension geometry under heavy cornering or braking loads. This ensures consistent camber and toe settings for more predictable handling and improved driver feedback.

Engineered for high-performance use, these bushings are a direct replacement for the OEM components, providing a significant upgrade for track-driven vehicles and performance enthusiasts. The CNC-machined aluminum shells ensure an exact press-fit into the factory arms.

• FK Racing Bearings with self-lubricating Teflon liners for maximum performance and longevity
• CNC machined T6061 Aluminum bearing shells (tolerances held to 1/1000th inch)
• Eliminates unwanted camber and toe changes under load
• Sold as a complete kit for one vehicle
• Manufacturer Part Number: SPL RUAB E36
• Proudly designed, engineered, and assembled in the USA

Fits 2015-2023 Ford Mustang S550 models including EcoBoost, GT, V6, Mach 1, Bullitt, and Shelby GT350/GT500.

SPL Parts Rear Toe Arm Bushings replace the compliant factory bushings in the rear knuckle to eliminate the significant deflection that occurs under heavy load. By removing this compliance, you maintain consistent toe settings during hard cornering and acceleration, resulting in more predictable handling and improved traction.

These bushings are specifically engineered for compatibility with the standard OEM knuckle. Note that Ford Performance replacement bushings for this location are wider than the standard Ford units; these SPL bushings ensure your SPL Rear Toe Arms (RTA S550) fit correctly while further reducing weight and suspension deflection. This is a critical upgrade for any S550 Mustang driven on the track or high-performance street applications.

• Replaces soft factory rear knuckle toe bushings
• Eliminates unwanted toe-angle changes under load
• Designed for precision fitment with SPL Rear Toe Arms (RTA S550)
• Proudly engineered, machined, and assembled in the USA
• Sold as a pair
• Manufacturer Part Number: SPL RTAB S550

Vehicle Fitment

Fits select 2006-2026 BMW 1, 2, 3, and 4 Series, including M2, M3, and M4 models. These SPL Parts Rear Lower Control Arm Knuckle Bushings replace the compliant factory rubber units with high-performance, low-friction Teflon-lined spherical bearings.

By eliminating the soft OEM rubber, these bushings significantly reduce deflection under heavy cornering loads and prevent suspension bind as the arm moves through its travel. This results in more precise wheel rate control and improved rear-end stability. SPL utilizes the largest possible FK bearings to maximize service life and maintain low NVH levels for a performance-oriented ride.

• CNC machined from 6061-T6 aluminum to +/- .001" tolerances for a precise press-fit
• High-load FK Teflon-lined spherical bearings for smooth, maintenance-free operation
• Replaces BMW Part Numbers: 33326775552, 33326756249
• Sold as a pair
• Engineered, machined, and assembled in the USA

Fits select 2006-2026 BMW 1 Series, 3 Series, M2, M3, and M4 models. This set of rear lower control arm inner bushings replaces the compliant factory rubber bushings with low-friction, high-precision spherical bearings to eliminate suspension deflection under heavy cornering and braking loads.

By swapping the OEM component for a PTFE-lined spherical bearing, these bushings remove the binding associated with rubber, allowing the control arm to travel smoothly through its range of motion. This upgrade is essential for maintaining consistent camber and toe geometry, providing more predictable handling and increased rear cornering grip. To ensure maximum longevity and minimal NVH (noise, vibration, and harshness), SPL utilizes the largest possible FK bearings with a high-tolerance fit.

• 6061-T6 aluminum bearing shells and spacers for lightweight strength
• FK PTFE-lined spherical bearings (F1 spec, self-cleaning) for maintenance-free operation
• Eliminates OEM bushing deflection and binding for precise dynamic geometry
• Replaces OEM Part Number: 33326770829
• Manufacturer Part Number: SPL RLBI E9X
• Proudly engineered, made, and assembled in the USA
• Sold as a pair

Fits 2016-2025 Mazda MX-5 Miata and 2017-2020 Fiat 124 Spider.

The SPL Parts Rear Knuckle Bushing Kit (SPL RKB ND) provides a precision-engineered solution to eliminate the suspension deflection and compliance inherent in factory rubber bushings. By replacing the OEM rubber-injected bushings and metal sleeves with a full spherical solution, this kit removes the "street-car" mushiness that compromises handling during aggressive driving.

Standard rubber bushings bind and deflect under heavy cornering loads, leading to unpredictable alignment changes and reduced contact patch stability. These spherical bearings provide smooth articulation without adding artificial spring rate, ensuring your suspension geometry remains consistent so you can drive your tires to their full potential grip.

• Replaces compliant factory rubber knuckle bushings with high-precision spherical bearings
• Eliminates suspension binding and unwanted deflection
• Provides consistent alignment geometry under high cornering loads
• Full spherical bearing design for zero-compliance articulation
• Proudly engineered, manufactured, and assembled in the USA
• Manufacturer Part Number: SPL RKB ND

Fits 2013-2026 Scion FR-S, Subaru BRZ, WRX, STI, and Toyota 86/GR86.

SPL Parts Rear Knuckle Bushings (SPL RKB FRS) replace the compliant factory rubber bushings with low-friction, PTFE-lined spherical bearings. By eliminating OEM rubber deflection under heavy acceleration and braking loads, these bushings prevent unwanted geometry changes and stop suspension binding. This ensures the knuckle articulates smoothly through its travel, resulting in sharper throttle response, reduced wheel hop, and significantly improved driver feedback.

Engineered for maximum longevity and performance, these bushings utilize the largest possible FK bearings housed in 6061-T6 aluminum shells. Each housing is precision-cut to a +/- .001" tolerance to ensure a perfect press-fit and reliable operation in high-stress environments.

• Eliminates suspension deflection for consistent alignment geometry
• Precision-machined 6061-T6 aluminum bearing shells (+/- .001" tolerance)
• Maintenance-free, US-made, PTFE-lined FK spherical bearings
• Lightweight design: 0.674 lbs (306g) per set / 0.337 lbs (153g) per side
• Improves throttle and braking response while reducing wheel hop
• Proudly engineered, manufactured, and assembled in the USA
• Manufacturer Part Number: SPL RKB FRS

Fits select 1992-2006 BMW 318i/is/ti, 323i/Ci, 325i/Ci/xi, 328i/Ci, 330i/Ci/xi, M3, and Z3 models.

SPL Parts FKS Series Rear Knuckle Bushings (RKB) replace compliant factory rubber bushings with low-friction, articulating spherical bearings to eliminate bushing flex and reduce suspension bind. These monoball upgrades maintain optimum suspension geometry under heavy loads, removing the unwanted camber and toe changes that occur with OE rubber components during aggressive driving or track use.

Built for durability and precision, these bushings feature FK Racing Bearings with self-lubricating Teflon liners for maintenance-free performance and long service life. The bearing shells are CNC machined from T6061 aluminum to a tolerance of 1/1000th of an inch, ensuring an accurate press-fit and maximum chassis feedback. This kit provides a significant improvement in handling and predictability by providing a solid link between the suspension and the knuckle.

• Replaces soft factory rubber with high-load spherical bearings
• Maintains precise alignment and geometry under cornering loads
• CNC machined T6061 Aluminum shells with 1/1000-inch precision
• FK Racing Bearings with self-lubricating Teflon liners for reduced friction
• Sold as a complete kit for one vehicle
• Engineered and manufactured in the USA
• Manufacturer Part Number: SPL RKB E36