1958-1964 Impala Front Tubular Lower Control Arms for Coil Springs part # CTA-84L (Sold as a Pair)

Global West Suspension sells tubular lower control arms (designed for coil springs) for the Impala, Biscayne and El Camino--model years 1958, 1959, 1960, 1961, 1962, 1963, and 1964.

The CTA-84L lower control arm (for coil spring applications) has a rotating spring pocket that allows the coil to be indexed properly, even if the coil spring is trimmed. This arm is a direct replacement, Note: the spring pocket is in the stock location and will not lower the car. Global West offers lowers spring for this application.

These tubular lower arms are supplied with ball joints, bump stops, Del-a-lum control arm bushings, special sway bar end links, and a spring cushion for indexing the coil.

Why a rotating spring mount?

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

First: 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. In this case the spring cushions solves the rubbing issue and by rotating it provides a way to re-index the spring.

Second: The spring will be indexed properly around the coil. If you 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.

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

Global West lower arms feature the following:

• Strength: (Built out of 1-5/8 inch roll cage tubing )
• Del-a-lum bushings are used for most applications
• Reinforced sway bar pick up points. Lower arm bump stops are standard
• Steering bump stops are standard
• Cross bar supporting spring pocket
• Additional clearance is added through the middle of the arm for header tubes
• Traditional Global West straps are used at bushing housing locations for strength
• Control arms are powder coated black

For more information, watch the video above.