Fits select 1955-1957 Chevrolet Bel Air, One-Fifty Series, Two-Ten Series, and Sedan Delivery models.

Ridetech Front Lower StrongArms provide a significant upgrade over factory stamped steel arms, specifically engineered for use with Shockwave or CoilOver suspension systems. These tubular control arms optimize suspension geometry and eliminate the flex common in original components, providing a more stable and predictable steering feel during cornering.

• Manufactured from heavy-wall tubular steel for maximum strength and durability
• Pre-installed with premium ball joints and cross shafts for a direct bolt-on installation
• Injection-molded Delrin bushings eliminate deflection and stiction for smoother suspension travel
• Integrated shock mounts designed to accept Ridetech CoilOvers or Shockwaves
• Finished in a durable satin black powder coat for long-lasting corrosion resistance
• Manufacturer Part Number: 11012899

Each set includes a pair of lower control arms with all necessary hardware for a complete installation on the factory mounting points.

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

Rancho Performance upper control arms are engineered to correct suspension geometry on leveled and lifted Toyota Tacoma trucks. By maintaining the ball joint at the proper angle, these arms reduce stress on front-end components and provide the additional wheel travel and caster needed for lifted applications. Each arm is constructed from heavy-duty tubular steel and finished in a durable black powder coat for maximum corrosion resistance.

Designed for long-term durability and quiet operation, these control arms feature OE-style rubber bushings and preinstalled, replaceable ball joints. Integrated zerk fittings allow for easy maintenance and greasing. This direct-fit, bolt-on kit includes all necessary hardware to replace your factory upper control arms.

• Part Number: RS64901
• Corrects ball joint angles for leveled and lifted suspension heights
• Heavy-duty tubular steel construction with black powder-coat finish
• Includes OE-style rubber bushings for quiet operation
• Serviceable, replaceable ball joints with integrated zerk fittings
• Direct-fit, bolt-on design for straightforward installation
• Includes all required mounting hardware
• Backed by a limited lifetime warranty

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

The QA1 Level 1 Drag Kit (DK31-FMM4) is a foundational suspension upgrade engineered specifically for the 1979-2004 Mustang chassis. Designed to improve weight transfer and traction at the drag strip, this kit provides the essential geometry and component upgrades needed to enhance launch consistency and straight-line performance on both Fox Body and SN95/New Edge platforms.

• Manufacturer Part Number: DK31-FMM4
• Application: Drag racing suspension upgrade
• Compatibility: Engineered for factory mounting locations
• Configuration: Level 1 kit (shocks and struts not included)
• Performance Focus: Optimized weight transfer and chassis reaction

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

The QA1 Level 1 Drag Kit is a suspension upgrade solution designed for Ford Mustang owners looking to improve straight-line performance and launch consistency. This kit focuses on optimizing weight transfer to the rear wheels, helping to reduce 60-foot times and improve traction whether on the street or the drag strip.

This Level 1 system serves as a foundational performance upgrade for entry-level drag racing. Note that this specific configuration (MPN: DK31-FMM3) is provided without shocks or struts, allowing builders the flexibility to choose their own dampening components or retain their current setup.

• Direct fitment for 1979-2004 Ford Mustang chassis
• Engineered specifically for drag racing and street/strip applications
• Improves weight transfer and chassis reaction during launch
• Manufacturer Part Number: DK31-FMM3
• Shocks and struts are not included in this kit

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

The QA1 Level 1 Drag Kit is a foundational suspension upgrade for Ford Mustang owners looking to improve straight-line performance and consistency at the track. Covering both Fox Body and SN95 platforms, this kit focuses on optimizing chassis geometry and reducing front-end weight to facilitate better weight transfer during hard launches.

As a Level 1 system, this kit provides a bolt-on solution to enhance traction and stability without the complexity of a full-race setup. This package is specifically designed for builders who prefer to customize their dampening, as it does not include shocks or struts, allowing for complete control over your choice of adjustable dampers.

