I just read the description of your truck.You converted it to 12 volt with alternator.Why not use this switch as dads50 suggested.I have been using it with my 12 volt system for over 20 years.It has three speed settings.
Tim
1951 3100 Chevrolet 1951 Chevrolet Suburban Carryall Image "A house is built with boards and beams. A home is built with love and dreams." "Look deep before you leap !!!" / "Everything is Everything" "If I say a mouse can pull a house, hitch him up"
