The control shafts on the 55-59 Chevy trucks does not line up with the 54-59 GMC, a JEEP Station wagon radio is the same as a 54-59 GMC,only has different model number,no"GMC" logo on the dial,differnt mounting accsories and drum speaker ,I know that 56 Jeep is originally 6 volt 57-58 maybe 12 volt,but you thought a GMC radio is rare, try to find original Jeep radio,they are out there!
