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brake booster [message #248913] Wed, 30 April 2014 19:12 Go to next message
BRDRVR is currently offline  BRDRVR   United States
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Registered: July 2013
Location: Clearwater, FL-Gerlach,NV
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Senior Member
I remember seeing on the forum that the brake booster is not common to other GM vehicles due to the push rods are different length? Ive got a coach that has a vac leak in the booster and need something to replace it with to get me back. Is there anything form Napa or autozone/oreilys that will work or modify it to work?
Thanx. David

David Gourdine http//www.blackrockdesertrvrental.com booking@blackrockdesertrvrental.com 727-657-1955

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Re: brake booster [message #248918 is a reply to message #248913] Wed, 30 April 2014 21:10 Go to previous messageGo to next message
lqqkatjon is currently offline  lqqkatjon   United States
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Registered: October 2010
Location: St. Cloud, MN
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Senior Member
Dave-

you pose a good question, most people post about upgrading the brakes, either the booster or the master cylinder. and needing to make sure the correct rod is in place. not just replacing stock booster. I know I upgraded to a sensitized booster from Jim Bounds, and it came with a rod.

as far as a non-upgraded booster, I am not sure what to tell you.

However I would think someone might have a used one you could get after they upgraded theirs. I have my used one on a shelf you could have, but it would take probably over a week to ship it to you.

I did a couple searches on the part number in the gmcmi exchange book, and could not come up with a part.

Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/

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Re: brake booster [message #248922 is a reply to message #248918] Wed, 30 April 2014 22:26 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Location: Hebron, Indiana
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It is my understanding that the brake booster used on the GMC MH is unique to the GMC. Get Jim K or Jim B to overnight you one if you are in a rush.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

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Re: brake booster [message #248960 is a reply to message #248913] Thu, 01 May 2014 18:51 Go to previous messageGo to next message
burtco99 is currently offline  burtco99   United States
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Registered: September 2007
Location: Montreal
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Dave,
How badly is it leaking, and are you able to determine from where?

A bad seal behind the Master cylinder might be a potential cause, especially if the pushrod is rusty, or the seal is hard. You might try cleaning and lubricating the seal and push rod with silicone grease.

Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress

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Re: brake booster [message #248980 is a reply to message #248960] Fri, 02 May 2014 07:18 Go to previous message
petemosss is currently offline  petemosss   United States
Messages: 221
Registered: August 2008
Location: Jacksonville, Florida
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Senior Member
Dave, I have an extra that was given to me by someone replacing it with a sensitized booster. I'm at the intersection of 95 and I10.

Pete 74 Canyon Lands 26' "Emery"

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