Availability
QA1 lowering kits achieve the ideal lowered look for your truck. Available for 2WD and 4WD models, each kit features QA1's front Pro Coil coilovers and Rear Drop Kit, which provide adjustability to achieve the perfect stance, while providing significant improvements to ride quality and performance. For an all-in-one solution to upgrade the suspension of your truck, choose the QA1 lowering kit designed for your vehicle. Features: * Easy bolt-in installation * Adjustable ride comfort and handling ability -- QA1 Proma Star single and double adjustable shocks deliver exceptional ride quality and performance with the simple turn of a dial, allowing you to effortlessly switch between a comfortable cruise and a more aggressive feel for daily driving or twisty backroads * Adjustable front and rear ride height -- Fully threaded front coilover shock bodies provide adjustment without the use of clumsy shims or spacers, while the rear drop kits offer 2 in. of adjustment to dial in the final rake of the truck. * Heavy-duty shock design -- Upgraded shock with polyurethane bushings (specifically chosen to withstand the daily use of trucks) and a 1 in. chromoly T-bar. * Lifetime warranty -- Lifetime coverage of the QA1 shocks * Rear flip kit, shackle and hanger kits -- Lower the rear of your truck without compromising ride quality -- Heavy-gauge steel construction, powdercoated finish, and top-notch hardware guarantee long-lasting performance in any driving conditions
( 1 )
$1,558.95
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$2,953.95
QA1's Pro Rear Parallel 4-Link systems with panhard bar kits simplify the fabrication process for vehicles that lack aftermarket suspension support—and offer an easy solution that provides ride height adjustability and a simple installation process. These DIY kits produce professional-quality results and great looks in a convenient package. Designed for the DIY enthusiast, each kit contains high-quality, MIG-weldable components that ensure a safe and well-engineered design that'll give your favorite truck or hot rod the stance and ride quality it deserves. The systems are available in three models: * Basic, with no shocks or springs * Single-adjustable, with coilover shocks (150 lb. spring rate) * Double-adjustable, with coilover shocks (150 lb. spring rate) ADAPTABILITY: Kits include all necessary components and hardware for assembling and mounting the trailing arms, shock mounts, and panhard bar. The raw components can be cut to length and welded as needed, allowing for seamless adaptation to a wide range of applications. PACKAGING and SIMPLICITY: The parallel 4-link system, by design, packages easily into many applications, making it an ideal solution where space is limited. The parallel 4-link system is easy to tune, making it a great choice for DIY mechanics while still meeting the demands of high-end builds. Powdercoated trailing arms with forged bushing ends offer great looks, durability, and offer a smooth, compliant ride. TUNABILITY and RIDE HEIGHT ADJUSTMENT: Adjustable coilover brackets provide ride height adjustment so you can tune in the perfect stance for your ride. The included panhard bar and adjustable trailing arms ensure you can fine-tune your axle position and pinion angle for proper function and control. KIT CONTENTS: -- Powdercoated trailing arms with forged bushings and provide adjustment from 24 5/8 in. to 25 1/2 in. in length -- Trailing arm axle brackets for 3 in. axle tubes -- Panhard bar max length 37 in. -- 40 in. trailing arm crossmember -- 40 in. shock crossmember and mounting tabs -- All required hardware -- NOTE: Single- or double-adjustable models also include coilover shocks
Not Yet Reviewed
$1,099.95
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$1,885.95
QA1's handling suspension kits provide a full-vehicle upgrade that fits your needs. Available in three different levels of performance, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. Greater control and improved cornering are key benefits of QA1 Level 2 handling suspension kits. They're designed to boost performance and include a more extensive assembly of components than Level 1 kits. They offer easy bolt-on installation and full compatibility with the OEM parts you attach them to. All QA1 handling suspension kits are available with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you desire. Select the kit designed for your vehicle.
