DIRECT BOLT UP. THIS MASTER CYLINDER REPLACES THE 1975 MASTER CYLINDER AND FITS AND WORKS PERFECTLY. 1976-1980 ALL LOOKED AND WERE BUILT LIKE THIS ONE. IF IT WAS LEAKING BRAKE FLUID OUT OF THE SWITCH IT IS NOT THE SWITCH THAT WAS BAD BUT THE SEALS IN THE LOWER CHAMBER OF THE MASTE CYLINDER HAD FAILED.
