I am thinking of getting a pair Procomp 13211 lifted chevy leafs. I read all the posts I could dig up . I know some people had problems with keeping the axle straight with them. Did you guys find out if it was just a simple misalignment issue or something else?

I have an 04 4x4 with the superlift up front, and 4" blocks, chevy shackles out back. I want to remove the back blocks, and am willing to use either the stock or lift shackle, whichever levels it better. For those of you who have the 13211 leafs in the back how stiff is it? How does it compare to stock hitting bumps on the highway?

Procomp says the spring rate is progressive from 191-512 ft/lbs. Anyone ever seen any specs on stock springs or the skyjackers?

Thanks!!!

 

I'm interested in this answer too! I love the way my truck sits but am concerned about the safety of those Superlift blocks. I'll keep monitoring this thread and if I come up with an answer sooner, I'll post it here.

 

You could replace those blocks with the 6" Skyjacker springs and remove your stock blocks or opt for the 4" Skyjackers and keep the stock blocks, they do have a bumpstop mounted on them.

6" Leafs

4" Leafs

 

yeah, im curious too, my superlift said stack blocks and i really am against it, but i had no choice as i didnt have AALs or anything lying around. (typically i do for some reason).