The Filling Station sells 600w gear oil for 1911 - 1936 transmissions. It contains no additives that might harm bronze parts. $13/qt

part # VT-40

Their website says that a 1 1/2 ton 4 spd takes 4 quarts

Link

Last edited by klhansen; 06/22/2025 8:21 PM. Reason: Fixed link

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)