I have installed mopar heavy duty leaf springs that are suppossed to be like the originals but I have noticed it has lifted the rear of the car. I guess thats ok, has anyone else here found the same thing? My concern is the Pansengers side is 1/2" higher than the drivers side at the back of the car. I went around and measured the front and have almost 1" difference from one side to the other. The drivers side again is lower.  The car was out before I changed the leaf springs but it made it more noticiable because I had a bad leafspring on the high side. Will the torsion bars correct this? I am told to tighten the nut of the torsion bar on the low side and this will raise the low side will that also help line up the back end? Do torsion bars wear out? Any help would be good, Jon.  

It sounds like you either have super stock springs, or your drivers side lower bushing is gone/wasted.
Have a look at the ride height bolts at the bottom of your control arms to see if they are evenly set.