Firebird 1970-81 Tubular Control Arms Stock Spring Application with Del-A-Lum bushing # CTA-71L

The Global West Suspension tubular lower arms are perfect for stock or performance suspension upgrades. Both arms are supplied with ball joints, bump stops, control arm bushings, and an innovative rotating spring cushion. The control arms also provide additional header tube clearance, requires no frame modifications and are pre-assembled for your convenience. These arms are made for the 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, and 1981 Firebird

The Global West Advantage: Why a rotating spring mount?

There are a three reasons why we built a rotating spring pocket:

1. A lot of people cut the coil spring to obtain a desired ride height. When you cut the spring, the spring will no longer line up in the lower arm or upper frame mount. In some cases, this can cause the spring to make noise rubbing on the edge of the pocket. The spring cushion solves the rubbing issue and by rotating it, the cushion provides a way to re-index the spring.

2. The spring will be indexed properly around the coil. You will notice most tubular lower control arms have a flat plate that the spring sits on. There really is no index. This places a lot of load at the very end of the coil spring rather than on the full coil. Over time, this will fatigue the coil spring and sag may occur.

3. Ride height adjustments can be made by shimming under the spring pocket.

Two types of lower arms for standard springs are available, either with Del-a-lum bushings or polyurethane.

Part # CTA-71L --- uses Del-a-lum bushings

Part # CTA-71LP --- uses polyurethane bushings