I didn't have to have spacers or driveshafts- the kit came with new arms, fox shocks, springs, hydraulic bump stops, limiting straps, etc etc. I love this kit so far and don't think I could've done any better. Everything I got cost me $6500 but I did some sweet talking and the dealership really wanted to see a final product. This included the lift, wheels, tires, alignment, install, badass rear tire relocator etc.-This was 5 wheels and tires by the way. The tires were the Goodyear with Kevlar and they are awesome so far. I am planning to get some better close ups in a few days.