Posted 12/19/2014 07:23 (#4250629 - in reply to #4250133) Subject: RE: 1972 C-50 rear axle?
Henderson, Minnesota
he shifter cable on the gearshift lever goes into a diverter valve that moves the vacuum flow from the high side to the low side . There are little rubber buttons in there that wear out and prevent the vacuum flow from shifting. Replace these rubbers and you will be back in business.