I cut the last section of my bumps off which I think was prolly an inch and a half for a bit smoother ride and it worked well but it gave me a little body roll when cornering which I don't like so I will be putting new ones on and live with the extra rough ride,I got rancho 5000 shocks and stock rear springs and b-4 cutting the bumps they were about a half inch from the axle and so I had almost no body roll.