Availability
QA1 offers upper and lower rear trailing arms for Ford and GM applications in boxed, tubular, and heavy-duty adjustable options. All upper tubular and lower boxed trailing arms use polyurethane bushings on both ends, while upper adjustable and lower tubular trailing arms use a spherical ball or rod end assembly on the chassis end to eliminate bushing bind, allowing the suspension to move smoother for better control. They are powdercoated or zinc plated and anodized for a long-lasting finish. Keep your tires planted firmly on the ground for improved traction and a more predictable, better handling car with a set of QA1 rear trailing arms. Features may include: * Boxed trailing arms are constructed from 0.120 in. wall cold rolled steel tubing for maximum strength and flex elimination. * Tubular trailing arms are constructed from 1 1/4 in. diameter, 0.120 in. wall steel tubing which offers increased strength over other designs, but also have the added advantage of lighter weight. * Boxed and tubular styles feature fluted, greasable polyurethane bushings, which are superior to the stock rubber bushings. * Heavy-duty adjustable trailing arms allow easy rear suspension adjustments for optimum handling and traction. Simply loosen the jam nuts and adjust the pinion angle without removing the arms from the vehicle. They replace soft OE differential bushings with polyurethane differential bushings, and they use a spherical ball or rod end assembly with UHMW polyethylene bushings on the chassis end * Adjustable styles are available in aluminum and steel options
( 96 )
$357.95
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$475.95
QA1 sway bars afford improved handling and control by reducing body roll. They're manufactured from lightweight 4130 chromoly steel and 1045 cold-formed steel—with a gloss black powdercoat finish for maximum strength, endurance, and corrosion resistance. The QA1 sway bars are precision CNC-formed, ensuring proper mounting in the stock location for a true bolt-on installation. They also feature adjustable end links to customize roll stiffness to your personal specifications. These sway bars from QA1 include greaseable graphite polyurethane bushings, along with high-quality zinc plated hardware. Engineered and road-tested to give your ride the grip that it needs to hold the road, QA1 sway bars are available for fitment on many vehicle applications. Order them individually for the front or rear—or in a complete kit.
( 135 )
$264.95
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$503.95
Calvert Racing CalTracs truck traction bars will get your vehicle hooking harder than ever! Whether you're drag racing, sled pulling, or just towing, these bars will help eliminate wheel hop in various conditions. With unsurpassed quality and craftsmanship, the innovative traction bars have often been imitated, but never duplicated. Calvert has spent years specializing in leaf spring traction enhancement, so whether you have a daily driver or an 8-second drag truck/car, CalTracs systems will outperform the rest. Features include: * Complete bolt-on installation--no cutting, welding, or modifications to OEM suspension * Keeps axle from rotating, helping maintain pinion angle * Improves 60 ft. times * Full preload adjustability * Eliminates spring wrap-up * Powdercoated gloss black finish
( 75 )
$440.00
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$495.00
QA1 Proma Star externally adjustable coilover shocks and struts provide just the right combination of consistency, reaction, and durability for drag racing. They have special valving, which is designed to compensate for high shaft speed, while allowing for low shaft speed control. When combined with the 18 externally adjustable valve settings, they ensure an improved grip on the track from end to end. Other features include a bright-anodized aluminum body, PTFE-lined bearings or polyurethane bushings, a 5/8 in. centerless-ground chrome piston rod, and aerospace-caliber sealing materials.
( 175 )
$319.95
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$458.95
Calvert Racing CalTracs Low Profile traction bars buy you more ground clearance under their pivot assemblies. Virtually identical to their standard setups, these low-profile CalTracs have one less hole of adjustment getting you extra clearance. Calvert Racing designed Low Pro systems for street-driven vehicles that want more clearance for everyday driving. Features include: * Complete bolt-on installation--no cutting, welding, or modifications to OEM suspension * Keeps axle from rotating, helping maintain pinion angle * Improves 60 ft. times * Full preload adjustability * Eliminates spring wrap-up * Powdercoated gloss black finish * Full-color installation guide * PSCA, NMCA, NHRA-approved
( 94 )
$395.00
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$495.00
Control arms are considered key components in your vehicle's suspension system. Hard usage or even a minor encounter with a curb, pothole, or speed bumps can bend, crack, or damage a control arm—which often leads to poor handling. Summit Racing Equipment® offers a range of front upper and lower control arms in your choice of stock or tubular styles. These factory-type replacements are designed to fit specific vehicle applications. Enjoy improved directional stability, handling, and a smoother ride with new control arms from Summit Racing™.
