I am doing some research to determine what the original negative battery cable should be on my 1972 Demon 340 (SPD 4/72).The parts book shows #2983778.But after going some searches here,I see some guys have a #2983826 on their original or documented disassembled cars.Is one a superseded number to the other? I'd like to know what mine should be(missing from car),if possible,before I start searching for a real/NOS one.Thanks for any help