The QA1 AM Series Endura rod ends are engineered specifically for weight reduction in high-performance applications without sacrificing durability. This male, left-hand threaded rod end is over 10% lighter than traditional three-piece aluminum designs while remaining the most wear-resistant aluminum option available.

Built with an aircraft-grade aluminum body, the AML10 features increased cross-sectional thickness for superior tensile strength and a red anodized finish for corrosion resistance. The internal components consist of a heat-treated 52100 bearing steel ball that is precision ground and hard chrome plated for smooth operation and longevity. A self-lubricating, injection-molded Nylon/PTFE race seals out dirt and debris while providing metal-to-metal support for heavy shock loads.

• Part Number: AML10
• Type: Male Left Hand (LH)
• Bore Size: .625in (5/8")
• Thread Size: 5/8-18
• Body Material: Red Anodized Aircraft Aluminum
• Ball Material: Hard Chrome Plated 52100 Bearing Steel (Heat Treated)
• Race Material: Self-Sealing Nylon/PTFE
• Construction: Maintenance-free, self-lubricating design

The QA1 9HT650B High Travel Spring is engineered for drivers demanding maximum suspension stroke and reduced unsprung weight. By utilizing a specialized high-tensile chrome silicon alloy wire, QA1 manufactures these 9-inch springs with a smaller wire diameter and fewer coils than standard designs. This results in a lighter spring that reacts faster to surface changes while offering significantly more travel before reaching coil bind.

Finished in a resilient black powder coat, this 2-1/2" I.D. spring is designed for consistent performance in high-stress environments. Every spring is manufactured in the USA and carries a lifetime guarantee to remain within 2% of its original free height and rate under normal operating conditions.

• Part Number: 9HT650B
• Inside Diameter: 2-1/2"
• Free Length: 9"
• Spring Rate: 650 lbs/in
• Material: High-tensile chrome silicon alloy
• Finish: Black powder coated
• Origin: Made in the USA

Optimize your suspension performance with the QA1 9HT550B High Travel Spring. These springs are engineered from a specially designed high-tensile chrome silicon alloy wire, allowing for a smaller wire diameter and fewer coils than traditional springs. This construction significantly reduces unsprung weight and allows the suspension to react faster to surface changes while providing increased travel before reaching coil bind.

Manufactured in the USA, each spring features a durable black powder-coated finish for superior corrosion resistance and longevity. QA1 backs these springs with a lifetime guarantee to remain within 2% of their original free height and rate under normal operating conditions.

• Manufacturer Part Number: 9HT550B
• Inside Diameter: 2.5 inches
• Free Length: 9 inches
• Spring Rate: 550 lbs/in
• Material: High-tensile chrome silicon alloy
• Finish: Black powder coated
• Manufacturing: Made in the USA

The QA1 9HT450B High Travel Spring is engineered for performance applications where suspension travel and weight reduction are critical. Manufactured in the USA from high-tensile chrome silicon alloy spring wire, these 2.5-inch I.D. springs feature a specialized design with a smaller wire diameter and fewer coils than standard springs. This construction significantly reduces unsprung weight and allows the suspension to react faster to surface changes.

By increasing the distance between the coils, these springs provide greater travel and minimize the risk of coil bind. Each spring is finished with a durable black powder coating for long-term corrosion resistance. QA1 provides a lifetime guarantee that these springs will remain within 2% of their original free height and rate under normal operating conditions.

• Inside Diameter: 2.5 inches
• Length: 9 inches
• Spring Rate: 450 lbs/in
• Material: High-tensile chrome silicon alloy
• Finish: Black powder coated
• Manufacturer Part Number: 9HT450B
• Origin: Made in the USA

The QA1 9HT400B High Travel Spring is engineered to provide maximum suspension travel while minimizing unsprung weight for faster shock reaction. Manufactured in the USA from high-tensile chrome silicon alloy spring wire, these springs feature a specialized design with a smaller wire diameter and fewer coils than standard alternatives. This construction increases the distance between coils to prevent coil bind and allows for a lighter overall component without sacrificing strength.