• Manufacturer Part Number: DK31-FMM2
• Performance Series: Level 1 Drag Kit
• Application: Drag Racing / Straight-line Performance
• Fitment: 1979-2004 Ford Mustang (all submodels)
• Shock Absorbers: Not included (sold separately)
• Compatible with factory mounting points for straightforward installation

Fits select 1982-2004 Chevrolet S10 and GMC Sonoma models. QA1 Street Performance Upper Control Arms are engineered to modernize the front-end geometry of your truck, making them the ideal upgrade for cruisers and daily drivers. These arms are specifically configured for use with QA1 Pro Coil Systems featuring double-shear lower mounting. Constructing the arms from high-strength tubing and billet aluminum cross shafts results in one of the lightest control arm kits available without compromising durability.

Each arm is robotically welded and finished with a high-quality powder coat for long-lasting corrosion resistance. The integrated polyurethane bushings effectively isolate road noise for a smoother ride while maintaining the stiffness required for precise handling. These kits come equipped with QA1 patented Ultimate Ball Joints, which offer superior strength compared to factory units and are designed for long-term serviceability.

• Manufacturer Part Number: 52767
• Adds 3-4 degrees of caster and 0.5 to 1 degree of negative camber (when used as a pair)
• Lightweight high-strength tubing with billet aluminum cross shafts
• Low-friction polyurethane bushings for reduced NVH and improved response
• Easy bolt-in installation to factory mounting points
• Includes integrated high-strength QA1 Ultimate ball joints
• Proudly made in the USA

Fits 1982-2004 Chevrolet S10 and GMC Sonoma models.

The QA1 52766 Street Performance Front Lower Control Arm Kit is a high-strength suspension upgrade designed for S-series trucks used for cruising and long-distance driving. These arms are specifically configured for compatibility with QA1 Pro Coil Systems, featuring a double shear lower mounting point that provides a significant increase in mounting security and durability compared to standard single-point designs.

Constructed from high-strength steel tubing with billet aluminum cross shafts, this kit offers an exceptional strength-to-weight ratio. The robotic welds and durable powder-coated finish ensure long-term resistance to the elements. To maintain ride quality, QA1 utilizes polyurethane bushings that isolate road noise and vibration for a smoother cabin experience while remaining stiff enough to provide sharp, predictable handling. This kit is designed to correct outdated factory geometry, offering 3-4 degrees of caster and 0.5 to 1 degree of negative camber when used as a complete set.

• Manufacturer Part Number: 52766
• Material: High-strength steel tubing with billet aluminum cross shafts
• Bushings: Low-friction polyurethane for noise isolation and stiffness
• Mounting: Double shear lower mount for QA1 Pro Coil Systems
• Geometry: Adds 3-4° caster and 0.5-1° negative camber
• Integrated high-quality ball joints are stronger than factory units
• Designed for use with QA1 patented Ultimate Ball Joints
• Simple bolt-in installation with no modifications required
• Made in the USA

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

The QA1 Street Performance Front Upper Control Arm Kit is engineered to modernize the front-end geometry of your G-Body. Designed for enthusiasts who prioritize cruising and long-distance drivability, these arms provide a significant improvement in steering feel and stability without compromising ride quality. The tubular design is robotically welded for precision and finished in a durable black powder coat for long-term corrosion resistance.

These arms are specifically designed to add 3-4 degrees of caster and 0.5 to 1 degree of negative camber when used as a complete set, correcting the limited factory alignment range. Each arm features a billet aluminum cross shaft and low-friction polyurethane bushings that isolate road noise while maintaining the stiffness required for responsive handling. The integrated high-quality ball joints are stronger than factory units and are designed for a long service life.

• Adds 3-4 degrees of caster and 0.5 to 1 degree of negative camber
• High-strength tubular steel construction with billet aluminum cross shafts
• Low-friction polyurethane bushings for improved response and noise isolation
• Integrated heavy-duty ball joints replace weaker OE components
• Optimized strength-to-weight ratio for reduced unsprung mass
• Configured for use with QA1 Pro Coil Systems
• Simple bolt-in installation to factory mounting points
• Made in the USA
• Manufacturer Part Number: 52765

Fits select 1978-1988 GM G-Body vehicles, including Buick Regal, Chevrolet Malibu, Monte Carlo, and El Camino, GMC Caballero, and Pontiac Bonneville and Grand Prix. This QA1 Street Performance Lower Control Arm Kit (MPN 52764) is engineered to modernize front-end geometry for improved handling and cruise comfort.

