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QA1 Four Link Conversion and Narrowed Ford 9 in. Axle Kits
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
$4,435.95
QA1 Level 1 Big Wheel Kits
QA1 Level 1 Big Wheel kits contain everything to give your GM B-body or G-body the ideal stance, plus improved ride quality. Each kit will include front and rear single adjustable Pro Coil system coilovers and an aluminum spanner wrench to dial in the exact style you want. The single adjustable valving allows you to firm up or soften the ride with the simple twist of a knob. QA1 Level 1 Big Wheel kits also include adjustable upper and lower trailing arms that center your rear axle in the wheel well, granting more clearance for larger wheels. Additionally, tie rod adjuster sleeves and a thrust bearing kit complete the kits. The components are powdercoated and ready to install with the necessary hardware, making your installation hassle-free. Choose the kit designed for your vehicle.
( 1 )
$2,901.95
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$3,031.95
QA1 Four Link Conversion and Standard Ford 9 in. Axle Kits
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
$4,435.95
QA1 Rear MOD Coilover Conversion Systems
QA1 MOD Series coilover conversion systems put the ability to re-valve your shocks—on your car—into the palm of your hand. These innovative shocks feature QuickTune Technology, an industry-first that provides the ability to adapt to any track, any conditions, any time. The technology consists of interchangeable, dry modular valve pack assemblies, that can be thought of as dozens of finely tuned shocks you can hold in the palm of your hand. They define the valving curve of the shocks, and can be changed without interrupting the oil pathways. Simply unscrew from the shock, bolt-in another one with a new pre-determined valving range—and you're ready to go. There's no mess, no contamination, no air intrusion, and no downtime waiting on someone to re-valve your shocks. Ideal for Circle Track and Street/Strip applications, the shocks are available in a variety of extended and collapsed length models to best fit your vehicle. You get everything you need with these QA1 Rear MOD systems, from shocks to nuts and bolts, complete installation instructions, and even decals! Additional benefits and features of QA1 MOD Series shocks: * All new design delivers force, control, and unmatched tenability * Hard anodized aluminum bodies with PTFE—durable, non-galling surface * Double-adjustable shocks with low-speed bleed adjustments * Large solid piston (with blow-off valve)—improved driver feel and control with up to 1,600 lb. force * High-speed valving adjustment (coarse adjustment)—relates to shock operation during impact events, like hitting a pothole or curb * 24 clicks/settings—wider range of adjustment than comparable shocks * Indexable base eyelet—multiple mounting position to optimize knob access and provide more mounting flexibility * Low-speed valving (fine-tune adjustments)—adjusts ride quality and weight transfer on corner entry/exit; more bleed for softer feel and less bleed for stiffer feel * Piggyback or remote canister options * Unique spring adjuster nut and tool * Thrust bearings included * Superior thermal performance, as oil is in constant contact with outer body * One base shock can be upgraded over time to keep up with increased performance levels of your vehicle
Not Yet Reviewed
$2,172.95
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$2,366.95
QA1 Standard Width Ford 9 in. Rear Axle Housings
If you are already running one of QA1's 4-link suspension kits on your classic car, get ready to take your build to the next level with their custom 9 in. rear housings engineered to integrate seamlessly with your existing QA1 setup. Designed for enthusiasts looking to improve performance and durability, QA1 Standard OE width Ford 9 in. rear axle housings are perfect upgrades for handling more horsepower and aggressive driving conditions. They are designed to bolt seamlessly to your QA1 4-link system, with fully formed trailing arm brackets that minimize flex under heavy loads, enhancing strength and rigidity. Whether you're increasing horsepower or seeking a more durable rear-end solution, these custom QA1 9 in. rear housings deliver the performance gains you need. Select the kit designed for your vehicle. Features: * Fabricated center section engineered for maximum strength and durability * Formed trailing arm brackets ensure your suspension remains rigid * Heavy-duty 3 in. O.D., 1/4 in. thick 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 * Standard 5 x 4 3/4 in. bolt pattern for a wide range of wheel options * Durable semi-gloss powdercoat 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
$2,099.95
QA1 1999-06 Silverado/Sierra 1500 Front Coilover Conversion Systems
Upgrade the front suspension of your NBS truck with QA1 1999-06 Silverado/Sierra 1500 front coilover conversion systems. These kits match tubular upper and lower control arms with QA1's single or double adjustable coilovers to deliver the perfect stance, along with improved geometry and ride quality. They are easy to adjust on the vehicle and deliver a noticeable improvement in both comfort and control. Select either the single or double adjustable kit for your truck. Features: * QA1 front coilovers give you 1 to 3 in. of ride height adjustability right out of the box. (To go lower, pair them with QA1's 2 in. drop spindles for a total drop range of 3 to 5 in. up front, sold separately). * QA1 upper and lower tubular control arms are built to improve suspension geometry and increase strength over stock. They offer more clearance for coilovers, reduce deflection under load, and help maintain proper alignment. * QA1 single adjustable coilovers offer 18 clicks of combined compression and rebound adjustment. * QA1 double adjustable coilovers offer18 clicks of independent compression and rebound adjustment * Bolt-on design using standard tools--no welding required * Pre-installed ball joints and bushings save you time * Spanner wrench and thrust bearing included
Not Yet Reviewed
$2,399.95
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$2,599.95
QA1 Level 2 Full Vehicle Handling Suspension Kits
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 )
$2,965.95
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$3,609.95
QA1 Four Link Conversion Kits
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 )
$2,383.95
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$3,687.95
QA1 Rear Suspension Conversion Systems
QA1 rear suspension conversion systems provide easy, bolt-in options to replace your coil springs on factory truck arms—without any cutting, welding, or other fabricating. Each kit contains frame brackets, axle brackets, linkage assemblies, a crossmember assembly, and necessary hardware. The conversions are available with coilovers or available for use with the factory springs. Order the model designed for fitment on your specific vehicle, and enjoy the stance, handling, and suspension performance of a revolutionary QA1 system.