Each spring is finished with a durable black powder coating for superior corrosion resistance. QA1 ensures long-term reliability with a lifetime guarantee that the spring will remain within 2% of its original free height and rate under normal operating conditions. This makes them an ideal choice for racers and performance enthusiasts looking to optimize their coilover setup.

• Manufacturer Part Number: 9HT400B
• Inside Diameter: 2-1/2" (2.5")
• Free Length: 9"
• Spring Rate: 400 lbs/in
• Material: High-tensile chrome silicon alloy
• Finish: Black powder coated
• Origin: Made in the USA

This QA1 High Travel Spring (9HT250) is engineered to reduce unsprung weight while providing significantly more travel than standard designs. Manufactured in the USA from high-tensile chrome silicon alloy spring wire, these springs feature a smaller wire diameter and fewer coils. This specific construction allows the suspension to react faster and permits the spring to be compressed to coil-bind without affecting the spring rate or free height over time.

Each spring is cold wound, heat-treated, and shot-peened to ensure maximum durability and consistency. The ends are precision ground to ensure the spring sits square and maintains a straight, accurate line of force. Finished in a resilient silver powder coat, these 2.5-inch inner diameter springs are clearly marked with their free length and rate for easy identification during setup or tuning.

• Inner Diameter (ID): 2.5 inches
• Free Length: 9 inches
• Spring Rate: 250 lbs/in
• Material: High-tensile chrome silicon steel
• Manufacturing: Cold wound, heat treated, and shot peened
• Finish: Silver powder coated
• Ends: Squared and ground for consistent operation
• Manufacturer Part Number: 9HT250
• Guarantee: Lifetime guarantee to remain within 2% of original free height and rate

Fits 2021-2026 Ford F-150 2WD and 4WD models (all cab configurations).

The QA1 2-inch front drop spindles offer a straightforward, bolt-in solution to lower the center of gravity and improve the stance of your 2021-2026 F-150. These spindles are engineered to maintain proper suspension geometry while providing a fixed 2-inch drop. For enthusiasts seeking a fully adjustable setup, these spindles are designed to pair seamlessly with QA1 Pro Coil front kits and rear lowering components.

• Provides a 2-inch front drop while maintaining factory ride quality
• Direct bolt-in installation with no cutting or welding required
• Engineered for both 2WD and 4WD applications
• Fits all cab configurations including XL, XLT, Lariat, and Raptor
• Requires 22-inch or larger wheels for proper clearance
• Manufacturer Part Number: 9056-121

Secure your external canisters with the QA1 MOD Series shock absorber reservoir flat panel mount. Designed specifically for the nitrogen-charged canisters found on MOD Series shocks, this mounting solution provides a clean, professional finish while ensuring your reservoirs stay firmly attached during high-performance driving.

Construction features black anodized aluminum for corrosion resistance and durability. The flat panel design, combined with the 18-inch hose length standard on MOD Series canisters, offers significant flexibility for custom mounting locations within the chassis or engine bay. This kit simplifies installation by including all necessary hardware for a complete setup.

• Fits QA1 MOD Series shock external reservoirs
• Precision-machined flat panel configuration for versatile mounting
• Durable black anodized aluminum finish
• Includes all required mounting hardware
• Designed for canisters with 18-inch hose leads
• Manufacturer Part Number: 9039-308

This QA1 2.5-inch ID coilover spring spacer provides a precision solution for adjusting spring seat position or fine-tuning ride height. CNC-machined from 6061 aluminum, this spacer offers exactly 1 inch of spacing with a total overall height of 1.56 inches. The stackable design allows you to combine multiple spacers to meet specific suspension geometry or clearance requirements on your coilover assembly.

• Designed specifically for use with 2.5-inch ID coilover springs
• Provides 1-inch effective spacing
• Constructed from high-strength 6061 aluminum
• Clear anodized finish for superior corrosion and wear resistance
• Stackable architecture for customizable spacing options
• Overall spacer height: 1.56 inches
• Manufacturer Part Number: 9004-110

Specifically designed for all adjustable QA1 shocks and economy GM Pro Coil Systems, the QA1 7888-112 Ratchet Spanner Wrench and Thrust Bearing Kit provides the specialized tools needed for precise ride height tuning. This kit replaces standard adjustment methods with a high-leverage ratchet wrench and low-friction thrust bearings, ensuring smooth operation even under significant spring tension.

