It also depends on the type of booster. I thought that the Midland Hydrovac types were used in the 60s but Im not positive. These can blow a seal inside and basically all the fluid gets dumped into the vaccuum chamber, hence no fluid getting to the wheel cylinders.

Just a thought.

Jeff


My 1953 Chevrolet
1947.1 Gallery
1972 C-10 1/2 Ton & 1972 C-30 1 Ton