( 10 )
$2,822.95
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$8,588.95
Build your project exactly how you want with QA1 Level 2 Big Wheel kits! Get the perfect look by easily adjusting your ride height with front and rear coilovers. Raise or lower your car 2 in. the front. Raise it up to 2 in. or lower it by up to 3 in. in the rear. QA1 Level 2 Big Wheel kits allow you to dial-in the exact style you want in minutes with the included spanner wrench. These complete bolt-on suspension kits are designed to fit up to 28 in. wheels on your vehicle and include everything needed to get your Box sitting right, while giving you a better ride and improved handling. Product features and benefits: * Double-adjustable coilovers give you the ability to individually tune your shock compression and rebound to get the perfect ride and get more grip off the line for drag racing * Adjustable upper and lower trailing arms allow your wheel and tire package to fit with adjustable trailing arms that center your rear axle in the wheel well to gain more clearance for up to 28 in. wheels * Tubular control arms are much lighter and stronger than stock and will upgrade front-end geometry for better drivability—and are designed specifically for big wheel cars with corrected suspension angles for large wheels and tires * Tubular sway bars help reduce body roll and improve stability with front and rear sway bars to reduce handling issues that come from big wheels and raised ride heights * Easy, bolt-in installation * Parts come powdercoated and ready-to-install with all necessary hardware to allow you to bolt up the kit right in your garage or work with your local shop * Works with original factory rear axle housings or Quick Performance 9 in. rear axle housings
( 2 )
$5,094.95
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$5,364.95
QA1 body mount kits include a variety of aluminum bushings, bolts, and other hardware for use on classic Chevy Camaros and Pontiac Firebirds from the 1960s. These accessories are used to attach parts such as subframe connectors.
Not Yet Reviewed
$152.95
QA1 upper loop conversion kits are designed to convert QA1 shocks with a 9/16 in.-18 threaded piston rod from stud mount to loop mount utilizing a 5/8 in. or 1/2 in. bolt. They include one loop, one bushing, one 1/2 in. sleeve, and one 5/8 in sleeve.
( 4 )
$50.95
QA1 T-bar kits are designed to convert loop-type QA1 adjustable shocks to a T-bar mount. They require the use of a 3/4 in. inside diameter bushing of the current loop mount. The kits include a chrome plated T-bar, two retaining clips, two 3/8 in. bolts, and two 3/8 in. lock nuts. The T-bars are available in different lengths to fit the QA1 shocks.
( 23 )
$26.95
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$44.95
QA1 stud top conversion kits are designed to convert your QA1 shocks to stud top mounting. They include studs, bushings, washers, and nuts.
( 15 )
$29.95
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$39.95
QA1 Mustang II coilover conversion systems give you a suspension that rides like a dream. They consist of QA1 shocks, plus coil springs that are specifically designed for replacing the factory shock and spring combination with a coilover unit. These systems offer soft compression and rebound adjustability for those enthusiasts who like to fine-tune their rides.
( 32 )
$703.95
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$917.95
Ditch those clunky leaf springs and take control of your rear suspension with QA1's coilovers and triangulated 4-link conversion kits. This upgrade improves ride quality, enhances handling performance, and enables you to dial in the perfect stance. With the added benefit of accommodating wider wheels and tires, this kit is the ideal solution for your car. QA1's 4-link conversion kits deliver handling control without compromising your daily comfort. Perfect for both street and track use, adjustable shocks are famous for their tunability, giving you exceptional handling and control and finer control over your suspension. Available with single adjustable, double adjustable, or MOD series shocks. Thoughtful design meets effortless installation requiring minimal welding. You'll experience a painless installation and setup process, where adjusting ride height, pinion angle, or wheelbase is as simple as a few tweaks – no link removal required. No modifications to floor pan required.
( 3 )
$2,269.95
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$3,511.95
QA1 Pro coilover systems are engineered from the ground up to offer unmatched performance over stock suspension setups. Pro coilover systems utilize adjustable and non-adjustable coilover shocks and springs designed specifically for replacing the factory shocks and springs. This combination offers ride height adjustment and variable position valving adjustment (where applicable) for performance not found in other kits. Choose QA1 Pro coilover systems for your next suspension upgrade.
