Well I have pretty much wore out my 31 inch tires. to the point where some belts tore apart leaving my tire with a wart in the tread. I am going to get some 33, 12.5 15 BFG all terain's. My truck sits on stock leaves now but with the bigger tires I am going to need a lift. I was looking at tuff country's 3in ez ride lift. I am going to buy four new springs due to the saggy rear. On tuff countrys web site they state that they recomens the ez ride springs for small block trucks. I was thinking that my 88 Jimmy is not a light weight. But if I get the heavy duty springs I dont want them to ride rough, but i dont want the softer springs to sag. The truck is my dailey driver, it sees more road action than off road. What do you think? Is that even the brand to go with? I could go with Rancho, Superlift, ect. You'r response would be help full. As I work through my little project I will have more questions. Thanks for your help. Brian Sav 88 GMC Jimmy, 350 small block.