The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

markeb01 · 11-09-2010, 11:59 AM

Welcome to the forum. Not knowing the history of the truck, it sounds likely it may have sat for an extended period of time and corrosion played havoc with one or more of the wheel cylinders, and/or the master cylinder. Once it was put back in service, the motion of the cylinders over the rough internal surfaces caused them to start leaking and lose fluid. It probably just needs a standard brake overhaul, which would include rebuilding or replacing the cylinders, shoes, and turning the drums. While it's apart make sure to repack the front wheel bearings and replace the front inner grease seals.

11-09-2010, 11:59 AM	#2
markeb01 Senior Enthusiast Join Date: Feb 2007 Location: Spokane Valley, WA Posts: 8,356	Re: brake help Welcome to the forum. Not knowing the history of the truck, it sounds likely it may have sat for an extended period of time and corrosion played havoc with one or more of the wheel cylinders, and/or the master cylinder. Once it was put back in service, the motion of the cylinders over the rough internal surfaces caused them to start leaking and lose fluid. It probably just needs a standard brake overhaul, which would include rebuilding or replacing the cylinders, shoes, and turning the drums. While it's apart make sure to repack the front wheel bearings and replace the front inner grease seals.