Upgrade your 73-87 Square Body with the QA1 Double Adjustable Front Coilover Crossmember System for improved driving performance and the perfect stance. This kit offers everything you need to convert your C10's front end to coil-overs and a tubular crossmember with rack-and-pinion steering, giving you an adjustable ride height with up to 8” of drop. Shed 140 lbs. compared to stock while dialing in ideal ride quality and performance.

Features:

Rack and Pinion Steering: Provides quicker, more responsive steering with improved geometry and increased steering angle for larger wheels and tires.
Increased Ground Clearance: The raised crossmember and control arms position the undercab frame rails as the truck's lowest point, improving ground clearance.
Double Adjustable Shocks: Tune both compression and rebound independently for maximum control over ride quality and performance.
Easy, Bolt-On Installation: Powder-coated crossmember arrives ready to install without the need for cutting or welding.
Modular Engine Mounts: Available for Small Block Chevy, Big Block Chevy, and LS engines (sold separately), with DIY options for custom placement.

Optional Front Sway Bar: The optional sway bar (sold separately) further enhances cornering performance by reducing body roll and improving grip.

Fitment Notes:

Retrofit kits available for existing QA1 coil-over systems.
Requires 1973-1987 C10 spindles and trimming of inner fenders.
Optimized bump steer requires at least 18” wheels with appropriate backspacing.
May require different headers, oil pan, and new power steering hoses depending on engine setup.

Installation Guide