Treadle-Vac vs. Hydro-vac


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By Frank from Texas - 11 Years Ago
Can anyone give me some feedback regarding the two types of brake boosters?

I am new at this old car game and need help.

Thanks,

Frank from Texas
By Lou - 11 Years Ago
I'm not sure which is which but  one has the boster mointed behind the master cylinder on the firewall the other is mounted under the dash. 
By miker - 11 Years Ago
My only experience is removing a failed treadle vac on a 56 scub, after everyone told my buddy not to bother rebuilding it. There is some info on the web, most of which indicates both these units were problematic at best. May I ask the application?
By Lou - 11 Years Ago
I've seen both used on Ford, Studebakers, Packards, Lincolns late 50s early 60s.