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QA1 High Performance Suspension, Driveshafts, Rod Ends & More
QA1 puts you in complete control with high performance suspension components and more for your circle track, drag racing, off-road, or street vehicle! Features like...
QA1 puts you in complete control with high performance suspension components and more for your circle track, drag racing, off-road, or street vehicle! Features like deflective disc valving, customizable compression and rebound, and lightweight aluminum construction have made QA1 shocks number one in the industry, and Summit Racing’s extensive selection makes it easy to get it all for your vehicle with the best prices anywhere! Pair them up with a set of custom-rate coil springs, heavy-duty Chromoly rod ends, and tubular chassis components for a one-of-a-kind suspension setup that you’ll only get from QA1!
QA1 puts you in complete control with high performance suspension components and more for your circle track, drag racing, off-road, or street vehicle! Features like deflective disc valving, customizable compression and rebound, and lightweight aluminum construction have made QA1 shocks number one in the industry, and Summit Racing’s extensive selection makes it easy to get it all for your vehicle with the best prices anywhere! Pair them up with a set of custom-rate coil springs, heavy-duty Chromoly rod ends, and tubular chassis components for a one-of-a-kind suspension setup that you’ll only get from QA1!
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Featured Products
QA1 Shock Oil
QA1 shock oil is a synthetically designed lubricant for racing shocks with deflective disc valving—including all of QA1's rebuildable shocks. The formula is blended with anti-fade and anti-foam properties. After spending time and effort fine-tuning your performance shock absorbers, make sure the lubricant is ready to work as hard as you do. Order a supply of QA1 5W shock oil.
( 1 )
$66.95
QA1 7Q Series Twin-Tube Shocks
QA1's rebuildable 7Q twin-tube shocks offer the performance, consistency and tunability racers demand. Formerly known as 70 series shocks, the QA1 7Q Series is a small body bearing mount shock. Racers can choose from 6 in. and 7 in. bodies, depending on rules and applications. The twin-tube design gives you a great feel for the track surface, making them a good fit for asphalt and dry slick dirt tracks. Small details add up to provide great overall performance. The black zinc coating ensures a very consistent finish, creating a tight seal every time. Pistons are made of high-quality raw aluminum, minimizing variations that can be found in anodized parts. You can valve the shock with bleed shims or drill out bleeds to maximize tunability. The QA1 7Q shocks offer the same proven performance of QA1's large-body shocks in a smaller package. The smaller outside diameter makes them great for lightweight classes or applications where packaging is an issue. Select the QA1 7Q Series twin-tube shock model for your application needs. Features: * Applications: Dwarf Cars, Mod Lites, Legends, or any low clearance application * Re-valve and rebuild the shocks in a matter of minutes using basic tools and available kits * The gland features relief cuts and a hyper screw port, making shocks easy to fill and bleed * An upgraded seal kit minimizes leaks—especially in high-rebound applications * The compression tube uses a slip fit design to simplify rebuilds * A laser-engraved, black-anodized closure nut to make serial numbers and valving easy to read at the track or in the shop. * Coilover compatible Note: You can use QA1's small steel body shocks in coil-over configurations with the appropriate kits (sold separately).
Not Yet Reviewed
$929.95
QA1 8Q Series Twin Tube Shocks
QA1's rebuildable 8Q twin-tube shocks offer the performance, consistency and tunability racers demand. Formerly known as 82 series shocks, the 8Q Series is an aluminum small-body shock available in bearing mount configurations. The threaded body makes it very easy to use in coil-over configurations with QA1 kits (sold separately). Racers can choose from 3 in. to 9 in. bodies, depending on rules and applications. The 8Q shocks offer all the performance of QA1's proven large body shocks in a more compact package. The smaller outside diameter makes this shock a great option for lightweight classes or applications where clearance is an issue. Small details add up to provide great overall performance. The scalloped base loop increases clearances in tight areas like upper control arms and shock mounts. Pistons are made of high-quality raw aluminum to maximize consistency. To maximize tunability, you can valve the shock with bleed shims or drill out bleeds. Order the 8Q twin-tube shocks for your application needs. Features: * Applications: Dwarf cars, Legends, Mini/Micro Sprint, Midgets, or any low clearance application * 8Q shocks can be re-valved and rebuilt by racers in a matter of minutes using basic tools and available kits * The gland features relief cuts and a hyper screw port, making shocks easy to fill and bleed on assembly * Upgraded seals minimize leaks—especially in high-rebound applications * The compression tube uses a slip fit design to simplify rebuilds * Laser-engraved, black-anodized closure nut make serial numbers and valving easy to read at the track or in the shop * Coilover compatible
Not Yet Reviewed
$1,024.95
QA1 5Q Series Twin-Tube Shocks
QA1's rebuildable 5Q twin-tube shocks offer the performance, consistency and tunability racers demand. Formerly known as 51 and 53 Series shocks, the 5Q series is a large body steel shock available in both bearing mount and stock mount configurations. Choose from 7 in. and 9 in. bearing mount bodies or various stock mounted lengths depending on rules and applications. Shocks are also available with rebound adjustable piston rods to adjust valving at the track. Small details add up to provide great overall performance. The black zinc coating ensures a very consistent finish, creating a tight seal every time. The scalloped base loop increases clearances in tight areas like upper control arms and shock mounts. Pistons are made of high-quality raw aluminum, minimizing variations that can be found in anodized parts. You can valve the shock with bleed shims or drill out bleeds to maximize tunability. Order the 5Q Series twin-tube shock model for your application needs. Features: * Applications: Street Stock, Hobby Stock, B-Mod/Sport Mod, Modified * 5Q shocks can be re-valved and rebuilt by racers in a matter of minutes using basic tools * Two-piece bodies make it simple to disassemble and reassemble shocks * The gland features relief cuts and a hyper screw port, making shocks easy to fill and bleed on assembly. * An upgraded seal kit minimizes leaks—especially in high-rebound applications * The compression tube uses a slip fit design to simplify the rebuild process * 5Q shocks utilize a laser-engraved, black-anodized closure nut to make serial numbers and valving easy to read at the track or in the shop * Coilover compatible Note: QA1's steel body shocks can be used in coil-over configurations using the appropriate kits (sold separately). Racers can rebuild and re-valve their own shocks using available tuning and rebuild kits.
