Dude I jus finshed the allpro extreme(5" springs), its badass, it took alot to get it done, make sure u have somebody help u, i didnt(big mistake), but im runnin 37's w/ no problems. Dont ruin ur 'yota by puttin on a bodylift. I havent flexd it yet (havent built front dshaft or put the shocks on) but the springs are really soft.