lifted 97 f350 brake problem - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 02-01-2014, 07:28 AM Thread Starter Rookie
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lifted 97 f350 brake problem

My recently acquired 4x4 rear brakes lock up immediately when pedal applied ,you have to take your toe to bring the pedal to top.I'll also say this monster has about a 6 inch lift (really don't care for but seller advised she was stock height) ok, we wont go there. The rear proportioning valve has been removed, Is that the issue? Was thinking that was left to right? Or is this a booster/master cylinder issue ?This is my daily driver at this point. Thanks for the tip on the ebp valve, that was "spot on" ..

p./s. If anyone is interested in this lift kit and leave around Chattanooga lets get together... be warned they will jar your teeth out!
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post #2 of 2 Old 02-01-2014, 08:47 AM
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You need to install the proportioning valve. It usually makes the brakes 60% front brakes 40% rear. Right now your 50/50. You can go back to stock or get an aftermarket adjustable one.

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01 f-250, Standard
Rev tech 4" lift,35" Mickey Thompsons MTZ
KC diy 66 stage 2, Full force 160/100 and custom tunes from PHP
Banks inner cooler and full 4" exhaust, Diy S&B intake
Diy quad feed, Hydra, Isspro boost, pyro, and fuel pressure
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