QA1 MOD Series Front Coil-Over and Crossmember Conversion Kit; 750 lb./in. Spring Rate (73-74 C10)

Upgrade your Square Body C10 for much-improved driving feel and performance while getting the perfect stance. This kit has everything you need to convert your Chevy C10 front suspension to coil-overs and a tubular crossmember with rack-and-pinion steering. It’s a great way to overhaul your C10 suspension in one go, giving you adjustable ride height for the perfect stance with up to 8” of drop. All while dialing in the ideal ride quality and performance for your application, and saving 140 lbs. vs stock.

Rack and Pinion Steering
Powered rack-and-pinion offers quicker steering and a tighter feel. Plus, increase steering angle when fitting larger wheels and tires, and improve geometry for enhanced drivability.

Increased Ground Clearance
The crossmember and control arms make your undercab rails the truck’s lowest point. New upper shock mounts increase travel for a great ride and performance, even at low ride heights.

Adjustable Shock Valving
MOD Series Shocks offer advanced high-speed and low-speed adjustment for maximum tunability. The modular valve packs and force curves are made for top-tier drag racing and pro touring drivers.

Easy, Bolt-In Installation
The crossmember comes powder coated and ready to install. No need to cut or weld your frame. It easily locates the steering rack, and you can choose mounts (sold separately) for common engines.

Modular Engine Mounts
Choose from modular engine mounts (sold separately) that allow you to reuse your existing transmission mount and driveshaft. Kits are available for small block Chevy, big block chevy and LS applications. DIY mounts are also available if you want to customize the location of your engine.

SBC/BBC mounts for 63-66 and 73-87 C10s
SBC/BBC mounts for 67-72 C10s
LS mounts for 63-87 C10s
DIY SBC/BBC mounts
DIY LS/LT mounts
Front Sway Bar
The optional front sway bar (sold separately) adds even more cornering capabilities. It reduces body roll and keeps your tires planted to give you more grip in the turns.

Fitment Notes
If you already have QA1’s coil-over system, you can find retrofit kits to use your existing components
Total drop range depends on wheel/tire fitment
Will require you to trim inner fenders
Engine mounts are year-range specific to maintain OE bellhousing location
Optimized bump steer settings require at least 18” wheels
18” wheels can run up to 6” of backspacing
20” wheels can run up to 7” of backspacing
Requires use of 1973-1987 C10 spindles
May require different headers and oil pan (Stock SBC & BBC pans fit)
Steering shaft is not included
May require new power steering hoses depending on fittings, pump and engine placement

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