When I installed the Rusty's coil lift I had 3.25" lift. The front dropped to 2" and at last check the back was still up there. I've read a lot of good info on this site and I expected this. I'm going to do the clevis lift this weekend if I get a chance. I was just wondering how much is okay? I think I've read 3/8". Why not 1/2" or whatever else you could squeeze out of it. I would assume that the 3/8" is safe with the amount of people that have done it.