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 1990-1993 Ford Mustang Proma Star Coilover Strut Kit Single Adjust
✓ In Stock • Only 4 leftRegular price $ 1,605.58Regular price$ 1,766.14Sale price $ 1,605.58Sale -
Vendor:QA1
QA1 1978-1988 GM G-Body 12-200 Kit Rear Pro-Coil S-Adj
✓ In Stock • Only 1 leftRegular price $ 936.58Regular price$ 1,030.24Sale price $ 936.58Sale -
Vendor:QA1
QA1 1963-1987 Chevrolet C10 Sway Bar Kit 1-3/8in - Front
✓ In Stock • Only 4 leftRegular price $ 517.08Regular price$ 568.79Sale price $ 517.08Sale -
Vendor:QA1
QA1 1973-1987 C10 Small Block/Big Block Engine Mount Kit with QA1 Crossmember
✓ In Stock • Only 3 leftRegular price $ 199.98Regular price$ 219.98Sale price $ 199.98Sale -
Vendor:QA1
QA1 1963-1987 C10 LS Engine Mount Kit
✓ In Stock • Only 4 leftRegular price $ 199.98Regular price$ 219.98Sale price $ 199.98Sale -
Vendor:QA1
QA1 1963-1972 Chevrolet C10 Rear Coil-Over Conversion System - Medium - Double Adjustable (200lbs/in)
✓ In Stock • Only 2 leftRegular price $ 1,516.65Regular price$ 1,668.32Sale price $ 1,516.65Sale -
Vendor:QA1
QA1 1973-1987 Chevy C10 Rear Suspension Conversion System - Firm - GM 10 Bolt - Double Adj. (250lbs/in)
✓ In Stock • Only 2 leftRegular price $ 3,556.22Regular price$ 3,911.85Sale price $ 3,556.22Sale -
Vendor:QA1QA1 1963-1972 Chevrolet C10 Rear Suspension Conversion System - Firm - Double Adjustable (250lbs/in)
✓ In Stock • Only 1 leftRegular price $ 3,268.64Regular price$ 3,595.51Sale price $ 3,268.64Sale -
Vendor:QA1
QA1 1963-1972 Chevrolet C10 Rear Suspension Conversion System - Medium - Double Adjustable (200lbs/in)
✓ In Stock • Only 2 leftRegular price $ 3,268.64Regular price$ 3,595.51Sale price $ 3,268.64Sale -
Vendor:QA1
QA1 1973-1987 Chevy C10 Rear Suspension Conversion System - Soft - GM 10 Bolt - Single Adj. (170lbs/in)
✓ In Stock • Only 1 leftRegular price $ 3,393.35Regular price$ 3,732.69Sale price $ 3,393.35Sale -
Vendor:QA1QA1 1965-1972 Ford F100 Rear Coil-Over Conversion System - Medium - Single Adjustable (200lbs/in)
✓ In Stock • Only 1 leftRegular price $ 3,393.35Regular price$ 3,732.69Sale price $ 3,393.35Sale -
Vendor:QA1
QA1 1963-1972 Chevrolet C10 Rear Suspension Conversion System - Medium - Single Adjustable (200lbs/in)
✓ In Stock • Only 2 leftRegular price $ 3,105.77Regular price$ 3,416.35Sale price $ 3,105.77Sale -
Vendor:QA1QA1 1965-1979 Ford F100 Front Coil-Over Conversion Kit (3-5in Drop) - Single Adjustable (500lbs/in)
✕ Out of StockRegular price $ 4,741.18Regular price$ 5,215.30Sale price $ 4,741.18Sold out -
Vendor:QA1
QA1 1963-1987 Chevrolet C10 (with UCA) Front Coil-Over Conversion Kit - Single Adjustable (850lbs/in)
✕ Out of StockRegular price $ 2,630.34Regular price$ 2,893.38Sale price $ 2,630.34Sold out -
Vendor:QA1
QA1 1963-1987 Chevrolet C10 (with UCA) Front Coil-Over Conversion Kit - Single Adjustable (750lbs/in)
✓ In Stock • Only 2 leftRegular price $ 2,630.34Regular price$ 2,893.38Sale price $ 2,630.34Sale -
Vendor:QA1
QA1 1963-1987 Chevrolet C10 (with UCA) Front Coil-Over Conversion Kit - Single Adjustable (650lbs/in)
✕ Out of StockRegular price $ 2,630.34Regular price$ 2,893.38Sale price $ 2,630.34Sold out