By installing the included needle thrust bearings between the coilover spring and the adjustment nut, you effectively eliminate suspension bind and reduce the physical effort required to rotate the collar. The ratcheting wrench provides better access in the cramped confines of a wheel well compared to traditional spanners, making it easier to dial in your suspension geometry at the track or in the garage.

• Manufacturer Part Number: 7888-112
• Compatibility: All adjustable QA1 shocks and economy GM Pro Coil Systems
• Spring Fitment: Sized for 2-1/2 inch (2.5") ID coilover springs
• Kit Components: (1) Ratchet-style spanner wrench and (2) thrust bearing sets
• Function: Eliminates spring-to-perch friction and prevents suspension bind
• Benefit: Simplifies ride height adjustments and protects hardware from galling

The QA1 7888-110 Spanner Wrench and Thrust Bearing Kit provides the essential tools and hardware needed for smooth, bind-free suspension tuning. This comprehensive kit is designed for use with all adjustable QA1 shocks and economy GM Pro Coil Systems equipped with 2-1/2 inch ID springs.

Installing the included thrust bearings between the spring and the adjustment nut eliminates the friction that causes suspension bind during height changes. This allows for significantly easier manual ride height adjustments, even while the suspension is under load. The heavy-duty spanner wrenches are specifically profiled to provide a secure grip on the adjustment collars, ensuring precise control without damaging the hardware.

• Manufacturer Part Number: 7888-110
• Designed for 2.5-inch (2-1/2") inner diameter (ID) springs
• Compatibility: Fits all adjustable QA1 shocks and economy GM Pro Coil Systems
• Reduces friction to eliminate suspension bind during adjustment
• Includes two spanner wrenches and two complete thrust bearing assemblies

Designed for universal compatibility with all coil-over shocks utilizing 2-1/2 inch inner diameter (ID) springs. This QA1 7888-109 Thrust Bearing Kit is a critical upgrade for any adjustable suspension setup, engineered to reduce the friction between the coil spring and the adjustment seat. By installing these needle-roller bearings, you eliminate the rotational bind that occurs during spring compression and decompression, ensuring the suspension moves more fluidly.

• Facilitates significantly easier ride height adjustments, even while the spring is under load
• Eliminates suspension bind for more consistent handling and spring performance
• Specifically sized for 2-1/2 inch ID springs
• Includes necessary thrust bearings and washers for a pair of shocks
• Manufacturer Part Number: 7888-109

Fits select 1963-1974 Chevrolet C10 Pickup (Small Block/Big Block Chevy engines).

The QA1 7740-375 Engine Mount Kit is specifically engineered to facilitate the installation of Small Block (SBC) or Big Block (BBC) Chevrolet engines into 1963-1974 C10 trucks. This kit is designed exclusively for use with the QA1 C10 front crossmember (K-member) system, ensuring proper engine placement and alignment within the chassis.

Manufactured in the USA, these mounts provide a robust solution for engine swaps, offering the structural integrity needed for high-performance applications while maintaining the geometry required for a seamless fit with QA1 suspension components.

• Manufacturer Part Number: 7740-375
• Engine Compatibility: Small Block Chevy (SBC) and Big Block Chevy (BBC)
• Requirement: For use only with QA1 C10 crossmember
• Manufacturing: Made in the USA

Fits 1963-1974 Chevrolet C10 Pickup Base. This QA1 LS Engine Mount Kit (7740-374) is engineered to simplify the installation of LS-series engines into early C10 trucks. These mounts are designed to provide precise engine placement and multiple swap options when upgrading your classic pickup's drivetrain.

• Designed exclusively for use with QA1 C10 crossmembers and K-members
• Facilitates clean LS engine swaps into 1963-1974 Chevrolet C10 chassis
• Precision-engineered for strength and alignment
• Proudly made in the USA
• Manufacturer Part Number: 7740-374

Note: This kit is required for LS engine installation on vehicles equipped with QA1 C10 suspension systems and is not compatible with factory engine crossmembers.

