griffey57

Does anyone know if Karps in upland, ca a good place to have my treadle vac rebuilt for my 57 olds?

redoldsman

In my opinion it is the best. They rebuilt the one in my 54 several years ago and no problems. I know there are some other places that are good but Karp's is excellent.

griffey57

Great, because I toyed with the idea of converting to discs, but too involved to switch and besides I like my drum brakes they have always worked fine.

Greg Rogers

Ok, I'll bite, what is a treadle valve? Kinda like a kunutin valve?

VC455

Greg, it's a modulating valve used for air pressure or vacuum to enhance brake application. GM cars used it in the 1950s. Big rigs still use it.

Tedd Thompson

It's like a Left hand muffler belt box bearing adapter and they come from the factory with grief when old....Or maybe i'm thinking of something different? So confused these days..... Just lost...... Tedd

redoldsman

I have no idea what a kunutin valve is but a treadlevac is the power brake unit used by GM on cars in the 50's. It is a unit that includes the power booster and the master cylinder. Oldsmobile mounted them under the floorboard (at least on the earlier cars) while Chevrolet mounted them on the firewall.

Greg Rogers

OK, learn stuff all the time!!