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Full-Vehicle Suspension Kits & Systems

Upgrade all four corners of your muscle car, street car or hot rod with coil-over shocks and tubular suspension components.

Shocks, Struts & Coil-Overs

Custom or stock mount shocks, struts and coil-overs for classic cars, hot rods and modern muscle.

Control Arms & Other Tubular Components

Replace worn-out, rusty factory components with our expansive line of bolt-on tubular performance suspension components, including sway bars, K-members, control arms and more.


Springs for muscle cars, hot rods and classic trucks. Guaranteed to remain within 2% of the original free height and rate under normal operating conditions.


Accessories for QA1 shocks and suspension parts, including replacement hardware, mounting brackets, shock mounting conversion kits, bushings and spanner wrenches.

Modern Truck Suspension Systems

QA1's Modern Truck suspension is designed to give your truck a better stance, while significantly improving ride quality and performance. Whether you’re looking for a mild 2-3 drop, or a more aggressive 4/6 drop, these kits are the ideal solution for your Silverado or F150.

Classic Truck Suspension Systems

Engineered to make your truck handle while giving you ride height adjustability to dial in the perfect stance, these front and rear coil-over suspension kits overhaul your classic pickup to improve performance and driveability.

Big Wheel Suspension

Mopar Coil-Over Conversion Systems

Upgrade your Classic Mopar A, B and E Body with front and rear coil-over suspension systems that improve everyday drivability, performance and ride quality. Perfect for everything from street cruisers to dedicated autocross, drag and road racing cars.

DIY Suspension Parts

Custom REV™ Series Carbon Fiber Driveshafts

QA1 offers custom carbon fiber driveshafts for GM, Ford, and Mopar vehicles, including Chevelles, Chargers, Mustangs, and more.