The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - How hard is it to rebuild a master cylinder?

Andy4639 · 10-25-2012, 10:53 PM

There is got to be a leak some where! If your adding fluid every month are so. Have you took the drums off and looked inside at the wheel cylinders. They may be leaking but the heat of the brakes is causing it to appear as they aren't. Brake fluid will evaperate pretty quick when hot.
Cheap insurance is to replace them if they haven't been replaced before though.
MacGyver72, un like his your's is loosing fluid so it's got to be a leak somewhere in the system.

10-25-2012, 10:53 PM	#7
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: How hard is it to rebuild a master cylinder? There is got to be a leak some where! If your adding fluid every month are so. Have you took the drums off and looked inside at the wheel cylinders. They may be leaking but the heat of the brakes is causing it to appear as they aren't. Brake fluid will evaperate pretty quick when hot. Cheap insurance is to replace them if they haven't been replaced before though. MacGyver72, un like his your's is loosing fluid so it's got to be a leak somewhere in the system. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.