Vehicle Ride Height

[JThomas]

My 1991 ZR-1 is currently 1/2 lower in the left rear corner than the right rear of the car. The car has 119,000 miles, but all suspension bushings, etc. seem to be in good shape.

Is there an adjustment in the suspension system that I could make, to raise the left rear corner of the car? Or should I consider replacing the spring? Is there any explanation as to why the car would be lower in the left rear corner as oppose to the other? (My thoughts would be either excessive weight on the left side of the car, or maybe because there is always a driver and not necessarily a passenger, leading to wear, or launches where load is displaced to the left rear?)

I'm the second owner of the car and it has been a project for a year now, but seeing the car "tilted" is really starting to bother me.

Suggestions?