I went into a local Chrysler dealership and ordered the leaf springs out of the MP book. I noticed the two different part numbers for left and right and asked the counter fellow if that meant one had more lift or if one was different from the other. The fellow didn't know so he called the wharehouse and the response back was "not sure". There are no returns on the MP parts so I gambled that there wouldn't be a difference between the two even though in the back of my mind I was thinking there had to be a difference or why would they create another part number? So I bought a left and right one and a few days later they came in. We lined them up on the counter and sure enough, the right spring had the leaves positioned differently and which would result in a higher ride on that side. Since I couldn't return the right one, I did the install to see how noticeable it would be and it was noticeable. So I went back and ordered another left spring (from the same fellow who entered my previous order), installed it on the right side and then finished rear brakes and driveshaft work.
I've got the unused right spring sitting in my garage so if you want a higher lift on both sides of your car, just buy one right spring and I'll gladly sell you the boat anchor in my garage at a great price.