Overview

Speedtech Performance USA 1967-72 C10 Truck ExtReme Street Chassis Kits

Speedtech Performance USA ExtReme Street chassis kits are built for 1967-1972 C10 owners who want aggressive stance with the comfort and drivability of a true street truck. Designed for trucks that get driven, not just displayed—they deliver wide tire fitment, improved traction, reduced wheel hop, and confident handling without sacrificing ride quality. Featuring Speedtech's proven ExtReme front suspension geometry, rear torque arm suspension, and QA1 Ultra Ride single adjustable shocks, these chassis kits deliver modern performance with true street comfort. You can get the low, wide look your C10 deserves without compromising suspension travel or street manners. Designed around modern wheel and tire packages, the ExtReme Street Chassis delivers the pro-touring stance builders want while maintaining proper geometry and real-world usability.

Equipped with QA1 Ultra Ride 18-way single adjustable shocks, these chassis kits allow you to fine-tune ride quality for the right balance of comfort and performance. The included rack-and-pinion steering and optimized front geometry deliver up to 30 degrees of steering angle, tighter response, better feedback, and improved confidence behind the wheel; while the rear torque arm suspension improves traction and reduces wheel hop. Box-welded construction with internal gusseting delivers the strength to handle modern horsepower, wide tire setups, and the demands of long-term performance. The result is a truck that feels more planted under acceleration, more stable through corners, and smoother over rough roads.

Fitment Notes:

* Fits 1967–1972 Chevrolet and GMC 1/2-ton trucks
* Short bed applications only - will not fit long wheelbase trucks
* Raised bed floor modifications (3.5–4 in.) required
* Factory steering columns are not compatible. Speedtech recommends an Ididit steering column for proper fitment
* Fits up to a 315mm front and rear tires with full steering travel, using 10.5 in. front and 11–12 in. rear wheel setups
* Requires a power steering pump capable of 1,300 psi and 3 gpm flow rate
* Ford 9 in. rear housing (3rd member not included) measures 61 in. flange to flange

Chassis kit includes:

* Speedtech ExtReme Street chassis with satin black powdercoated finish
* Sweet Manufacturing dual piston rack and pinion steering
* Rear torque arm suspension system with Ford 9 in. housing
* 31-spline axles
* Adjustable universal transmission crossmember
* QA1 Ultra Ride coilover shocks
* Control arms
* Tall 1st Gen F-body front spindles
* Front sway bar
* Battery box
* Body mounts

Applications

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