( 341 )
$1,015.95
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$1,219.95
QA1's handling suspension kits provide a full-vehicle upgrade that fits your needs. Available in three different levels of performance, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. Top performance is the desired goal of many automotive upgrades—precisely what QA1 Level 3 handling suspension kits deliver. Compared with the Level 1 and 2 packages, these heavy-duty assemblies offer additional control components, as well as stiffer springs to maximize your cornering ability and handling. QA1 Level 3 kits are available with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you want. Select the kit designed for your vehicle.
Not Yet Reviewed
$2,101.95
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$10,705.95
Seeking improved stance, along with ride quality and handling? Turn to QA1's handling suspension kits for a full-vehicle upgrade that fits your needs. Available in three different levels of performance, these kits offer easy, bolt-in installation (some welding may be needed) and seamlessly work with whatever OE component each piece attaches to. And with different levels, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. QA1 Level 1 handling kits deliver everything needed in one shot, taking the guesswork out of the process. These full-vehicle upgrades are designed to boost performance while giving you steady, reliable comfort. All QA1 handling suspension kits are offered with or without shocks and struts—giving you the flexibility to obtain the shocks or struts and spring rates you need. Select the kit designed for your vehicle.
Not Yet Reviewed
$1,197.95
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$4,051.95
QA1's 4-link conversion and narrowed Ford 9 in. axle kits are an all-in-one solution that gives you everything you need to get your First-Gen Camaro or Firebird project on the road—fast. QA1 paired their 4-link suspension kit with a custom narrowed 9 in. rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components—every component in this package is tested by QA1 to fit the first time. These QA1 upgrade kits have been engineered to deliver the performance, ride quality, and adjustability you need to handle serious power and aggressive driving—without the hassle of having to outsource each part. Ultimate shock performance: Ditch your leaf springs for QA1 MOD Series coilovers, triangulated 4-link suspension and an all-new narrowed 9 in. rear end. QA1's MOD shocks are designed to provide the ultimate in tunability and performance. With their four-way adjustable valving, remote nitrogen canisters, and huge dampening forces, QA1 MOD shocks deliver in any driving scenario. QA1 4-link kits are fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver. Easy installation: QA1 is committed to delivering products that make upgrading your car as simple as possible, and their 4-link kits with 9 in. housing are designed for a bolt-on installation, eliminating the need for custom fabrication. Key Features: * Narrowed housing to accommodate wide wheel and tire packages in mini tubbed cars * Fabricated center section engineered for maximum strength and durability * Formed trailing arm brackets reduce flex under high loads, ensuring your suspension remains rigid * Heavy-duty 3 in. OD, 1/4 in. wall axle tubes provide the durability needed for high-performance applications * 31-spline 1541H alloy axles support up to 650 hp, with the housing handling up to 800 hp * Durable semi-gloss powder coat finish offers long-lasting protection and a clean, sleek look * Drain plug, fill plug, and Jack Pad come standard to make service a breeze * Includes T-bolts and housing studs for assembling axle shafts and installing third members * High-quality roller bearings for smooth operation and long-lasting reliability
Not Yet Reviewed
$4,223.95
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$5,261.95
Looking for a better launch, straight-line stability, and consistent performance? Turn to QA1's drag racing suspension kits for a full-vehicle upgrade that fits your needs. Available in three different levels of performance, these drag racing kits offer easy, bolt-in installation (some welding may be needed) and seamlessly works with whatever OE component each piece attaches to. And with different levels, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. QA1 Level 2 drag racing kits are ideal for owners looking for serious performance gains at the track. They deliver everything needed in one shot, taking the guesswork out of the process, so you can skip the research and focus on preparing for your next race. Select the kit designed for your drag race car.