( 111 )
$271.99
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$525.99
Sport shocks and struts from Koni are carefully designed to provide exceptional road-holding and handling properties, combined with an acceptable level of comfort. They offer responsive steering and cornering, improved body control, and limited body movements when braking and accelerating, resulting in a direct feel and excellent wheel-road contact.
( 82 )
$250.24
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$535.17
Classic Performance Totally Tubular rear trailing arms are your alternative to factory arms. They are made of heavy-gauge steel for strength and are fitted with their patented high performance polyurethane bushings. These bushings are self-lubricating, can withstand temperatures of up to 400 degrees F, and are guaranteed not to squeak. Choose a stronger alternative that is totally awesome--Totally Tubular rear trailing arms from Classic Performance.
( 21 )
$278.99
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$504.99
Arnott new OE air shocks and struts are available for most air ride-equipped vehicles. As their title suggests, these are not rebuilt—they're new models with OE-quality and fit, but without the premium OE price. Arnott makes use of name brand, high-quality components for longer life, and they offer faster installations with detailed manuals and videos—plus they're backed by a limited lifetime warranty. From import cars to domestic SUVs and everything between, there's an Arnott aftermarket air shock or strut to precisely match your air ride system application. Order the shocks or struts that match your make and model (Arnott highly recommends replacing them in pairs).
( 27 )
$257.66
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$539.80
Summit Racing™ coilover shocks provide true independent compression and rebound adjustment. Our double-adjustable twin-tube shocks provide such a wide range of adjustment that you're able to go from soft settings for a comfortable ride to extremely stiff for hardcore performance handling. They are crafted from clear anodized lightweight aluminum and fitted with precision-machined aluminum pistons and centerless-ground hard chrome plated piston rods. Set the right valving for your application and maximize performance with Summit Racing™ coilover shocks.
( 19 )
$256.99
Racers know that wheelies may look awesome but they kill performance. Summit Racing™ wheelie bars control wheel stands without over unloading the rear tires. This puts the maximum power potential towards launching and propelling your car forward. These wheelie bars feature a fixed upper stainless steel rod for maximum strength and triangulation, a lower 6061 T-6 aluminum flat bar for fatigue resistance, and natural rubber wheels with aluminum Delrin hubs. These wheelie bar kits include all necessary mounting hardware for a quick and easy bolt-on installation, which also allows you to set clearance of the wheelie bar wheels before you lock them down to the rear housing—no welding is required.
( 13 )
$259.99
UMI Performance sway bars are designed to reduce body roll and understeer and increase cornering capabilities, resulting in a more balanced suspension. The front sway bar is more rigid than the factory model and comes complete with new polyurethane end links and greaseable sway bar bushings. The rear sway bar is supplied with new Grade 8 mounting hardware and locknuts. UMI Performance sway bars are manufactured from 4140 chromoly steel—and formed as one piece to ensure maximum strength and performance. Each rear sway bar is heat-treated and heat-formed to maintain longer memory than a cold bent bar, while the front sway bar is CNC-bent for a precise and accurate fit every time. Order the kit recommended for your vehicle.
( 69 )
$411.80
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$419.99
Slam your ride! Belltech rear flip kits allow you to relocate the rear axle of your truck from beneath the leaf spring to above it, making it possible to drop your ride several inches, as opposed to just using lowering springs. These high-quality kits will properly position the rear axle pinion shaft relative to the driveline so that vibrations never become an issue.
( 42 )
$316.00
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$550.00
Air Lift LoadLifter 5000 Ultimate air spring kits feature an internal jounce bumper for maximum ride comfort. They use 2-ply reinforced commercial-grade bellows, which mount between the spring and frame and can be inflated from 5 to 100 psi—to level loads up to 5,000 lbs. on large pickups and vans, wreckers, ambulances, motorhomes, and commercial trucks. LoadLifter 5000 Ultimate kits include bellows, jounce bumpers, air lines, fittings, brackets, mounting hardware, and instructions. They're engineered for installation in about two hours. Order the kit designed for your make and model vehicle.
( 153 )
$346.99
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$533.99
Belltech Street Performance shock kits provide performance handling all around. Their engineers have focused their attention on tuning the low-speed compression characteristics of these shock absorbers, which are responsible for controlling pitch and roll, to help keep you confident and in control. Their progressive rebound tuning allows you to use large aftermarket wheels and still have a smooth, firm ride. These twin-tube shocks feature oversized construction with PTFE coated bushings and piston seals to provide the lowest possible friction and long-lasting performance. So, what's the ultimate in street performance? The increased comfort and maximum comfort of Belltech Street Performance shock kits.