Constructed from high-strength tubing with billet aluminum cross shafts, these arms are designed for use specifically with QA1 Pro Coil Systems featuring double shear lower mounting. The robotic welds and durable powder-coated finish ensure long-lasting structural integrity and corrosion resistance. To improve alignment specs, these arms are designed to provide an additional 3-4 degrees of caster and 0.5 to 1 degree of negative camber when used with matching upper arms.

• Direct bolt-in installation for factory mounting points
• High-strength steel tubing and billet aluminum cross shafts for optimized strength-to-weight ratio
• Polyurethane bushings to isolate road noise while maintaining suspension stiffness
• Integrated high-quality ball joints designed for increased strength and service life
• Configured for double shear lower mounting on QA1 Pro Coil systems
• Made in the USA
• Manufacturer Part Number: 52764

Fits select 1964-1972 GM A/G-Body vehicles, including Chevrolet Chevelle, El Camino, Monte Carlo, Pontiac GTO, and Oldsmobile Cutlass.

QA1 Street Performance Lower Control Arms are the ideal suspension upgrade for enthusiasts who prioritize ride quality and stability during long-distance cruising. These arms are specifically configured for compatibility with QA1 Pro Coil Systems, utilizing a double shear lower mounting point to ensure maximum strength and component security.

Built from high-strength tubing paired with billet aluminum cross shafts, these arms are significantly lighter than factory stamped-steel components while offering superior durability. Each arm is robotically welded and finished with a high-quality powder coating for corrosion resistance. To improve handling without sacrificing comfort, QA1 uses low-friction polyurethane bushings that isolate road noise while maintaining a stiff, responsive feel. This kit also features integrated ball joints that are stronger than OE units, providing a longer service life and improved safety.

• Manufacturer Part Number: 52737
• Engineered for QA1 Pro Coil Systems with double shear lower mounting
• Corrects outdated front-end geometry for better tracking and tire contact
• Adds 3-4° of caster and 0.5° to 1° of negative camber (when paired with upper arms)
• Tubular construction with billet aluminum cross shafts for optimized strength-to-weight ratio
• High-quality polyurethane bushings for reduced deflection
• Includes high-strength integrated ball joints
• Made in the USA

Fits select 1964-1972 GM A-Body and G-Body vehicles, including Buick Skylark, Chevrolet Chevelle, El Camino, Monte Carlo, Oldsmobile Cutlass, and Pontiac GTO/LeMans.

The QA1 Street Performance Upper Control Arm Kit is engineered to correct outdated front-end geometry on classic GM A and G-Body platforms. These arms are specifically configured for use with QA1 Pro Coil Systems featuring double-shear lower mounting. By optimizing the suspension's pivot points, these arms are designed to add 3 to 4 degrees of caster and 0.5 to 1 degree of negative camber when installed together, significantly improving directional stability and cornering grip over factory settings.

Built for the rigors of street performance and long-distance cruising, these arms utilize high-strength tubing paired with billet aluminum cross shafts to achieve a superior strength-to-weight ratio. Each arm is robotically welded and finished with a durable powder coat. To ensure a comfortable ride without sacrificing precision, QA1 utilizes low-friction polyurethane bushings that isolate road noise while maintaining the stiffness required for responsive handling. The integrated high-quality ball joints provide increased strength and service life compared to original equipment components.

• Manufacturer Part Number: 52722
• Compatibility: Configured for QA1 Pro Coil Systems with double shear lower mounting
• Geometry Correction: Adds 3-4° caster and 0.5-1° negative camber
• Construction: High-strength tubing with billet aluminum cross shafts
• Bushings: Low-friction polyurethane for noise isolation and stiffness
• Installation: Easy bolt-in design
• Origin: Made in the USA

Fits 1971-1976 Chevrolet Caprice and Impala models across all submodels including Classic, Estate, and Sport. This QA1 Big Wheel Street Performance Lower Control Arm Kit is engineered to modernize the handling characteristics of your GM B-Body. By correcting outdated factory front-end geometry, this kit provides the stability and alignment precision required for street performance applications, particularly those utilizing larger wheel diameters.

Constructed with an optimized strength-to-weight ratio, these arms are designed to withstand the loads of performance driving without adding unnecessary bulk. The kit features low-friction bushings for smooth suspension articulation and is specifically designed for use with QA1 patented Ultimate Ball Joints. This 100% bolt-in solution replaces your worn OE components with no cutting or welding required.

