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Old 05-11-2016, 01:23 PM   #1
davepl
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Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Rear brake bias

Under hard braking, the rear brakes of my '72 (from a brake perspective) Longhorn will lock up.

Does the combo valve on these trucks do ANY kind of magic, or is it a fixed bias all the time that sends X percent to the rear?

I wasn't sure if they have a slider valve that manages deceleration or something fancy I've never heard of, or if it's just "always send X to the back".
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1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
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