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Home » Public Forums » GMCnet » Brake booster and master cylinder combo (What is the motorhome difference, if any?)
Brake booster and master cylinder combo [message #325787] Sun, 05 November 2017 18:20 Go to previous message
Tilerpep is currently offline  Tilerpep   United States
Messages: 404
Registered: June 2013
Location: Raleigh, NC
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Anyone know for sure that the following should not work, or cautionary tales? They are not listed in our parts exchange.

I found this booster and master cylinder on a 2014 facebook post
https://www.napaonline.com/en/p/NBB501002

I also found it at rockauto a little cheaper w same part number.
The rockauto lists it for the mid 70's toronado

seems like it will solve pushrod length and seal issues because it comes with mc attached.

For just the booster, the same thread in 2014 a guy lists a cardone part #54-71018 as compatible if you alter the through hole for the clevis pin. It shows available by mail order from advance and autozone.

My 75 has a metric booster from Leigh Harrison that is now audibly leaking vacuum the last two trips and a home made spacer to get the pushrod length right, and my 78 has an original booster with a newly installed master cylinder (that was sitting for years in the coach uninstalled when I bought it) that is leaking fluid on the booster face, so will need to be replaced. Seems that the combo solves a lot of issues, it just doesn't give you the "sensitized" thing.


1975 Glenbrook, 1978 Royale rear bath Raleigh, NC
 
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