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I provided a link to the one I have. Long story short, bought this from a friend. and it is missing the oil pump drive. So I called jegs and they said they do not sell this part individually. Can anyone help? Can I modify my stock unit?

 

The stock one has the pump drive and crank gear all in one piece. You would have to machine the drive off and make sure it's precisely the same length so that it doesn't cause issues with the dampener. Might to be cheaper just to buy a new timing set.

 

I debated on letting the local machine shop machine the piece down to size. shouldn't be hard once I get measurements but at this point I'm thinking of seeing if I can sell it or trade towards a new ls2 timing set.