NEED Help! Front disc brakes won't release! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1972RedNeck · 04-10-2011, 10:38 PM

My 1972 GMC 3/4 ton 4X4 brakes won't release. The original brake booster went bad so I installed a NAPA brake booster. They worked fine before but now the brakes won't release all the way. They just drag and over heat the brakes (600 degrees F in 5 minutes on the rotors

). The rod coming out of the booster is pressed hard against the fire wall and the pedal has about a 1/2 inch of free play. Is there any way to adjust it? Is it a faulty booster? This is a daily driver so I need help fast.

Any help is greatly appreciated.

04-10-2011, 10:38 PM	#1
1972RedNeck Registered User Join Date: Jan 2011 Location: Townsend MT Posts: 1,725	NEED Help! Front disc brakes won't release! My 1972 GMC 3/4 ton 4X4 brakes won't release. The original brake booster went bad so I installed a NAPA brake booster. They worked fine before but now the brakes won't release all the way. They just drag and over heat the brakes (600 degrees F in 5 minutes on the rotors). The rod coming out of the booster is pressed hard against the fire wall and the pedal has about a 1/2 inch of free play. Is there any way to adjust it? Is it a faulty booster? This is a daily driver so I need help fast. Any help is greatly appreciated.

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