• Manufacturer Part Number: 52721
• Compatible with QA1 Ultimate Ball Joints
• Corrects factory front-end geometry for improved handling
• Low-friction bushings reduce suspension bind
• High-strength, lightweight tubular construction
• Simple bolt-in installation to factory mounting points
• Proudly Made in the USA

Fits select 1970-1996 GM A-Body, B-Body, F-Body, and X-Body vehicles including Chevrolet Camaro, Caprice, and Impala SS, Pontiac Firebird, and Buick Roadmaster.

QA1 Street Performance Front Lower Control Arms are engineered to modernize the handling of your classic GM platform. These arms replace weak factory stamped steel components with high-strength tubular steel and billet aluminum cross shafts, offering a superior strength-to-weight ratio. Designed specifically for street use, cruising, and long-distance driving, they utilize polyurethane bushings to isolate road noise while maintaining the stiffness required for precise cornering and improved steering response.

These arms are specifically configured for use with QA1 Pro Coil Systems featuring a double-shear lower shock mount. By correcting outdated front-end geometry, these arms are designed to add 3-4 degrees of caster and 0.5 to 1 degree of negative camber when used in conjunction with QA1 upper control arms, significantly improving high-speed stability and tire contact during cornering.

• Optimized Geometry: Corrects factory suspension angles for better handling and stability.
• High-Strength Construction: Robotically welded tubular steel with a durable black powder-coated finish.
• Billet Aluminum Cross Shafts: Provides a lightweight yet rigid mounting point for the suspension.
• Integrated Ball Joints: Includes QA1 Ultimate Ball Joints for increased strength and long-term serviceability.
• Polyurethane Bushings: Delivers a smooth ride by isolating NVH while reducing deflection under load.
• Installation: Direct bolt-in design requiring no modifications to the factory chassis.
• Manufacturer Part Number: 52720
• Origin: Made in the USA

Fits 1971-1974 Buick Apollo and Pontiac Ventura.

QA1 Street Performance Front Lower Control Arms are engineered to modernize the suspension geometry of your classic GM X-Body. These arms are specifically configured for use with QA1 Pro Coil Systems featuring double shear lower mounting points. Constructed from high-strength steel tubing paired with billet aluminum cross shafts, this kit offers a significant weight reduction over factory stamped-steel components while increasing overall rigidity and durability.

Designed for enthusiasts who prioritize both ride quality and handling, these arms utilize polyurethane bushings to isolate road noise while maintaining the stiffness required for precise steering response. The integrated ball joints are significantly stronger than OE units and are designed for long-term service. When installed, these arms are designed to add 3-4 degrees of caster and 0.5 to 1 degree of negative camber to correct outdated front-end geometry for better tire contact and cornering stability.

• Direct bolt-in installation using factory mounting locations
• Lightweight high-strength tubing and billet aluminum cross shafts
• Specifically configured for QA1 Pro Coil Systems with double shear lower mounting
• Adds 3-4° caster and 0.5-1° negative camber for improved handling
• Low-friction polyurethane bushings for a smooth, quiet ride
• Robotically welded and finished in a durable black powder coat
• Compatible with QA1 patented Ultimate Ball Joints
• Made in the USA
• Manufacturer Part Number: 52719

Fits select 1970-1996 GM F-Body, A-Body, X-Body, and B-Body models including Chevrolet Camaro, Caprice, Impala, and Pontiac Firebird.

QA1 Street Performance upper control arms are engineered to modernize the front suspension geometry of classic GM platforms. Designed primarily for street use and long-distance cruising, these arms are configured for QA1 Pro Coil Systems with double shear lower mounting. The combination of high-strength steel tubing and billet aluminum cross shafts results in a lightweight assembly with significantly improved strength and durability over factory components.

These arms are designed to add 3-4 degrees of caster and 0.5 to 1 degree of negative camber to improve tire contact and steering response. They feature polyurethane bushings to isolate road noise for a comfortable ride while providing the necessary stiffness for improved handling. Each kit is robotically welded, powder-coated, and include stronger-than-stock integrated ball joints for long-term service.