Fits select 1966-1976 Dodge and Plymouth A-Body, B-Body, and E-Body vehicles including Challenger, Charger, Dart, and Barracuda. This QA1 Big Block Engine Mount Kit is engineered specifically for enthusiasts performing big block engine swaps into classic Mopar chassis equipped with QA1 front suspension systems.

These mounts are designed to provide precise engine placement and structural integrity when used in conjunction with QA1 Mopar K-members. By utilizing these application-specific brackets, you ensure proper driveline alignment and clearance for your big block powerplant. Each kit is manufactured in the USA to high standards of durability and fitment.

• Designed exclusively for use with QA1 Mopar front suspension systems and K-members
• Engineered for Big Block Mopar engine swaps
• Compatible with 1967-1976 A-Body, 1966-1972 B-Body, and 1970-1974 E-Body platforms
• Includes necessary mounting hardware for the engine-to-K-member interface
• Proudly made in the USA
• Manufacturer Part Number: 7740-333

Fits 1965-1979 Ford F-100 and F-150 trucks equipped with QA1 front suspension systems.

These QA1 engine mounts are engineered specifically for enthusiasts swapping a Ford Modular or Coyote engine into a classic 1965-1979 F-100 or F-150. Designed to work exclusively with QA1 F-100 front coil-over conversion systems and K-members, these brackets ensure proper engine placement and structural integrity. The modular design allows these mounts to be interchangeable with other QA1 F-100 engine brackets, providing a simplified path for future engine swaps without requiring a complete teardown of the front suspension.

• Specifically designed for Ford Modular and Coyote engine platforms
• Compatible with QA1 F-100 front suspension K-members
• Interchangeable bracket system allows for easy future engine changes
• Precision-engineered for a bolt-in fit with QA1 systems
• Proudly made in the USA
• Manufacturer Part Number: 7740-253

Fits 1965-1979 Ford F-100 and F-150 trucks equipped with FE-series engines.

These QA1 engine mounts are engineered specifically for use with QA1 F-100 front coil-over suspension systems and K-members. Designed for enthusiasts performing an engine swap or modernizing their classic Ford truck chassis, these mounts provide the precise alignment and structural integrity required for high-performance applications.

Built for versatility, these brackets are interchangeable with other QA1 F-100 engine mount options. This modular design allows you to easily switch engine platforms in the future without replacing the entire crossmember assembly. Each mount is manufactured in the USA to ensure strict quality standards and a perfect fit with your existing QA1 hardware.

• Designed specifically for Ford FE-series engines
• Required for use with QA1 F-100 front suspension/K-members
• Interchangeable design facilitates easy future engine swaps
• Heavy-duty construction for reliable engine support
• Made in the USA
• Manufacturer Part Number: 7740-251

The QA1 63 Series is a sealed, non-rebuildable version of the popular 62 Series, specifically engineered for coil-over applications on both dirt and asphalt tracks. This threaded-body twin tube shock is designed to provide exceptional driver feel and maximum traction, excelling in low-grip track conditions where consistent tire contact is essential.

Built to satisfy the requirements of sanctioning bodies and spec-shock series, the 63 Series (MPN 6375-650) is a cost-effective solution for Late Model and Modified racers without sacrificing performance. Every unit is individually dyno-tested and serialized at QA1’s facility to ensure it meets strict valving tolerances before reaching your vehicle.

• Sealed aluminum threaded body construction for reduced unsprung weight
• Twin tube design for superior grip and feel across varying track surfaces
• 7-inch stroke length with precision 5-650 valving
• Individually dyno-tested and serialized for guaranteed accuracy
• Non-rebuildable spec shock design for cost-controlled racing
• Designed for Late Model and Modified chassis
• Made in the USA

Fits 1973-1986 Chevrolet C10 Pickup and C10 Suburban models.

Improve the stability and cornering performance of your truck with the QA1 52899 rear sway bar. This 1-1/4 inch bar is engineered to significantly reduce body roll, providing a flatter, more controlled ride. Unlike heavy solid bars, this unit is manufactured from lightweight 4130 hollow chromoly steel, offering high-tensile strength and durability without adding unnecessary unsprung weight to your rear suspension.

Each bar is precision CNC formed to ensure a perfect fit and features a durable black powder coat finish for long-term corrosion resistance. The kit is designed for a straightforward bolt-on installation and includes greasable polyurethane bushings along with high-quality plated hardware for a complete refresh.

