1970-73 Camaro Rear Suspension Installation
1. Bolt the bare crossmember in place using the original leaf spring holes.
Using a stock location point, measure the crossmember side to side to be sure it is square. After determining it is square, completely weld into place.
2. The face of the front of the coil over bracket to the rear face of the front crossmember is 25 ½”.
Using a square jig position the rear crossmember 25 ½” back from the front crossmember. Check to be sure it is level and square. The measurement of 25 ½” is taken face to face.
3. We assemble the rear bars and brackets and clamp a square jig to each bracket 27″ apart. This keeps the brackets level and square. When the housing is centered in the frame the brackets are tacked in place. Keep the lower bars level and place a level on the coil over mounting.
NOTE: WHEN WELDING THE BRACKETS ON TO THE HOUSING CARE MUST ME TAKEN!!! ONLY WELD APPROX ¼” AT A TIME AND LET IT COOL BEFORE CONTINUING WELDING. IT IS VERY EAST TO WARP A HOUSING WHEN WELDING ON THE BRACKETS.
4. After the 4-bar brackets are in place bolt the panhard bar to the brackets and place the rear end bracket in the center of the housing. Tack weld the bracket keeping the brackets square and level. A bar or strap with holes on 12″ centers will keep the rear housing at ride height. Keep the bar or strap in the housing bracket center hole.
5. When using a rear sway bar the bracket hole is even with the lower housing hole.
6. When mini tubbing the 1970 Camaro we trimmed the inner wheel wells out and then trimmed the floor panel into the original rails. We then re installed the inner wheel well which gave us several more inches of clearance. This gave us approximately 15″ from the fender lip to the inner panel. The trunk DOES NOT need to be cut for the rear crossmember clearance in the 1970-1973 Camaro.
7. We then added a steel strip and welded and seam sealed it into place.