• Manufacturer Part Number: 52718
• Adds 3-4° caster and 0.5-1° negative camber when used as a kit
• High-strength steel tubing with billet aluminum cross shafts
• Low-friction polyurethane bushings for noise isolation and ride quality
• Designed for use with QA1 Pro Coil Systems (double shear mounting)
• Compatible with QA1 patented Ultimate Ball Joints
• Durable high-quality powder coat finish
• Easy bolt-in installation with no fabrication required
• Made in the USA

Fits select 1967-1974 Chevrolet Camaro, Chevy II, Nova, Pontiac Firebird, Ventura, Buick Apollo, and Oldsmobile Omega.

QA1 Street Performance upper control arms are engineered to modernize the front-end geometry of classic GM F-Body and X-Body platforms. These arms are the ideal solution for enthusiasts who prioritize ride quality during long-distance cruising while demanding improved handling characteristics. By correcting outdated factory geometry, these arms provide significantly better tire contact patches and steering response.

Constructed from high-strength tubing and paired with precision-machined billet aluminum cross shafts, these arms offer a superior strength-to-weight ratio. Each unit is robotically welded for consistent penetration and finished with a durable powder coat for long-term corrosion resistance. Low-friction polyurethane bushings are utilized to isolate road noise and vibration, ensuring a smooth ride without the deflection found in factory rubber bushings.

• Geometry Correction: Adds 3-4 degrees of caster and 0.5 to 1 degree of negative camber (when used as a complete kit).
• Construction: High-strength steel tubing with billet aluminum cross shafts.
• Bushings: Low-friction polyurethane for improved stiffness and noise isolation.
• Ball Joints: Includes high-quality integrated ball joints for increased strength and service life.
• Compatibility: Configured for use with QA1 Pro Coil Systems.
• Manufacture: Made in the USA.
• Part Number: 52717

Fits select 1999-2006 Chevrolet Silverado 1500 and GMC Sierra 1500 2WD models with coil spring front suspension.

Correct your front-end geometry and gain much-needed strength with the QA1 Tubular Upper Control Arm Kit (MPN: 52626). Designed specifically for "New Body Style" (NBS) trucks that have been lowered or built for performance, these arms provide increased caster to improve straight-line stability and steering feel. The tubular design offers superior rigidity compared to factory stamped steel arms while providing additional clearance for coil-over conversions and other suspension upgrades.

These arms are a direct bolt-in replacement for the OEM units and come fully assembled with high-quality ball joints and bushings pre-installed for a straightforward installation. They are compatible with factory spindles as well as QA1 drop spindles (Part Number: 9056-120). Each kit is manufactured in Lakeville, Minnesota and finished in a durable black powder coat.

• Improved caster geometry for better tracking and cornering stability
• Stronger and lighter tubular steel construction compared to stock stamped units
• Durable black powder coat finish for long-lasting corrosion resistance
• Direct bolt-on installation using factory mounting points
• Pre-installed ball joints and bushings for reduced install time
• Proudly made in the USA
• Note: Only fits 2WD models with coil spring front suspension; not compatible with torsion bar equipped vehicles

Fits 1988-1998 Chevrolet C1500 models including 454 SS, Silverado, Cheyenne, Scottsdale, and WT.

Correct outdated front-end geometry and improve handling response with the QA1 Street Series Front Upper Control Arm Kit (MPN: 52607). Designed for pro-touring, drag racing, and performance street applications, these arms replace restrictive factory components with high-strength powder-coated tubular steel. Each arm features an offset cross shaft, allowing for precise camber adjustments to optimize your alignment settings.

These control arms are engineered for use with QA1 Pro Coil Systems; however, they can be adapted for factory coil springs using a bolt-in spring adapter (sold separately). When installed, these arms are designed to add approximately 1.5–2 degrees of caster and 0.25–0.5 degrees of negative camber. When paired with QA1 lower control arms, those figures increase to 3–4 degrees of caster and 0.5–1 degree of negative camber for maximum cornering grip.

