Brake Booster Problem on 58 Caddy Hearse

[gtoblade]

I have a 58 Cadillac Hearse S&S that has been sitting for about 5 years and got the old girl running again, but the brakes are locked up. Not unusual i know but they free up if i unhook the vacuum from the brake booster and it will roll. Brake cylinders were rebuilt by previous owner and should be fine. Pedal is real hard when vacuum is hooked up. Something is wrong in the booster i guess but what? If so, i am told that the commercial cars have a heavier duty brake booster.........? Where do you get a rebuild kit for them or who rebuilds them (thats trustworthy)???
Thanks!!!
Jeff

[northgahearse]

try here i have had good luck with them on boosters
and that sounds like what the problem is ....

http://www.bscparts.com/

[gtoblade]

Thanks, i will contact them and see. Never seen one do this before.