55.2-59 Frame mounted Dual chamber Master cylinder for Drum/Drum..who's done it? Who likes it

[daveshilling]

Originally Posted by G&R's57GMC

Dave on a chassis mount power booster/master cylinder do yourself a favor and run the vacuum line from the engine to a high point on the firewall and install a vapor separator from a 70s 80s Chevy caprice or Malibu then run the line down to the booster .

Phil my friend with a Cameo didn’t and had to replace the booster later because the fuel vapor wreaked the rubber in the booster.

Definitely something to look into!

[G&R's57GMC]

The part is called power brake filter
Dorman 80195

[nvrdone]

could this filter be mounted at the intake manifold instead of on the fire wall and work properly?

[G&R's57GMC]

The p.b. Filter should be mounted vertically with the straight inlet at the bottom and be higher then the top of the carb . The higher the better.

Good location would be just below the firewall seam or if you’re going for a shaved firewall mount it inside the firewall. Just be sure that the vacuum line has a down hill slope to the manifold. The line going to the p.b. Booster can be a hard line with short vacuum hose to the booster.

Be sure to use power brake vacuum hose , it’s thicker and fuel vapor safe and won’t collapse.

[nvrdone]

ok, thanks for the info. i will add it to my project list

[daveshilling]

Originally Posted by G&R's57GMC

The part is called power brake filter
Dorman 80195

I found the GM version on ebay for about the same price:

GM 17056236