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 2-1/2in ID High Travel Spring - 10in Length x 350lbs/in - Silver Powder Coated
✓ In Stock • Ready to ShipRegular price $ 82.67Regular price$ 90.94Sale price $ 82.67Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 10in Length x 300lbs/in - Black Powder Coated
✓ In Stock • Ready to ShipRegular price $ 79.95Regular price$ 87.95Sale price $ 79.95Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 10in Length x 300lbs/in - Silver Powder Coated
✓ In Stock • Ready to ShipRegular price $ 90.62Regular price$ 99.69Sale price $ 90.62Sale -
Vendor:QA1
QA1 99-06 Chevy Silverado 1500 2WD Bump Steer Kit
✕ Out of StockRegular price $ 208.67Regular price$ 229.54Sale price $ 208.67Sold out -
Vendor:QA1
QA1 C Series 2-Pc Rod End - Male/Left Hand - .5in Bore x 1/2-20 - Carbon Steel w/ Jam Nut
✓ In Stock • Ready to ShipRegular price $ 21.52Regular price$ 23.68Sale price $ 21.52Sale -
Vendor:QA1
QA1 C Series 2-Pc Rod End - Male/Right Hand - .5in Bore x 1/2-20 - Carbon Steel w/ Jam Nut
✓ In Stock • Ready to ShipRegular price $ 21.52Regular price$ 23.68Sale price $ 21.52Sale -
Vendor:QA1
QA1 99-06 Chevrolet Silverado 1500 2WD 1-1/2in Front Sway Bar
✓ In Stock • Ready to ShipRegular price $ 474.95Regular price$ 522.45Sale price $ 474.95Sale -
Vendor:QA1
QA1 99-06 Chevrolet Silverado 1500 2WD Upper Control Arm Kit
✓ In Stock • Ready to ShipRegular price $ 549.95Regular price$ 604.95Sale price $ 549.95Sale -
Vendor:QA1QA1 73-87 Chevrolet C10 Double Adjustable Front Coilover Crossmember System w/ 650lb/in Springs
✓ In Stock • Ready to ShipRegular price $ 4,662.42Regular price$ 5,128.67Sale price $ 4,662.42Sale -
Vendor:QA1
QA1 21-25 Ford F150 Dual Adjustable Rear Lowering Kit (3.5in-5.5in)
✓ In Stock • Ready to ShipRegular price $ 1,338.95Regular price$ 1,472.85Sale price $ 1,338.95Sale -
Vendor:QA1
QA1 21-25 Ford F150 2in Drop Spindle - Pair
✓ In Stock • Ready to ShipRegular price $ 660.99Regular price$ 727.09Sale price $ 660.99Sale -
Vendor:QA1
QA1 2021+ Ford F150 2WD Single Adjustable Lowering Kit (3.5in-5.5in)
✓ In Stock • Ready to ShipRegular price $ 2,191.95Regular price$ 2,411.15Sale price $ 2,191.95Sale -
Vendor:QA1
QA1 68-72 GM X-Body Rear Four Link Suspension System
✕ Out of StockRegular price $ 2,597.95Regular price$ 2,857.75Sale price $ 2,597.95Sold out -
Vendor:QA1
QA1 70-81 GM F-Body Rear Four Link Suspension System
✓ In Stock • Ready to ShipRegular price $ 2,383.95Regular price$ 2,622.35Sale price $ 2,383.95Sale -
Vendor:QA1
QA1 67-69 GM F-Body Double Adjustable Rear Four Link Suspension System
✓ In Stock • Ready to ShipRegular price $ 2,597.95Regular price$ 2,857.75Sale price $ 2,597.95Sale -
Vendor:QA1
QA1 67-69 GM F-Body Rear Four Link Suspension System
✓ In Stock • Ready to ShipRegular price $ 3,687.95Regular price$ 4,056.75Sale price $ 3,687.95Sale