[Chevybowtie]

I got a 6 inch tuff country ez-ride on my 68 k10, and all i did was did the front how your suppose to do it. In the rear i have 5 inch blocks and put add a leafs on the stock springs, worked just fine. The difference is that the 67-68 rear leafs were 56" and 69-72 are 54", or thats what i've heard. Hope this helps.