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 - 12in Length x 170lbs/in - Silver Powder Coated
✓ In Stock • Ready to ShipRegular price $ 82.99Regular price$ 91.29Sale price $ 82.99Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 12in Length x 150lbs/in - Black Powder Coated
✓ In Stock • Only 2 leftRegular price $ 82.99Regular price$ 91.29Sale price $ 82.99Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 12in Length x 150lbs/in - Silver Powder Coated
✓ In Stock • Ready to ShipRegular price $ 83.00Regular price$ 91.30Sale price $ 83.00Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 12in Length x 130lbs/in - Silver Powder Coated
✓ In Stock • Only 2 leftRegular price $ 83.80Regular price$ 92.18Sale price $ 83.80Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 12in Length x 110lbs/in - Silver Powder Coated
✓ In Stock • Only 4 leftRegular price $ 83.80Regular price$ 92.18Sale price $ 83.80Sale -
Vendor:QA1
QA1 4-1/8in ID Tapered High Travel Spring - 11in Length x 250lbs/in - Silver Powder Coated
✓ In Stock • Ready to ShipRegular price $ 119.45Regular price$ 131.40Sale price $ 119.45Sale -
Vendor:QA1
QA1 3-1/2in ID Tapered High Travel Spring - 10in Length x 450lbs/in - Silver Powder Coated
✓ In Stock • Only 1 leftRegular price $ 118.40Regular price$ 130.24Sale price $ 118.40Sale -
Vendor:QA1
QA1 4-1/8in ID Tapered High Travel Spring - 10in Length x 450lbs/in - Silver Powder Coated
✓ In Stock • Only 1 leftRegular price $ 118.40Regular price$ 130.24Sale price $ 118.40Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 10in Length x 500lbs/in - Black Powder Coated
✓ In Stock • Only 3 leftRegular price $ 83.80Regular price$ 92.18Sale price $ 83.80Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 10in Length x 450lbs/in - Silver Powder Coated
✓ In Stock • Only 2 leftRegular price $ 83.80Regular price$ 92.18Sale price $ 83.80Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 10in Length x 200lbs/in - Black Powder Coated
✓ In Stock • Only 4 leftRegular price $ 83.80Regular price$ 92.18Sale price $ 83.80Sale -
Vendor:QA1
QA1 2-1/2in ID High Travel Spring - 10in Length x 200lbs/in - Silver Powder Coated
✓ In Stock • Ready to ShipRegular price $ 82.99Regular price$ 91.29Sale price $ 82.99Sale -
Vendor:QA1
QA1 Proma Star Series Coil-Over Shock Absorber - Single Adj. - 9in - 250lb/in - Alum
✓ In Stock • Only 3 leftRegular price $ 691.03Regular price$ 760.14Sale price $ 691.03Sale -
Vendor:QA1
QA1 96-03 Chevy S10 2WD Steering Rebuild Kit
✓ In Stock • Only 1 leftRegular price $ 493.22Regular price$ 542.55Sale price $ 493.22Sale -
Vendor:QA1QA1 97-13 Chevy Corvette Front Pro-Coilover Shock Absorber - 8in x 700lb/in - Aluminum Mod Series
✕ Out of StockRegular price $ 2,364.04Regular price$ 2,600.45Sale price $ 2,364.04Sold out -
Vendor:QA1
QA1 Linkage Rod - 5/16-24 x 4.5in Long - Carbon Steel
✓ In Stock • Ready to ShipRegular price $ 9.97Regular price$ 10.97Sale price $ 9.97Sale