Not Yet Reviewed
$1,059.95
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$1,826.95
QA1 6Q Series Twin-Tube Shocks
QA1's rebuildable 6Q twin-tube shocks offer the performance, consistency and tunability racers demand. Formerly known as 60 and 62 Series shocks, the 6Q series is an aluminum large-body shock. The threaded body makes it very easy to use in coil-over configurations with QA1 kits (sold separately). Racers can choose from 6 in., 7 in., 8 in., and 9 in. bearing mount shocks depending on rules and applications. The shocks are also available with rebound adjustability to easily dial-in valving at the track. Small details add up to provide great overall performance. The scalloped base loop increases clearances in tight areas like upper control arms and shock mounts. Pistons are made of high-quality raw aluminum to maximize consistency. You can valve the shock with bleed shims or drill out bleeds to maximize tunability. Order the QA1 6Q Series twin-tube shock model for your application needs. Features: * Applications: Late Models, Asphalt Modifieds, Sprint Cars * 6Q shocks can be re-valved and rebuilt by racers in a matter of minutes using basic tools * The gland features relief cuts and a hyper screw port, making shocks easy to fill and bleed on assembly * An upgraded seal kit minimizes leaks—especially in high-rebound applications * The compression tube uses a slip fit design to simplify the rebuild process * Laser-engraved, black-anodized closure nuts make serial numbers and valving easy to read at the track or in the shop * Racers can rebuild and re-valve their own shocks using available kits (sold separately) * Coilover compatible
Not Yet Reviewed
$1,059.95
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$1,826.95
QA1 26 Series IMCA-Legal Steel Monotube Shocks
QA1 26 Series IMCA-legal steel monotube shocks feature one-piece body designs that can be revalved, repaired, and rebuilt to keep you consistent on the track, and they offer disabled gas tuning, making them legal for all IMCA races. The shocks are designed with large pistons for unmatched, stable valving. They also have centerless-ground, hard chrome plated, gun-drilled piston rods to eliminate rod flex and keep valving steady, again and again. QA1 26 Series IMCA-legal steel monotube shocks use a premium proprietary blend of specially engineered oil to prevent fade and can be mounted upside-down with no change in rate to reduce unsprung weight.
Not Yet Reviewed
$219.95
QA1 MOD Series Coilover Shocks
QA1 MOD Series coilover shocks 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. Additional benefits and features of QA1 MOD Series shocks: * 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
( 1 )
$919.95
QA1 27 Series Stock Mount Monotube Shocks
QA1 27 Series shocks are stock-mount monotubes featuring zinc plated bodies, 46mm hard anodized pistons, and multiple valving options. Their versatile mounting configurations make them great choices for multiple Circle Track racing classes—making it simple for racers to get on the track and achieve the performance they want. Available in hyperscrew and sealed hyperscrew, QA1 27 Series shocks are a popular option for street stocks, hobby stocks, mini stocks, and other classes that require stock mount shocks. QA1 27 Series shocks also feature: * Deflective disc valving * Damping curve allows for complete control of suspension at low shaft speeds without creating extreme forces at high shaft velocities * Linear valving provides a more stable car and allows the driver to feel the car better * Non-fading * Racer-designed revalveable and rebuildable parts for unparalleled repeatability * 100 percent dyno-tested and serialized
Not Yet Reviewed
$239.95
QA1 26 Series Steel Monotube Shocks
Receive unparalleled racer repeatability with QA1 26 Series monotube shocks. These one-piece body designs are revalveable, repairable, and rebuildable to keep you consistent on the track. Tunable gas pressure lets you make quick adjustments to meet current track conditions—and they're non-fading, so your gas pressure remains unchanging, even on the roughest Circle Tracks! QA1 26 Series shocks are designed with large pistons for unmatched, stable valving and with centerless-ground, gun-drilled piston rods to eliminate rod flex and keep valving steady, again and again. And, you can run your 26 Series shocks upside-down to reduce unsprung weight. Increase your traction while making the rounds with QA1 26 Series steel monotube shocks, available in a variety of extended/collapsed lengths.
