Chris Alston’s Chassisworks – Independent Rear Suspension

gStreet Independent Rear Suspensions for Muscle Cars

The Chassisworks gStreet IRS is an exceptionally capable system intended for the most demanding high horsepower, road handling applications. Offered as a replacement back-half or full-chassis system, the gStreet IRS is based upon a robust, mandrel-bent 4×2” frame clip with fully-boxed 2×2” suspension mounting crossmembers and fabricated upper cradle.

The system features Chassisworks legendary FAB9 center section fitted with a series of six poly-bushing mounts to firmly hold the assembly, while reducing higher frequency vibration and road noise. The extremely stable center section and high-strength, 35-spline halfshaft assemblies are capable of dependably delivering over 1,500 horsepower.

Two different suspension configurations are available; a traditional lower control arm mounted coilover and a rocker-arm-actuated, trunk-floor-mounted, coil-over for reduced unsprung weight and further enhanced road holding ability. To ensure consistent and correct geometry during hard cornering and acceleration, all suspension mounts are tied directly to the frame through use of deflection-free spherical bearings.

Chassisworks exclusive low-friction pivot-ball assemblies are used in their double-shear configuration at the control arm to chassis mounts and the lower arm to spindle, while a pivoting-stud configuration is integrated directly into the upper end of the billet-aluminum upright.

Chassisworks gStreet