Master cylinder question

[Eman]

Originally Posted by Coleydog

Pulled the snap ring from bore, saw its 1" just like the factory cylinder on a 70 Duster. New aluminum two bolt like factory, has the groove for rod lock. Bought at Carlilse in a box of parts, mc adapter, coil overs, a-arms, heim joints, proportioning valve and 10 lb residual valve, many misc parts, all for $100, all new. I'm using Strange disc on front, drums on back.
Thanks for replys
Mike

Your call but I don't think you'll need a proportioning valve or a residual check valve, every car is different. I've got GM Metric calipers on the frt. and drum on the back with an aluminum Mopar MC 1 1/16 bore with no ck valve and I have an adjustable prop valve but it's wide open.
What works for me footbraking is the largest bore rear wheel cyls and secondary shoes in both positions for more friction surface area.