it's true feel is how YOU like it. Most of the guys go with a little stiffer spring to eliminate some of that rock and roll in our old Chevy's. To that effect most replacement manufacturers go with the station wagon springs as stiffer suspensions are more popular. The next most popular are lowering springs because the car looks cooler and lower cars have a better center of gravity. In the original set up something had to be given up to get that great GM feeling and it was control. what is hard is to find an online vendor that gives you the spring specs like height and and compression + relax rates. even wire thickness is not normally mentioned. i bought my 1960 springs from Performance on line. another knowledgeable vendor is Global West. i'm not sure but i don't think variable rate springs are normally places in the rear. if you don't need a stock look try coil over springs or variable shocks.I have to replace my 50 yo rear springs on my 69 sedan. It has a 327. I’d like a comfortable ride at the stock height or even a little higher. Does anyone know where I can find variable rate rear springs?