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 90-93 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 -
Vendor:QA1
QA1 78-88 GM G-Body 12-200 Kit Rear Pro-Coil S-Adj
✕ Out of StockRegular price $ 886.95Regular price$ 975.65Sale price $ 886.95Sold out -
Vendor:QA1
QA1 63-87 Chevrolet C10 Sway Bar Kit 1-3/8in - Front
✓ In Stock • Ready to ShipRegular price $ 489.95Regular price$ 538.95Sale price $ 489.95Sale -
Vendor:QA1
QA1 73-87 C10 Small Block/Big Block Engine Mount Kit w/ QA1 Crossmember
✓ In Stock • Ready to ShipRegular price $ 185.07Regular price$ 203.58Sale price $ 185.07Sale -
Vendor:QA1
QA1 63-87 C10 LS Engine Mount Kit
✓ In Stock • Ready to ShipRegular price $ 185.07Regular price$ 203.58Sale price $ 185.07Sale -
Vendor:QA1QA1 63-72 Chevrolet C10 Rear Coil-Over Conversion System - Medium - Double Adjustable (200lbs/in)
✓ In Stock • Ready to ShipRegular price $ 1,474.95Regular price$ 1,622.45Sale price $ 1,474.95Sale -
Vendor:QA1QA1 73-87 Chevy C10 Rear Suspension Conversion System - Firm - GM 10 Bolt - Double Adj. (250lbs/in)
✓ In Stock • Ready to ShipRegular price $ 3,270.19Regular price$ 3,597.21Sale price $ 3,270.19Sale -
Vendor:QA1QA1 63-72 Chevrolet C10 Rear Suspension Conversion System - Firm - Double Adjustable (250lbs/in)
✓ In Stock • Ready to ShipRegular price $ 3,101.95Regular price$ 3,412.15Sale price $ 3,101.95Sale -
Vendor:QA1QA1 63-72 Chevrolet C10 Rear Suspension Conversion System - Medium - Double Adjustable (200lbs/in)
✕ Out of StockRegular price $ 3,101.95Regular price$ 3,412.15Sale price $ 3,101.95Sold out -
Vendor:QA1QA1 73-87 Chevy C10 Rear Suspension Conversion System - Soft - GM 10 Bolt - Single Adj. (170lbs/in)
✓ In Stock • Ready to ShipRegular price $ 3,063.24Regular price$ 3,369.57Sale price $ 3,063.24Sale -
Vendor:QA1
QA1 65-72 Ford F100 Rear Coil-Over Conversion System - Medium - Single Adjustable (200lbs/in)
✓ In Stock • Ready to ShipRegular price $ 3,063.24Regular price$ 3,369.57Sale price $ 3,063.24Sale -
Vendor:QA1QA1 63-72 Chevrolet C10 Rear Suspension Conversion System - Medium - Single Adjustable (200lbs/in)
✕ Out of StockRegular price $ 2,887.95Regular price$ 3,176.75Sale price $ 2,887.95Sold out -
Vendor:QA1QA1 65-79 Ford F100 Front Coil-Over Conversion Kit (3-5in Drop) - Single Adjustable (500lbs/in)
✓ In Stock • Ready to ShipRegular price $ 4,296.31Regular price$ 4,725.95Sale price $ 4,296.31Sale -
Vendor:QA1
QA1 63-87 Chevrolet C10 (w/UCA) Front Coil-Over Conversion Kit - Single Adjustable (850lbs/in)
✓ In Stock • Ready to ShipRegular price $ 2,506.95Regular price$ 2,757.65Sale price $ 2,506.95Sale -
Vendor:QA1
QA1 63-87 Chevrolet C10 (w/UCA) Front Coil-Over Conversion Kit - Single Adjustable (750lbs/in)
✓ In Stock • Ready to ShipRegular price $ 2,506.95Regular price$ 2,757.65Sale price $ 2,506.95Sale -
Vendor:QA1
QA1 63-87 Chevrolet C10 (w/UCA) Front Coil-Over Conversion Kit - Single Adjustable (650lbs/in)
✓ In Stock • Ready to ShipRegular price $ 2,506.95Regular price$ 2,757.65Sale price $ 2,506.95Sale