Looking to lift up my 1970 duster rear end. I have a few extra pairs of leafs laying around off of other chrysler cars don't know if I should try to add a few more leafs, or go with shackles or air shocks.
Adding more leafs will make them stiffer, but will not raise the car. The proper method would be to have the springs re-arched by a spring shop. Check local truck spring shops. Shackles and air shocks are not the best way to do it.
Had the springs rearched in the 62 300 my kid had.They added a leaf and 1 inch more arch.It sat very nice.Drove it for at least 12 years and they were better than any new springs you can buy.If yours are old 1 inch more will add probally 2 inches lift as they are probally sagging.Rocky