cableguy8

changing out harmonic balancer and the part i ordered and every part store says that the part i ordered is the correct part. bu the harmonic i took off is a bit different. the shafts that go on to the crank are different length. the one that was on the truck is smaller. i just got the truck so i dont know history.. from what i can tell theres not much difference one the belts that go with each setup. one is a inch i think or so longer then other. i dont know if this matters but the ac pump is replaced with just a pulley in its place. not sure if that changes ur belt size. not sure what to do if this longer one is supposed to be on there or do i have to replace with smaller shaft one.