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bhemingson · 02-14-2017, 01:29 PM

I moved my truck (1972 GMC 2500) yesterday into my new shop space. Truck had been stored a couple of months while I got things sorted out. The brake light came on and the front master cylinder reservoir was dry. I added fluid and got a little brake. I had about a 10 mile drive to the new shop so took back roads and stopped to top off once.

Questions: 1) I can't spot leaks anywhere, could the fluid be going into the booster? 2) I obviously need a master cylinder should I replace the booster too given the trucks age? 3) Who supplies good OEM replacements?I see a lot of "universal" boosters and I just want a GMC one. 4) I noticed a different fluid - water? - beaded up on the top of the brake fluid where would that come from?

02-14-2017, 01:29 PM	#1
bhemingson Registered User Join Date: Nov 2016 Location: Vancouver BC Posts: 162	Brake questions I moved my truck (1972 GMC 2500) yesterday into my new shop space. Truck had been stored a couple of months while I got things sorted out. The brake light came on and the front master cylinder reservoir was dry. I added fluid and got a little brake. I had about a 10 mile drive to the new shop so took back roads and stopped to top off once. Questions: 1) I can't spot leaks anywhere, could the fluid be going into the booster? 2) I obviously need a master cylinder should I replace the booster too given the trucks age? 3) Who supplies good OEM replacements?I see a lot of "universal" boosters and I just want a GMC one. 4) I noticed a different fluid - water? - beaded up on the top of the brake fluid where would that come from?