My ’70 Maverick race car has a rear coil over conversion. When I put it on the lift, the left rear spring is loose, about 11 inches long and right one is tight about 9-1/2 inches long. They appear to be QA1 but I can’t locate a listing for the numbers on them. The shocks are nonadjustable.
The front suspension is a straight axle using a pair of leaf springs. Total weight was 1392 pounds without an engine, transmission, and accessories such as battery, gas tank, headers, etc. I’m estimating 2300-2500 pounds total when the car is race ready.
I’ve never set up a coil over rear suspension. I looked at several YouTube videos, but none of the videos address why one spring would be completely loose and the other tight. I am guessing that the preload is correct on the right one add the left needs to be tightened. On leaf spring setups I use a extra leafs on the right and when I setup Air Lift Air bags, I put a higher pressure in the right air bag.
Would setting length of the left one at about ¼ inch longer that the right be a good place to start?
