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Joined: Jun 2008
Posts: 37
R
Apprentice
Apprentice
R Offline
Joined: Jun 2008
Posts: 37
my 1966 GM c50

Looks like its a single resevouir, pretty small cap with a single bolt holding it down.

Is this also a single piston setup? If so do I have any options on a master cylinder replacement with dual piston and would there be an option with vacuum assist?

Thanks




Joined: Nov 2005
Posts: 6,100
3
3B Offline
'Bolter
'Bolter
3 Offline
Joined: Nov 2005
Posts: 6,100
Hy Rambos Ride, yes that should be a single system master, [rectangular cap], as to the booster, that is usually mounted after the master cylinder on that vintage of truck. They're called remote boosters, Hydrovac is one name for them. I personally would not bother to install a dual master cylinder, a properly setup single system will work [and have] for many years, hope that helps.

Joined: Jun 2008
Posts: 37
R
Apprentice
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Joined: Jun 2008
Posts: 37
Originally Posted by 3B
Hy Rambos Ride, yes that should be a single system master, [rectangular cap], as to the booster, that is usually mounted after the master cylinder on that vintage of truck. They're called remote boosters, Hydrovac is one name for them. I personally would not bother to install a dual master cylinder, a properly setup single system will work [and have] for many years, hope that helps.

Thanks - are the master cylinders available rebuilt or at least a kit? Too late to call NAPA tonight!

Joined: Nov 2005
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'Bolter
'Bolter
3 Offline
Joined: Nov 2005
Posts: 6,100
Hy Rambos Ride, the Napa part number for that master cylinder is UP34403 $77.49, that is the cheapest master cylinder I have seen in a long time, hope that helps.


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