• Material: Lightweight 4130 hollow chromoly steel
• Diameter: 1-1/4" (1.25 inches)
• Finish: Durable black powder coat
• Installation: Precision CNC formed for direct bolt-on fitment
• Included Hardware: Greasable polyurethane bushings and plated hardware
• Manufacturing: Made in the USA
• MPN: 52899

Fits 1963-1972 Chevrolet C10 Pickup Base.

Improve the cornering flat-ness and chassis stability of your classic truck with the QA1 52897 Rear Sway Bar. Engineered specifically to integrate with the QA1 1963-1972 C10 Rear Suspension System, this 1-1/4 inch sway bar significantly reduces body roll during aggressive maneuvers and lane changes by better distributing cornering loads.

Constructed from lightweight, hollow 4130 chromoly steel, this bar provides the torsional rigidity of a much heavier solid bar without adding excessive unsprung weight. Each bar is precision CNC formed to ensure accurate fitment and finished in a durable black powder coat for long-lasting corrosion resistance. The kit comes complete with greasable polyurethane bushings to maintain response while minimizing noise and vibration.

• Material: High-strength 4130 hollow chromoly steel
• Diameter: 1-1/4 inch (1.25")
• Finish: Durable black powder coat
• Bushings: Greasable polyurethane for smooth operation
• Hardware: Includes all necessary plated mounting hardware
• Compatibility: Designed exclusively for use with QA1 C10 Rear Suspension Systems
• Origin: Made in the USA

Fits select 1963-1987 Chevrolet C10, C20, R10, and R10 Suburban.

Improve your truck's handling and stability with the QA1 1-3/8-inch front sway bar. Engineered to significantly reduce body roll during cornering, this upgrade provides a more controlled and predictable driving experience by increasing the roll stiffness of the front suspension. The bar is finished in a durable black powder coat for superior corrosion resistance and comes complete with all necessary mounting hardware for a straightforward bolt-on installation.

• 1-3/8 inch bar diameter specifically sized for classic GM trucks
• Reduces body roll and improves cornering response
• Durable black powder coat finish for long-term protection
• Includes high-quality mounting hardware
• Made in the USA
• Manufacturer Part Number: 52896

Fits select 1973-1979 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac A-Body, G-Body, and X-Body vehicles.

The QA1 Front Sway Bar is engineered to significantly reduce body roll and improve the cornering performance of your classic GM vehicle. Unlike heavy solid bars, this 1-3/8 inch sway bar is manufactured from lightweight 4130 hollow-core chromoly steel, providing maximum torsional rigidity without adding unnecessary front-end weight.

Every bar is CNC formed to ensure precise fitment and a true bolt-on installation using factory mounting locations. The assembly is finished in a durable gloss black powder coat for long-term corrosion resistance and includes premium greasable graphite polyurethane bushings to eliminate the deflection common with aged factory rubber units.

• Manufactured from 1-3/8 inch hollow-core 4130 chromoly steel
• CNC formed for a precise, vehicle-specific fit
• Gloss black powder coated finish for maximum durability
• Includes greasable graphite polyurethane bushings and plated hardware
• Direct bolt-on installation to factory points
• Made in the USA
• Manufacturer Part Number: 52893

Fits 1979-1993 Ford Mustang models, including GT, LX, SVO, and Cobra. This QA1 Front Sway Bar (MPN 52891) is engineered to significantly reduce body roll and sharpen cornering response by increasing the roll stiffness of your Fox Body suspension.

Constructed from lightweight, hollow-core 4130 Chromoly steel, this 1.25-inch diameter bar provides maximum structural rigidity without the weight penalty of solid bars. Each unit is CNC-formed to ensure a precise, bolt-on fitment to factory mounting locations. The kit includes adjustable end links, allowing you to fine-tune the suspension for specific street or track setups and eliminate preload.

• Manufactured from high-strength 4130 Chromoly hollow-core steel
• 1-1/4 inch diameter for increased roll stiffness
• Adjustable end links for precise handling tuning
• Greasable graphite polyurethane bushings reduce friction and noise
• Gloss black powder-coated finish for superior corrosion resistance
• Includes high-quality plated installation hardware
• Made in the USA

Fits 1994-2004 Ford Mustang (Base, GT, Mach 1, and SVT Cobra).