( 2 )
$209.95
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$329.95
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
$2,006.95
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$2,366.95
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 1963-72 C10 Coilover Conversion Systems
Upgrade your classic truck to a modern driving feel and performance with QA1's 1963-1972 C10 coilover conversion systems. The kits come with everything you need to convert your C10's front end to coilovers and a tubular crossmember with rack-and-pinion steering. These systems are a great way to overhaul your suspension in one go, giving you adjustable ride height to achieve the perfect stance with up to 8 in. of drop—all while dialing in the ideal ride quality and performance for your application while reducing weight 140 lbs. over stock. Order the QA1 1963-72 C10 coilover conversion system recommended for your year/make and model vehicle. Product features and details: * Powered rack-and-pinion offers quicker steering and a tighter feel. Plus, increase steering angle when fitting larger wheels and tires, and improve geometry for enhanced drivability * Increased Ground Clearance: The crossmember and control arms make your undercab rails the truck's lowest point—new upper shock mounts increase travel for a great ride and performance, even at low ride heights * Adjustable Shock Valving: Double-adjustable shocks offer independent rebound and compression tunability—great for trucks that will see track time or drivers who really want to dial in ride quality on the street * Easy, Bolt-In Installation: The crossmember comes powder coated and ready to install—no need to cut or weld your frame—it easily locates the steering rack, and you can choose mounts (sold separately) for common engines * Modular Engine Mounts: Choose from modular engine mounts (sold separately) that allow you to reuse your existing transmission mount and driveshaft (kits are available for small block Chevy, big block Chevy and LS applications—DIY mounts are also available if you want to customize the location of your engine * Front Sway Bar: The optional front sway bar (sold separately) adds even more cornering capabilities—it reduces body roll and keeps your tires planted to give you more grip in the turns Fitment Notes: * If you already have QA1's coil-over system, you can find retrofit kits to use your existing components * Total drop range depends on wheel/tire fitment * Will require you to trim inner fenders * Engine mounts are year-range specific to maintain OE bellhousing location * Optimized bump steer settings require at least 18 in. wheels -- 18 in. wheels can run up to 6 in. of backspacing -- 20 in. wheels can run up to 7 in. of backspacing * Requires use of C10 spindles * May require different headers and oil pan (Stock SBC and BBC pans fit) * Steering shaft is not included * May require new power steering hoses depending on fittings, pump, and engine placement
( 5 )
$4,450.95
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$5,775.95
QA1 1973-87 C10 Coilover Conversion Systems
Upgrade your square body Chevy C10's driving feel and performance while getting the perfect stance with QA1's 1973-1987 C10 coilover conversion systems. The kits come with everything you need to convert your C10's front end to coilovers and a tubular crossmember with rack-and-pinion steering. These coilover conversion systems are a great way to overhaul your suspension in one go, giving you adjustable ride height to achieve the perfect stance with up to 8 in. of drop—all while dialing in the ideal ride quality and performance for your application while also reducing weight 140 lbs. over stock. Order the QA1 1973-87 C10 coilover conversion system recommended for your year/make and model vehicle. Product features and details: * Powered rack-and-pinion offers quicker steering and a tighter feel. Plus, increase steering angle when fitting larger wheels and tires, and improve geometry for enhanced drivability * Increased Ground Clearance: The crossmember and control arms make your undercab rails the truck's lowest point—new upper shock mounts increase travel for a great ride and performance, even at low ride heights * Single or double-adjustable shock valving offers independent rebound and compression tunability—great for trucks that will see track time or drivers who really want to dial in ride quality on the street * Easy, Bolt-In Installation: The crossmember comes powder coated and ready to install—no need to cut or weld your frame—it easily locates the steering rack, and you can choose mounts (sold separately) for common engines * Modular Engine Mounts: Choose from modular engine mounts (sold separately) that allow you to reuse your existing transmission mount and driveshaft (kits are available for small block Chevy, big block Chevy and LS applications—DIY mounts are also available if you want to customize the location of your engine * Front Sway Bar: The optional front sway bar (sold separately) adds even more cornering capabilities—it reduces body roll and keeps your tires planted to give you more grip in the turns Fitment Notes: * If you already have QA1's coil-over system, you can find retrofit kits to use your existing components * Total drop range depends on wheel/tire fitment * Will require you to trim inner fenders * Engine mounts are year-range specific to maintain OE bellhousing location * Optimized bump steer settings require at least 18 in. wheels -- 18 in. wheels can run up to 6 in. of backspacing -- 20 in. wheels can run up to 7 in. of backspacing * Requires use of 1973-1987 C10 spindles * May require different headers and oil pan (Stock SBC and BBC pans fit) * Steering shaft is not included * May require new power steering hoses depending on fittings, pump, and engine placement
( 1 )
$4,450.95
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$5,775.95
