58 Pan Oil pump shaft keys

[mogman]

The parts book shows two different part #s for the three keys on the oil pump shaft, I ordered both numbers and they came in the the same bag and I have several others also.
I can not see a nickels difference between them??
Thanks
Craig

[fourthgear]

Off the top of my head ( which doesn't always work ) I think there's a shorter one in there for the supply side gears . I've got mine apart for the 65 , I will check it out . It just keeps coming to mind one is diff. , but I could be having a brain infucksion.

[rrhawg]

The one in the middle is shorter than the other two.

[mogman]

Well evidently I only have the short ones, none seem to fit (fill) the key way correctly