( 19 )
$2,795.95
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$3,101.95
QA1 Mopar Rear Coilover Conversion Systems
Upgrade your classic Mopar A, B or E body car to a triangulated four-link design with QA1's Mopar rear coilover conversion systems. These QA1 conversion systems will transform the way your classic Mopar launches, handles, and cruises down the road! The great-looking powdercoated components improve performance and save weight—plus, you'll enjoy a much more modern driving feel and improved handling in any setting. Order QA1's Mopar rear coilover conversion system for your application. Additional features: * Proven triangulated 4-link design is popular with street/strip machines, pro-touring/road racers and autocross drivers * Available for Mopar 8 3/4 in., Ford 9 in. and Dana 60 rear axles * Improved traction during launch * Easy installation that requires minimal welding * Supports both standard and inboard spring locations * Gain greater anti-squat and pinion angle adjustability * Correct your wheelbase to fit larger wheels and tires * Has clearance for 3 in. over the axle exhaust * Single- and double-adjustable shocks eligible for limited lifetime warranty by the manufacturer * You can add the optional rear sway bar to further reduce body roll during hard launches and cornering * Made in the USA
( 2 )
$2,383.95
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$3,660.95
QA1 MOD Series Pro Coilover Systems
Don't be limited to adjustments! Completely re-valve in minutes with the QA1 MOD Series Pro coilover systems. Designed specifically to meet the demands required by today's high performance drag race and handling/pro-touring cars, QA1's multi-patent-pending MOD Series shocks will transform the way racers respond to changing track conditions and configurations. The key element to this tunability is QuickTune Technology: dry modular valve packs that can easily be swapped out, all while the shocks remain on the car. An industry first, MOD Series shocks can easily be re-valved without interrupting the oil path or opening up the shock for debris and air contamination. Medium compression and rebound valve packs come standard; soft or firm compression and rebound valve packs are also available. Once the desired valving is in place, the unique double-adjustable design (with adjustable low-speed bleed) allows for fully independent control over the compression and rebound characteristics. With all these adjustability options, MOD Series shocks achieve an expansive force curve capability and an unprecedented level of tunability. The shocks also feature mounting adjustability to accommodate a variety of vehicles and mounting configurations. The nitrogen-charged canister is available in a piggyback or remote configuration for ease of installation in tight areas, and the base eyelet is indexable, so you can unbolt and reattach it at the angle you need for the best shock and canister placement. Like all QA1 shocks, MOD Series coilovers are 100 percent dyno-tested and serialized. Order the kit recommended for your vehicle.
Not Yet Reviewed
$2,277.95
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$2,366.95
QA1 Rear MOD Series HD Pro Coilover Conversion Systems
The MOD Series shocks included with QA1 rear MOD Series HD Pro coilover conversion systems are designed specifically to meet the demands of today's high-performance drag race, pro-touring, and track cars, which require higher force curves as their performance levels increase. They feature a unique, double-adjustable design with variable low-speed bleed. This allows for fully independent control over the compression and rebound characteristics, making these among the most capable shocks currently available. The key elements to this range of adjustment are the QuickTune valve packs--modular valve packs available in multiple force curves that can easily be swapped out without completely disassembling the shock, an industry first. Get low and high-speed compression with adjustable rebound when your order the QA1 rear MOD Series HD Pro coilover conversion systems best suited for your application. Product features and items include: * Impressive force curve capability and high level of precise tunability while still on the vehicle * Patented QuickTune™ valve packs in MOD Series shocks allow re-valving to be completed in minutes without interrupting the oil path and opening the shock * Valve packs also eliminate the chance of debris and air contamination that can happen during traditional re-valving * Indexable base eyelets easily unbolt and reattach for mounting flexibility to achieve the best shock and canister placement * External canister (60 psi nitrogen-charged) mounting flexibility (piggyback or remote) * MOD Series shocks are designed for the highest performing autocross, road race, track day, and drag race competition vehicles
Not Yet Reviewed
$2,116.95