• High-strength tubular steel construction with a durable powder-coated finish
• Includes QA1 low-friction ball joints for smooth suspension travel
• Low-friction, low-deflection pivot bushings reduce binding
• Offset cross shaft for easy camber adjustment
• Optimized strength-to-weight ratio over OE stamped steel arms
• Direct bolt-in installation
• Manufacturer Part Number: 52607
• Made in the USA

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

Correct outdated front-end geometry and improve the handling of your classic truck with the QA1 Street Series front upper control arm kit. Engineered with an optimized strength-to-weight ratio, these arms are manufactured from 12-gauge HSLA (High-Strength Low-Alloy) steel for maximum durability and finished in a long-lasting black powder coat. Designed for versatility, these arms are compatible with factory springs or coil-over conversion systems.

These arms utilize QA1 patented Ultimate Ball Joints and low-friction, maintenance-free polymer bushings to ensure smooth suspension travel without the binding common in rubber bushings. When paired with QA1 lower control arms, this kit provides 7 degrees of caster to significantly improve directional stability and steering feel. This easy bolt-in kit replaces worn OE components with no specialized tools required.

• Manufactured from 12-gauge HSLA steel for superior strength
• Includes QA1 patented Ultimate Ball Joints
• Maintenance-free, low-friction polymer bushings
• Provides 7 degrees of caster gain when used with QA1 lower arms
• Includes all necessary installation hardware
• Manufacturer Part Number: 52602
• Made in the USA

Fits select 1978-1988 Buick Regal, Chevrolet El Camino, Malibu, Monte Carlo, GMC Caballero, and Pontiac Bonneville and Grand Prix models.

Correct the outdated front-end geometry of your GM G-Body with the QA1 Pro-Touring Front Upper Control Arm Kit. Engineered specifically for autocross and road course performance, these arms utilize a 1-inch longer ball joint stud to significantly improve camber gain, maintaining an optimal tire contact patch during hard cornering. The combination of high-strength steel tubing and billet aluminum cross shafts provides a superior strength-to-weight ratio over factory stamped-steel components while eliminating flex.

• Increases caster by 3-4 degrees and negative camber by 0.5-1 degree when used as a kit
• QA1 Ultra Low Friction Ball Joints provide bind-free movement and improved suspension response
• Adjustable and rebuildable ball joint design allows for custom tuning
• Billet aluminum cross shafts for reduced weight and increased durability
• Robotically welded construction with a high-quality black powder-coated finish
• Easy bolt-in installation to factory mounting points
• Manufacturer Part Number: 52565

Fits select 1979-2004 Ford Mustang and 1979-1986 Mercury Capri.

Upgrade your rear suspension geometry with QA1 Heavy-Duty Adjustable Trailing Arms (MPN 5255), specifically engineered to improve traction and eliminate the binding common in factory setups. These upper arms provide the adjustability needed to set your wheelbase and pinion angle for optimum performance without removing the arms from the vehicle.

To ensure smooth suspension travel and predictable handling, these arms replace soft, compliant OE bushings with high-durometer polyurethane bushings on the differential side. The chassis end utilizes a spherical ball or rod end assembly with UHMW polyethylene bushings, which allows the rear suspension to move more freely throughout its arc. This combination keeps your tires planted and significantly reduces wheel hop during hard acceleration.

• Adjustability: On-car adjustment of pinion angle and wheelbase via jam nuts
• Construction: Heavy-duty steel components with a durable gloss black powder-coated finish
• Chassis Mount: Spherical rod end with UHMW polyethylene bushings to eliminate bind
• Differential Mount: Fluted, greasable polyurethane bushings for improved response
• Installation: Direct bolt-in design requires no specialized tools for mounting
• Origin: Proudly made in the USA
• Manufacturer Part Number: 5255

Fits 1978-1996 GM B-Body models, including select Chevrolet Caprice and Impala SS, Buick Roadmaster and LeSabre, Oldsmobile Delta 88, and Pontiac Bonneville.

QA1 Heavy-Duty Adjustable Trailing Arms are designed to provide 1978-1996 GM B-Body owners with precise rear suspension tuning and improved power delivery. These arms allow for easy wheelbase and pinion angle adjustments without removing the hardware from the vehicle—simply loosen the jam nuts and rotate the assembly to your desired setting. By replacing soft OE rubber with high-performance components, these arms eliminate the suspension bind and flex that lead to wheel hop and unpredictable handling.