Not Yet Reviewed
$5,368.95
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$6,208.95
QA1 Level 3 Drag Racing suspension kits furnish your vehicle with the ability for a better launch, straight-line stability, and consistent performance. These kits utilize high-quality parts engineered together as a system to take the guesswork out of choosing the right pieces to support your performance goals. Many feature QA1's MOD Series front drag suspension kit or MOD Series front or front and rear Pro Coil system matched with Drag Race control arms and additional components to equip your vehicle with race-winning performance. Choose the kit designed for your vehicle.
Not Yet Reviewed
$8,146.95
Looking for a better launch, straight-line stability, and consistent performance? Turn to QA1's drag racing suspension kits for a full-vehicle upgrade that fits your needs. Available in three different levels of performance, these drag racing kits offer easy, bolt-in installation (some welding may be needed) and seamlessly works with whatever OE component each piece attaches to. And with different levels, you can build your car in stages, using QA1's parts list as a road map to get to the level of performance you want and have peace of mind knowing you won't have compatibility issues. QA1 Level 1 drag racing kits are ideal for owners looking for streetable track performance. They deliver everything needed in one shot, taking the guesswork out of the process, so you can skip the research and focus on preparing for your next race. Select the kit designed for your drag race car.
Not Yet Reviewed
$4,430.95
QA1 Level 3 Big Wheel kits are complete bolt-on suspension systems with control arms and sway bars to give your GM B-body or G-body the ideal stance, plus maximum performance with QA1 MOD Series shocks. The front and rear MOD Series adjustable Pro Coil coilovers offer maximum shock tunability with high- and low-speed valving adjustability. Perfect for the street or drag racing, MOD Series shocks are for those looking to get the most out of their car. QA1 Level 3 Big Wheel kits also include control arms, trailing arms, and sway bars for a complete bolt-on suspension system. The components are powdercoated and ready to install with the necessary hardware, making your installation hassle-free. Choose the kit designed for your vehicle. Features and benefits: * Front and rear MOD Series Pro Coil system * Pro Touring upper control arms and Street lower control arms upgrade your front-end geometry for better drivability * Control arms are designed specifically for big wheel cars with corrected suspension angles for large wheels and tires * Adjustable lower and upper trailing arms center your rear axle in the wheel well, granting more clearance for larger wheels * Front and rear sway bars reduce body roll and improve stability, and help reduce handling issues that come from big wheels and raised ride heights * Tie rod adjuster sleeves * Spanner wrench * Canister mount
Not Yet Reviewed
$7,261.95
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$7,403.95
QA1's 4-link conversion and standard Ford 9 in. axle kits give you everything you need to get your 2nd Gen Camaro or Firebird project on the road—fast. QA1 paired their 4-link suspension kit with a custom 9 in. rear housing for enthusiasts seeking top-tier performance and hassle-free installation. Your time is valuable, so say goodbye to hunting for junkyard rear ends or struggling with endless measurements and mismatched components—every component in this package is tested by QA1 to fit the first time. Each kit is engineered to deliver the performance, ride quality, and adjustability you need to handle serious power and aggressive driving—without the hassle of having to source each part. Ultimate shock performance: Ditch your leaf springs for QA1 MOD Series coilovers, triangulated 4-link suspension and an all-new narrowed 9 in. rear end. QA1's MOD shocks are designed to provide the ultimate in tunability and performance. With their four-way adjustable valving, remote nitrogen canisters, and huge dampening forces, QA1 MOD shocks deliver in any driving scenario. QA1 4-link kits are fully engineered to provide ride height, ride quality and instant center adjustability. Whether you're after a lowered, aggressive look or need clearance for wider wheels and tires, QA1 systems deliver. Easy installation: QA1 is committed to delivering products that make upgrading your vehicle as simple as possible, and their 4-link kits with 9 in. housing are designed for a bolt-on installation, eliminating the need for custom fabrication. Performance housing features: * Fabricated center section engineered for maximum strength and durability * Formed trailing arm brackets reduce flex under high loads, ensuring your suspension remains rigid * Heavy-duty 3 in. OD, 1/4 in. wall axle tubes provide the durability needed for high-performance applications * 31-spline 1541H alloy axles support up to 650 hp, with the housing handling up to 800 hp * Durable semi-gloss powder coat finish offers long-lasting protection and a clean, sleek look * Drain plug, fill plug, and Jack Pad come standard to make service a breeze * Includes T-bolts and housing studs for assembling axle shafts and installing third members * High-quality roller bearings for smooth operation and long-lasting reliability
Not Yet Reviewed
$4,223.95
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$5,261.95
Maximize your suspension's potential with QA1 replacement shock bushings. They're available in black polyurethane or yellow urethane, and either half or full hourglass design, depending on application. These bushings fit a variety of shocks to support your specific need, and are available individually or as a kit for some applications. QA1 shock bushings reliably provide better feel and control throughout the shock travel for a more enjoyable driving experience.