Improve your vehicle's cornering flat-out and sharpen steering response with the QA1 Front and Rear Sway Bar Kit (MPN 52886). This kit is engineered to significantly reduce body roll during hard cornering by increasing chassis rigidity. The 1-1/4" front sway bar is constructed from lightweight, hollow-core 4130 Chromoly steel, offering superior strength without unnecessary weight. The 1" rear sway bar is manufactured from heavy-duty, solid-core 1045 cold-formed steel to provide the stiffness required for high-performance handling.

Both bars are precision CNC-formed to ensure a direct bolt-on installation to factory mounting points. The kit includes adjustable end links, allowing for precise fine-tuning of roll stiffness to match your driving style. Every component is finished in a durable gloss black powder coat for long-term corrosion resistance and includes greasable graphite polyurethane bushings for smooth, quiet operation.

• Front Bar: 1-1/4" diameter hollow-core 4130 Chromoly steel
• Rear Bar: 1" diameter solid-core 1045 cold-formed steel
• Adjustable end links for custom roll stiffness tuning
• Greasable graphite polyurethane bushings and plated hardware included
• Corrosion-resistant gloss black powder coated finish
• Designed for a true bolt-on installation
• Proudly Made in the USA
• Manufacturer Part Number: 52886

Fits select 1979-2004 Ford Mustang models (Base, GT, LX, Mach 1, and SVT Cobra).

Engineered to reduce body roll and improve cornering stability, the QA1 Rear Sway Bar is a direct-fit upgrade for Fox Body and SN95 Mustang platforms. Each bar is precision CNC-formed from 1-inch solid-core 1045 cold-formed steel to ensure maximum torsional rigidity and a true bolt-on installation. Unlike basic replacements, this kit includes adjustable end links, allowing you to fine-tune your suspension geometry for better handling response.

• Material: 1-inch solid-core 1045 cold-formed steel for superior strength
• Finish: Durable gloss black powder coat to resist corrosion and road debris
• Hardware: Includes greaseable graphite polyurethane bushings, U-bolts, and plated mounting hardware
• Installation: Precision CNC forming ensures fitment to factory mounting points
• Adjustability: Features adjustable end links for precise suspension tuning
• Manufacturing: Made in the USA
• MPN: 52885

Fits 1963-1974 Chevrolet C10 Pickup Base. Specifically engineered for trucks equipped with the QA1 Tubular Crossmember, this 1-3/8-inch front sway bar significantly reduces body roll and improves cornering stability. By increasing front roll stiffness, this kit helps maintain a flatter tire contact patch for better grip and more predictable handling during transitions.

Constructed for long-term durability and ease of maintenance, the bar features a resilient black powder-coated finish to resist road debris and corrosion. This kit is designed for a direct bolt-on fitment when paired with the corresponding QA1 chassis components, ensuring a simplified installation process.

• Front location with 1-3/8-inch diameter for increased roll control
• Specifically designed for use with QA1 Tubular Crossmembers
• Durable black powder coat finish for superior corrosion resistance
• Complete kit includes all necessary mounting hardware
• Proudly made in the USA
• Manufacturer Part Number: 52883

Fits 1978-1988 GM G-Body vehicles including Buick Regal, Chevrolet El Camino, Malibu, and Monte Carlo, GMC Caballero, Oldsmobile Cutlass, and Pontiac Bonneville, Grand Am, Grand Prix, and LeMans.

The QA1 52877 front sway bar is engineered to significantly reduce body roll and improve cornering stability for the GM G-Body platform. Manufactured from 1-3/8 inch lightweight hollow-core 4130 chromoly steel, this bar provides high torsional stiffness and maximum durability without the weight penalty of a solid bar. Each unit is CNC formed to ensure a precise, true bolt-on installation using factory mounting points.

This kit comes complete with greasable graphite-polyurethane bushings and high-quality plated hardware for long-term performance and quiet operation. A durable gloss black powder-coated finish is applied to resist corrosion and withstand harsh road conditions.

