When i look at the rear of my car, the left side is about an 1.5 in. lower than the right side.
What could be causing this.
Is the frame Twisted or is it just a spring or shock?

 

weak spring from all that torque twisting down on it over the years.

 

I've heard of bad shocks or struts causing one side to sit lower on the front or back. Are you running the stock shocks/struts right now? It could also be springs. Good excuse to start working on your suspension.

 

no its not stock suspension. When i bought it, it has eibach springs, and kyp gas-a just shocks on the back. Also its got u/l control arms and rear sway bar.

 

well the springs are what control the height.. so i would definately check that.. Maybe they're worn or i've heard of them spinning or may i should say twisting out of position causing the car to be lower....