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 GM Pro Front Coil-Over System - MOD Series - 10in x 450lbs/in - Pigtail - Aluminum
✓ In Stock • Only 1 leftRegular price $ 2,010.16Regular price$ 2,211.18Sale price $ 2,010.16Sale -
Vendor:QA1
QA1 67-73 Ford Mustang Pro Front Coil-Over System - Double Adj. - 10in x 400lbs/in - Aluminum
✓ In Stock • Only 1 leftRegular price $ 1,088.66Regular price$ 1,197.53Sale price $ 1,088.66Sale -
Vendor:QA1
QA1 MCOM-T Series Bearing - 16mm Bore - Heat Treated Chrome Plated Chromoly Steel w/PTFE
✓ In Stock • Ready to ShipRegular price $ 20.70Regular price$ 22.77Sale price $ 20.70Sale -
Vendor:QA1QA1 MOD Series Coil-Over Shock Absorber - Piggyback - Right Hand - Bearing Mount - 14.875in/23.625in
✕ Out of StockRegular price $ 919.95Regular price$ 1,011.95Sale price $ 919.95Sold out -
Vendor:QA1QA1 MOD Series Coil-Over Shock Absorber - Piggyback - Left Hand - Bearing Mount - 14.875in/23.625in
✕ Out of StockRegular price $ 919.95Regular price$ 1,011.95Sale price $ 919.95Sold out -
Vendor:QA1QA1 MOD Series Coil-Over Shock Absorber - Piggyback - Right Hand - Bearing Mount - 11.5in/16.875in
✓ In Stock • Only 1 leftRegular price $ 919.95Regular price$ 1,011.95Sale price $ 919.95Sale -
Vendor:QA1
QA1 K Series 3-Pc Rod End - Male/Right Hand - .75in Bore x 3/4-16 w/Zerk - Carbon Steel
✓ In Stock • Only 2 leftRegular price $ 27.59Regular price$ 30.35Sale price $ 27.59Sale -
Vendor:QA1
QA1 Jam Nut - 1/2-20 Right Hand - 3/4in Hex 5/16in Wide - Steel
✕ Out of StockRegular price $ 5.16Regular price$ 5.68Sale price $ 5.16Sold out -
Vendor:QA1
QA1 Jam Nut - 3/8-24 Right Hand - 9/16in Hex 7/32in Wide - Steel
✓ In Stock • Ready to ShipRegular price $ 4.90Regular price$ 5.39Sale price $ 4.90Sale -
Vendor:QA1
QA1 Jam Nut - 5/8-18 Right Hand - 15/16 Hex 3/8in Wide - Steel
✓ In Stock • Ready to ShipRegular price $ 5.39Regular price$ 5.93Sale price $ 5.39Sale -
Vendor:QA1
QA1 Jam Nut - 1/2-20 Left Hand - 3/4in Hex 5/16in Wide - Steel
✓ In Stock • Ready to ShipRegular price $ 5.22Regular price$ 5.75Sale price $ 5.22Sale -
Vendor:QA1
QA1 Jam Nut - 3/8-24 Left Hand - 9/16in Hex 7/32in Wide - Steel
✓ In Stock • Ready to ShipRegular price $ 4.93Regular price$ 5.43Sale price $ 4.93Sale -
Vendor:QA1
QA1 Jam Nut - 10-32 Left Hand - 3/8in Hex 1/8in Wide - Steel
✕ Out of StockRegular price $ 4.74Regular price$ 5.22Sale price $ 4.74Sold out -
Vendor:QA1
QA1 Jam Nut - 3/4-16 Left Hand - 1-1/8in Hex 7/16in Wide - Steel
✓ In Stock • Ready to ShipRegular price $ 6.74Regular price$ 7.42Sale price $ 6.74Sale -
Vendor:QA1
QA1 H Series 3-Pc Rod End - Male/Right Hand - .625in Bore x 5/8-18 - Alloy Steel w/PTFE
✓ In Stock • Ships from manufacturerRegular price $ 55.73Regular price$ 61.31Sale price $ 55.73Sale -
Vendor:QA1
QA1 H Series 3-Pc Rod End - Male/Left Hand - .625in Bore x 5/8-18 - Alloy Steel w/PTFE
✓ In Stock • Only 2 leftRegular price $ 33.81Regular price$ 37.20Sale price $ 33.81Sale