I have a 90 xj with a 3 inch lift and my brakes suck. i dont have much peddle pressure and i dont know why. i have changed the fluid and i bleed them and i still have nothing. do you guys know what i can do to help this out. i dont have abs and i dont want it. can i upgrade the master cylinder and brake lines? if so what should i use and how long of lines? Any thoughts would be greatly appreciated. Thanks in advance. q