What Else do I Need

[MerkL]

I've decided against the RE 4.5" lift kit, but I'm just going to buy the springs. I have a 3.5" Superlift on now. The reason I decided against it, is I don't need an extra set of extended brake lines, new set of shocks, but my question is, will I need anything besides the springs, or will I be set.

 

[jps4jeep]

No, in the 4.5 RE kit, the springs are only 4" lift springs so you will most likely not.
If you net any gain when the springs settle it will only be about 1/2.

The lift difference between the RE 4" and 4.5" HD kit is the shackles, and this is where they get the extra inch of lift. If you look at the part numbers for the springs, they are identical

 

[MerkL]

Yeah, but if I get the cheaper 4" springs, would I need anything else besides the springs themselves. I have extended brake lines, and I'm getting the SYE and CV driveshaft. Thanks for the info.