98CherokeeSport
NAXJA Forum User
- Location
- Bonney Lake, WA
so i have read and read and read on and Pirate4x4 about brakes. i just swapped in full width dana 44 and dana 60 into my xj. the front is running the dual piston 3/4 ton brakes and the rear has the 3/4 ton k20 disc brake setup. my xj is a 1998 so it has the dual diaphram booster. i read that the 1 ton dodge 3500 MC would be what i need to bolt right up to the booster. so i bought that and made a little 5/8ths spacer like i read about, bench bled it and then installed it and bled the brakes. when the engine was off i got really good pedal pressure. but as soon as i started it up i lost almost all of the pressure. i took it for a drive around the neighborhood and i could stop but i had to put it almost al the way to the floor and the pedal was really soft. o and i have the stock prop valve. does anyone have an idea of what my issue could be or some solutions? thanks!