Brake Boosters, what's the difference? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BigBlock67 · 06-27-2002, 12:23 PM

Put power brakes on my 67 C20 with a unit from the junkyard. 30 years later,it has gone bad and the auto parts store needs to know if it is from a 1/2 ton or a 3/4 ton.Also, 67-70 are different than 71-72. Does anyone know if these are obvious size differences or are they different inside?

*Fast68Chevy* · 06-27-2002, 01:33 PM

lotsa of differences, for one there were two manufacturers of boosters, Bendix and Moraine, and yeah C20 C30 ones were larger most the time and then drum/drum ones wewre little different from disc/drum ones too

Rod · 06-27-2002, 02:03 PM

Post a pic if you have it.

06-27-2002, 12:23 PM	#1
BigBlock67 Registered User Join Date: Jan 2001 Location: McKeesport, PA Posts: 123	Brake Boosters, what's the difference? Put power brakes on my 67 C20 with a unit from the junkyard. 30 years later,it has gone bad and the auto parts store needs to know if it is from a 1/2 ton or a 3/4 ton.Also, 67-70 are different than 71-72. Does anyone know if these are obvious size differences or are they different inside?

06-27-2002, 02:03 PM	#3
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	Post a pic if you have it. __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

06-27-2002, 01:33 PM	#2
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	lotsa of differences, for one there were two manufacturers of boosters, Bendix and Moraine, and yeah C20 C30 ones were larger most the time and then drum/drum ones wewre little different from disc/drum ones too



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