Brake adjustment
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4wd High
Joined: Dec 2022
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Brake adjustment
So I have a 1987 f250 That I put super duty axles under and I have experienced more breaking power in the back tires i cant spin the back tires while trying to do a burnout I know that could also be a power in the truck issue but I was wondering if there was any adjustments I could make in the frame rail or on the brake line with a adjustable valve. Any help would be greatly appreciated.
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4wd High
Joined: Dec 2022
Posts: 9
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So I put superduty axles into my truck and I feel like it has more breaking pressure in the back and I'm not sure if their is a factory valve I can adjust to even put the pressure
i ain't rite
Joined: Mar 2005
Posts: 65,566
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From: Marlboro Mental Hospital.
no valve in the truck now to adjust rear brake pressure. what you need is an add on adjustable proportioning valve to put at the master cylinder. this will let you decrease pressure to the rear brakes to equalize them.
FTE Legend
Joined: Nov 2015
Posts: 30,940
Likes: 4,125
From: Angier, NC
Are you still using the disc / drum master of did you swap in the SD disc / disc master?
If still running the old master there is a valve in it to the drum side that held a little psi to over come the drum brake springs.
This valve needs to be removed. Pull the flare seat out of the master and behind it should find a spring and a valve / seat.
Remove the spring and valve / seat and put the flare seat back in you should be all set.
Just note disc take more fluid and the old master dose not have a lot now for the rear disc.
Dave ----
If still running the old master there is a valve in it to the drum side that held a little psi to over come the drum brake springs.
This valve needs to be removed. Pull the flare seat out of the master and behind it should find a spring and a valve / seat.
Remove the spring and valve / seat and put the flare seat back in you should be all set.
Just note disc take more fluid and the old master dose not have a lot now for the rear disc.
Dave ----
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chriskot
1967 - 1972 F-100 & Larger F-Series Trucks
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Apr 1, 2009 08:19 AM
