i put longer lines on mine when i did the re 4.5" lift, which turned out to be more like 5.5". i put 22" in the front and 24" in the back. brake lines are cake just make sure to bleed the system really well when your done. i ended up having to replace my rear wheel cylinders too because the bleed screws were seized and i broke them off. EVEN IF ALL YOU DO IS FRONT LINES YOU NEED TO BLEED THE REAR TOO, its just a safety thing.