Built for maximum durability, these arms are constructed from 1.25-inch diameter, 0.120-inch wall steel tubing and finished in a gloss black powder coat for long-lasting corrosion resistance. The design features a hybrid bushing configuration: the differential end uses fluted, greasable polyurethane bushings, while the chassis end utilizes a spherical ball or rod end assembly with UHMW polyethylene bushings. This combination allows the rear suspension to pivot freely through its travel, keeping tires planted for superior traction and more predictable cornering.

• Manufacturer Part Number: 5254
• Adjustable design allows for on-car pinion angle and wheelbase tuning
• Constructed from high-strength 1.25" x 0.120" wall steel tubing
• Eliminates bushing bind for smoother suspension movement and improved traction
• Includes greasable polyurethane bushings and spherical rod ends
• Durable gloss black powder-coated finish
• Straightforward bolt-in installation
• Proudly Made in the USA

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

QA1 Pro-Touring Front Lower Control Arms (MPN 52537) are engineered to transform the handling characteristics of your classic GM chassis for autocross, road courses, and spirited street driving. These arms feature high-strength tubular steel construction paired with billet aluminum cross shafts to provide a superior strength-to-weight ratio while eliminating the flex found in factory stamped-steel components. Specifically configured for use with QA1 Pro Coil Systems, these arms utilize a double-shear lower shock mount for maximum durability.

• Optimized Geometry: Designed to provide 3-4 degrees of caster and 0.5 to 1 degree of negative camber when used as a complete kit, correcting outdated factory suspension geometry.
• Ultimate Ball Joints: Includes QA1 patented Ultra Low Friction Ball Joints which are both adjustable and rebuildable for long-term tuning and maintenance.
• Low Friction Bushings: Ensures bind-free suspension movement for more consistent handling and better tire contact patch.
• High-Quality Finish: Robotically welded and finished in a durable black powder coat for corrosion resistance and a clean aesthetic.
• Installation: Direct bolt-in design for straightforward installation.
• Origin: Proudly made in the USA.

Fits select 1970-1996 Buick, Chevrolet, GMC, Oldsmobile, and Pontiac A-Body, B-Body, F-Body, and X-Body vehicles. QA1 Pro-Touring Lower Control Arms are engineered to transform the handling of your classic GM platform for the demands of autocross and road course racing. These arms are designed to eliminate suspension flex and provide bind-free movement throughout the entire range of travel.

Constructed from high-strength steel tubing paired with billet aluminum cross shafts, these arms represent some of the lightest options on the market without compromising durability. This kit is specifically configured for QA1 Pro Coil Systems, utilizing double-shear lower mounting points for increased structural rigidity under high lateral loads. Each arm is robotically welded and finished in a high-quality black powder coat for a professional appearance and long-term corrosion resistance.

• Part Number: 52520
• Includes QA1 Ultra Low Friction Ball Joints to eliminate bind and improve predictability
• Adjustable and rebuildable ball joints for precision tuning and maintenance
• Geometry optimized to add 3-4 degrees of caster and 0.5 to 1 degree of negative camber when used as a full kit
• High-strength tubular construction with lightweight billet aluminum cross shafts
• Compatible with QA1 Pro Coil Systems via double-shear lower shock mounts

Fits select 1970-1996 GM A-Body, B-Body, F-Body, and X-Body vehicles, including Chevrolet Camaro, Caprice, Impala SS, and Pontiac Firebird. This QA1 Pro-Touring Upper Control Arm kit is engineered to correct outdated front-end geometry, making it an essential upgrade for autocross, road course, and performance street applications.

These arms utilize a 1-inch longer upper ball joint stud to significantly improve camber gain, maintaining an optimal tire contact patch during hard cornering. The construction features high-strength steel tubing paired with billet aluminum cross shafts to provide a superior strength-to-weight ratio while reducing unsprung weight. Each arm is robotically welded and finished with a durable powder coating for long-term corrosion resistance. For those using QA1 Pro Coil systems, these arms are configured for double-shear lower mounting to ensure bind-free movement and maximum rigidity.

• Manufacturer Part Number: 52518
• Includes QA1 Ultra Low Friction Ball Joints (adjustable and rebuildable)
• Adds 3-4 degrees of caster and 0.5 to 1 degree of negative camber when used as a full kit
• One-inch extended ball joint studs for optimized camber curves
• Billet aluminum cross shafts and low-friction bushings eliminate suspension bind
• Designed for easy bolt-in installation to factory mounting points
• Proudly made in the USA