Did a search and talked to some people and still dont have any idea. I put 4" front lift springs that I had from my old K5 on my 89 Crew Cab. I used 1" zero rates and the 1/2" longer ORD shackles. Now I am about to lift the rear with a 4" shackle flip and stock 8 leaf springs, which I had to replace both of the main leafs that were broke. Should I put a zero rate on the back or not, to get the truck to sit level? I read that the 4" front springs would only give me 2.5" lift on a 1 ton. It sits as high in the front as a friends 1/2 ton with 6" springs and 36" tires, mine has 35". Any help would be appreciated.