• Part Type: Front Sway Bar
• Diameter: 1-3/8 inch
• Material: 4130 Chromoly hollow-core steel
• Finish: Gloss black powder coat
• Bushings: Greasable graphite polyurethane
• Manufacturing: CNC formed for precision fitment
• Origin: Made in the USA
• Manufacturer Part Number: 52877

Fits select 1964-1972 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac A-Body vehicles including Chevelle, GTO, Cutlass, El Camino, and Skylark.

Drastically reduce body roll and improve the cornering stability of your GM A-Body with this QA1 Sway Bar Kit. This matched set is engineered to provide a balanced handling upgrade by replacing flexible factory bars with precision CNC-formed components. The front bar is constructed from 1-1/4 inch hollow-core 4130 Chromoly steel, offering high torsional rigidity without the weight penalty of solid steel. For the rear, QA1 utilizes a 1 inch solid-core 1045 cold-formed steel bar to provide the necessary stiffness for improved rear-end tracking and predictable handling.

This kit is designed as a direct bolt-on solution, utilizing factory mounting points for a straightforward installation. Both bars are finished in a durable gloss black powder coat for superior corrosion resistance and include greasable graphite polyurethane bushings that eliminate the deflection common with aged rubber units.

• Front Sway Bar: 1-1/4 inch (31.75mm) diameter hollow-core 4130 Chromoly steel
• Rear Sway Bar: 1 inch (25.4mm) diameter solid-core 1045 cold-formed steel
• Finish: High-gloss black powder coating for lasting protection
• Bushings: Greasable graphite polyurethane for quiet, precise performance
• Hardware: Includes high-quality plated hardware and U-bolts for the rear bar
• Installation: True bolt-on design with CNC-formed precision
• Origin: Made in the USA
• Manufacturer Part Number: 52873

Fits select 1964-1972 GM A-Body vehicles including the Chevrolet Chevelle, El Camino, and Monte Carlo; Pontiac GTO, LeMans, and Grand Prix; Oldsmobile 442 and Cutlass; and Buick Skylark and Special.

Upgrade your classic GM A-Body suspension with a QA1 Rear Sway Bar, engineered to significantly reduce body roll and improve cornering stability. Unlike hollow alternatives, this bar is manufactured from 1045 solid-core cold-formed steel for maximum torsional rigidity and consistent performance. Precision CNC forming ensures the bar follows the factory chassis contours for a true bolt-on installation that replaces or adds a rear sway bar to your factory control arms.

Each kit comes complete with greaseable graphite polyurethane bushings that eliminate the deflection common in factory rubber, providing more immediate steering response. The assembly is finished in a durable gloss black powder coat to resist corrosion and road debris for long-term durability on the street or track.

• Diameter: 1 Inch
• Material: 1045 Solid-Core Cold Formed Steel
• Finish: Gloss Black Powder Coat
• Bushing Type: Greaseable Graphite Polyurethane
• Hardware: Includes U-bolts and high-quality plated mounting hardware
• Installation: True bolt-on design
• Manufacturer Part Number: 52871
• Origin: Made in the USA

Fits select 1964-1972 GM A-Body models, including Chevrolet Chevelle and El Camino, Pontiac GTO and LeMans, Oldsmobile 442 and Cutlass, and Buick Skylark.

Improve the cornering performance and stability of your classic GM A-Body with this QA1 front sway bar. Engineered to significantly reduce body roll during hard cornering, this bar provides a flatter, more controlled feel without the weight penalty of a solid bar. It is manufactured from 1-1/4 inch hollow-core 4130 chromoly steel, offering superior torsional stiffness and durability.

Every bar is CNC formed to ensure precise fitment and a true bolt-on installation using factory mounting locations. The assembly is finished in a gloss black powder coat for long-term corrosion resistance and includes greasable graphite polyurethane bushings to minimize deflection and maintain responsive handling.

• Diameter: 1-1/4 inch (1.25")
• Material: Lightweight 4130 hollow-core chromoly steel
• Finish: Gloss black powder coat
• Bushings: Greasable graphite polyurethane
• Hardware: High-quality plated mounting hardware included
• Installation: Direct bolt-on design
• Manufacturer Part Number: 52870
• Made in the USA