So i bought a 2007 with 117k on it for like $15K from a private owner. the dealership that i got it checked out at informed me it was eligible for a rear leaf spring/ frame recall. im using this opportunity for free labor to put a 1.5-2 inch lift on it. so far I've been told everything from get the 4600'ers to 5100's are better. the last owner put some old model tundra 4600's with associated coilovers and they're messing with the tire wear in the front. i want the same height but for the front and back right now the front looks like it has a lift with the back still riding low (stock). where can i buy 5100's with coilovers for less than $600? can you buy the coilovers separate ? and would putting in 4600's just drop the front down to stock level again?