( 54 )
$306.00
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$438.00
Engineered for drag racing, Calvert Racing split mono-leaf springs have a higher spring rate and a stiffer ride than stock springs. Tested on the fastest stock suspension cars in the world, they are designed to control and reduce excessive body separation in rear suspension and plant the rear tires without unloading. The parabolic rear-half design distributes the main spring pressure point through the length of the half, reducing spring breakage. Calvert Racing split mono-leaf springs are assembled to order with Grade 8 hardware, heavy-duty alignment clamps, front aluminum bushings, and rear polyurethane bushings. They are stress-relieved and arch verified, available in several ride height options, and have been proven to withstand over 2,500 hp at 1/4 mile ETs in the 6s. Choose the springs designed for your vehicle.
( 46 )
$460.00
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$495.00
Wilwood C10 Steel ProSpindles provide a pair of one-piece drop spindles with integrated steering arms, constructed from a proprietary grade of cast from steel, and black e-coated. They are specifically designed for use with Wilwood disc brake kits and have a 2.50 in. drop for a more aggressive stance without affecting steering geometry. They are designed with a traditional bearing snout that supports Wilwood kit-specific hubs in both 5 x 4.75 in. and 5 x 5.00 in., or 6 x 5.50 in. wheel bolt circles. Select the C10 Steel ProSpindles designed for your vehicle.
( 2 )
$419.21
QA1 Pro Coil shocks and struts are designed to change over your OEM suspension to an adjustable coilover design. They include two high performance shocks or struts and all necessary mounting hardware. QA1 Pro Coil shocks and struts are available for street use in single or double-adjustable styles and also come in a full drag race version built only for the race track.
( 25 )
$260.95
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$392.95
Upgrade from stamped steel and rubber bushings with QA1 Mopar control arms. QA1 arms are stronger and lighter than the stock control arms. They are constructed of powdercoated steel and fitted with stiffer bushings for better handling and response. Improve the performance of your performance car with QA1 control arms.
( 99 )
$464.95
Wilwood AFX ProSpindles are high-strength steel spindles for GM A-, F-, and X-body vehicles that use the original bolt-on steering arms. They are specifically designed for use with Wilwood disc brake kits with a 2.00 in. drop for a more aggressive stance without affecting steering geometry. They offer the added benefits of providing a lower center of gravity, raised front roll center, and a decreased camber change, improving handling with less body roll. Wilwood AFX ProSpindles install using the OE ball joints using original or aftermarket control arms.
( 3 )
$317.57
Want to improve the performance of your ride, without a major hassle? QA1 Stocker Star shocks could be your answer. They're lightweight, fully adjustable, and bolt right in. They rely on deflective-disc valving and have 18 levels of damping, which you can select at the twist of a knob—with the shocks in place on the vehicle. Stocker Stars have 5/8 in. hard-chromed centerless-ground piston rods, double-lip wiper seals, and one-piece, forged, machined-aluminum bodies that are bright-anodized for great looks and durability. Each shock is dyno-tested for consistency and comes with chrome or zinc plated mounting hardware. Order the model recommended for your vehicle application.
( 339 )
$302.95
UMI Performance stock height springs are designed to add modern handling and a crisp ride while maintaining the factory muscle car appearance. Wound from premium chrome silicon wire, they feature linear rates for consistent handling characteristics with an increase in stiffness to reduce body roll and eliminate the floating feeling so common with factory suspension. Their ride height is engineered to be level on cars equipped with standard small block Chevrolet, Pontiac, aluminum head/intake big block Chevy, or LS engines (lightened cars may require spring trimming). Full-weight big block applications will have a 1/4 in. nose-down rake. Features include: * Designed to maintain the factory muscle car appearance with today's modern feel * Consistent rates and the best materials so your car sits properly for years to come * Linear spring rates provide a firm, yet comfortable, ride and incredible handling * No more floating feeling * Suitable for Pro-Tour, autocross, corner carving, and general cruising * Manufactured in the USA
( 31 )
$349.99
QA1 dynamic adjustable strut bars offer improved performance for your Mopar suspension. These lightweight bars are constructed from 6061 T-6 aluminum and anodized. They are direct bolt-ins for aftermarket or factory K-member replacements for an easy-to-install upgrade. Plus, they're fully adjustable and include rod ends. Maintain alignment of your lower control arm and eliminate binding for faster weight transfer, with QA1 dynamic adjustable strut bars.
( 31 )
$304.95
Get the performance benefits of a more rigid chassis by reducing unwanted flex with these QA1 adjustable rear frame supports. They are engineered to improve handling and suspension performance by eliminating chassis flex and decreasing torque transfer. Made from high-quality materials, they feature adjustable threaded sleeves for adjusting the preload in the rear trailing arm mount after installation. Designed to clear stock and aftermarket mufflers, they include all of the necessary hardware for an easy installation.
( 3 )
$275.95
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