GMC DUMP Wouldn't try to use the car booster,is best to put it back the way it came new,GM had it right. You know I oncee had a 65 big truck dumped in my lap that had intermittent brakes,I couldn't fix it!! Shortly left that company,a hot shot mechanic came in changed that real stiff vacuum hose from the intake to the booster--fixed it--would stop on a dime give back a nickel in change. I have never forgotten that--that hot shot became a hero,is now horizontal in the ground!!
