I ordered the 5.5 lift from 4wd.com and recived a call asking if I wanted the 3.5 leaf springs insted of the 4.5 it comes with., and was told if I went with 4.5 leafs it would sit an inch higher in the rear. Should I stick with the 4.5. Or go with the 3.5 leafs? It also comes with shackles that add 1.25"

 

I don't see any reason to go with 3.5 leafs. So what what if a new lift sits a tad higher in the rear. It will settle and it won't hurt a thing before it settles. You might want to get a hold of RE for clarification

 

You want shorter leafs and the shackle.
Much better setup

 

I have the RE 5.5 short arm with 4.5 inch leafs and 1 inch shackles and it sits perfect. 3.5 leafs would look retarted in my opinion. Especially once they settle in and losen up a bit.