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Old 03-13-2018, 09:52 PM   #9
GM man
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Join Date: Aug 2011
Location: Gainesville, Texas
Posts: 127
Re: 72 4x4 poor front braking

It sounds like there's something wrong with your proportioning valve or maybe your calipers or there is air in the lines. For your rears to lock up but not the front is weird, but for a cheap stab at it , try flushing your fluid with new brake fluid. It can make a difference too. Did you clean your caliper pistons up when replacing your pads?
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1972 GMC Jimmy 6.0/4L65
1972 Chevrolet long bed 1/2 ton
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