Collection: QA1

Performance Suspension. Since 1993.
QA1
QA1 started in 1993 building rod ends, spherical bearings and custom linkages for racers, then moved into shock manufacturing with the purchase of Hal Shocks in 1998 and Carrera Shocks in 2004. Today the company designs and builds shocks, struts, suspension components and carbon composite driveshafts in more than 100,000 square feet of its own manufacturing space in Lakeville, Minnesota, under an ISO 9001 certified quality system.
Single & Double Adjustable DampingBuilt in Lakeville, MinnesotaISO 9001 Certified
What We Carry from QA1
Pro Coil, Proma Star & Stocker Star coil-over shocks
Full-vehicle suspension kits for GM A/B/G/F/X-body, Mopar & Mustang
Tubular control arms, K-members, sway bars & crossmembers
Rod ends, spherical bearings, jam nuts & linkages
REV Series carbon fiber driveshafts
Big Wheel suspension kits & C10 conversion systems
QA1 builds for street performance, drag racing, circle track and street rods — most shocks are single or double adjustable, so ride and rebound can be dialed in after the car is on the ground.
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Vendor:QA1
QA1 71-96 GM B-Body Big Wheel Sway Bar Kit Rear 1-1/4in
✓ In Stock • Ready to ShipRegular price $ 499.95Regular price$ 549.95Sale price $ 499.95Sale -
Vendor:QA1
QA1 67-69 GM F-Body 4-Link Sway Bar Kit Rear 7/8in
✓ In Stock • Ready to ShipRegular price $ 348.95Regular price$ 383.85Sale price $ 348.95Sale -
Vendor:QA1
QA1 78-88 GM G-Body Big Wheel Sway Bar Kit Front 1-3/8in
✓ In Stock • Ready to ShipRegular price $ 473.95Regular price$ 521.35Sale price $ 473.95Sale -
Vendor:QA1
QA1 71-76 GM B-Body Sway Bar Kit Front 1-3/8in
✓ In Stock • Ready to ShipRegular price $ 416.95Regular price$ 458.65Sale price $ 416.95Sale -
Vendor:QA1
QA1 1.625in Components Ball Joint Kit
✕ Out of StockRegular price $ 50.02Regular price$ 55.03Sale price $ 50.02Sold out -
Vendor:QA1
QA1 67-69 GM F-Body Subframe Connector Kit
✓ In Stock • Ready to ShipRegular price $ 535.95Regular price$ 589.55Sale price $ 535.95Sale -
Vendor:QA1
QA1 94-04 Ford Mustang Control Arm Kit Lower Street Perform
✓ In Stock • Ready to ShipRegular price $ 479.95Regular price$ 527.95Sale price $ 479.95Sale -
Vendor:QA1
QA1 71-76 GM B-Body Control Arm Kit Lower Street Perform
✓ In Stock • Ready to ShipRegular price $ 854.95Regular price$ 940.45Sale price $ 854.95Sale -
Vendor:QA1
QA1 07-18 Chevrolet Silverado 4WD 10-950 Kit Front Pro-Coil D-Adj
✓ In Stock • Ready to ShipRegular price $ 1,280.95Regular price$ 1,409.05Sale price $ 1,280.95Sale -
Vendor:QA1
QA1 78-88 GM G-Body 12-200 Kit Rear Pro-Coil D-Adj
✕ Out of StockRegular price $ 1,109.95Regular price$ 1,220.95Sale price $ 1,109.95Sold out -
Vendor:QA1
QA1 71-76 GM B-Body 12-250 Kit Rear Pro-Coil D-Adj
✓ In Stock • Ready to ShipRegular price $ 1,049.95Regular price$ 1,154.95Sale price $ 1,049.95Sale -
Vendor:QA1
QA1 79-04 Ford Mustang 12-130 Kit Rear Pro-Coil S-Adj
✕ Out of StockRegular price $ 864.95Regular price$ 951.45Sale price $ 864.95Sold out -
Vendor:QA1
QA1 97-13 Chevrolet Corvette 8-550 X 2.25in ID Kit Pro-Coil Front Aluminum MOD
✓ In Stock • Ready to ShipRegular price $ 2,362.95Regular price$ 2,599.25Sale price $ 2,362.95Sale -
Vendor:QA1
QA1 05-14 Ford Mustang Proma Star Coilover Strut Kit Double Adjust 150lb/in.
✕ Out of StockRegular price $ 1,767.95Regular price$ 1,944.75Sale price $ 1,767.95Sold out -
Vendor:QA1
QA1 90-93 Ford Mustang Proma Star Coilover Strut Kit Double Adjust 200lb/in.
✓ In Stock • Ready to ShipRegular price $ 1,767.95Regular price$ 1,944.75Sale price $ 1,767.95Sale -
Vendor:QA1
QA1 94-04 Ford Mustang Proma Star Coilover Strut Kit Single Adjust
✓ In Stock • Ready to ShipRegular price $ 1,552.95Regular price$ 1,708.25Sale price $ 1,552.95Sale