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Re: 81-87 rear brake circuit have residual check valve stock?
Quote:
Originally Posted by Hart_Rod
Slightly off topic, but has anyone ever heard of anti-locking rear brakes on an 87? Any information on them? Just noticed it's on my window sticker.
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I have an 87 3/4 ton. It came from the factory with a load-control valve above the rear axle. Supposedly under very heavy braking conditions, the rear of the truck would lift up, and would be prone to locking the rear brakes. This valve would close off the rear brake line, and reduce the chance of the rear locking up in these conditions. This valve is commonly removed.
I don't know if the 1/2 tons had the same valve. If so, GM may have called it anti-lock brakes, as a marketing gimmick.
Keith Seymore would know what's meant by "anti-lock brakes", I'm sure.
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1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!
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