Air shocks are the easiest way but can cause permanent damage to your upper shock mount panel so we don't usually recommend them. New leaf springs should do the trick if you want to do it properly. And we're gonna kick Barry in the knee for even mentioning shackles. That's almost as bad as saying the C-word on here. Or you could just do like T.L. said and lower the front. There are a lot of people paying good money to get their car lower instead of higher. Good luck whichever way you go.
For the right price, I can come sit on the front end. That'll give you a lot of height in the rear. Maybe too much.
rearch old leafs add a ply with new bushings that should help Just got done doing that with the 66 raised it 4 inches leaf springs were really wore out