Hi there, I have a 2005 FX4 level II. I am doing a engine swap, I bought a engine from Fraser engines with all updated parts. My question is which oil pump drive should I use Part number F77Z-6A739-AA or 5L2Z-6A739-AA . I think both will work but they do look a little different. The truck is still running so I cant look at the one in it. The motor in truck it is the same one as when I bought the truck in 2005 4.0 sohc. the engine still runs fine with close to 500.000 KMs

Thanks
Robert