( 12 )
$5.95
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$25.95
QA1 1963-87 C10 front coilover conversion systems are a great upgrade to your C10 front suspension. Each kit comes with QA1's proven single or double adjustable coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. These shocks allow for ride height adjustability and are 100 percent dyno-tested and serialized. The QA1 C10 upper and lower control arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long-lasting durability; they're topped off with performance ball joints and low-friction, maintenance-free bushings. These kits will add up to 7 degrees of caster for more stability, and allow for optimum camber adjustment in a lowered truck. For those on a budget, QA1 also offers kits without the upper control arm—which will add 3-4 degrees of caster, while still providing ride height adjustability with coilover shocks. Order the model designed for your vehicle application.
( 28 )
$1,919.95
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$2,598.95
QA1 1988-98 C1500 level 3 front coilover conversion systems are a great upgrade to your C1500 front suspension. Each kit comes with QA1's proven double-adjustable Pro Coil coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. The shocks allow for wider wheel and tire combos, ride height adjustability, and are 100 percent dyno-tested and serialized. The QA1 C1500 upper and lower control arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long-lasting durability. The bolt-in upper control arm mount provides enhanced suspension geometry, which reduces anti-dive and ties in the upper shock mount. The kit will provide a total of 6 in. of drop when used with drop spindles, or 4 in. of drop with factory spindles. Performance ball joints and low-friction, maintenance-free bushings are standard. This easy bolt-in kit will add more stability and allows for optimum camber adjustment in a lowered truck. Everything you need is included, all the way down to the hardware; no welding is required.
( 4 )
$2,663.95
QA1 1988-98 C1500 level 2 front coilover conversion systems are a great upgrade to your C1500 front suspension. Each kit comes with QA1's proven single adjustable Pro Coil coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. The shocks allow for wider wheel and tire combos, ride height adjustability, and are 100 percent dyno-tested and serialized. The QA1 C1500 upper and lower control arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long-lasting durability. The kit will provide a total of 4 in. of drop when used with drop spindles, or 2 in. of drop with factory spindles. Performance ball joints and low-friction, maintenance-free bushings are standard. Level 2 easy bolt-on kits will add more stability and allow for optimum camber adjustment in a lowered truck. Everything you need is included, all the way down to the hardware; no welding required.
( 7 )
$2,113.95
QA1 1988-98 C1500 front and rear coilover conversion systems are a great upgrade to your C1500 suspension. Each kit comes with QA1's proven adjustable coilover shocks—so you can change the valving to meet your specific needs—along with a variety of spring rate options. These shocks allow for ride height adjustability and are 100 percent dyno-tested and serialized. The QA1 C1500 front control arms and rear torque arms are manufactured from 12-gauge HSLA steel tubing for increased strength and are powdercoated for long lasting durability. Topped off with performance ball joints and low-friction, maintenance-free bushings. Complete with adjustable instant center, panhard bar, and pinion angle to allow you to adjust the system to your exact needs. This kit will add more stability and allows for optimum camber adjustment in a lowered truck. Easily bolt in this system--no welding or bed removal required. Everything needed is included, all the way down to the hardware.
Not Yet Reviewed
$5,328.95
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$6,547.95
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