It looks like you guys hit this one right on! To clarify the issue, I have a new oil pump, but item #42 in the schematic drives a second helical gear (Thanks jt20!) which in-turn rotates the input blade on the oil pump. I guess I'll try to scrounge up a used set if possible. I think alastair has a good idea in replacing the two shaft bushings. These are probably worn and caused the misalignment and gear wear. 90% of the problem is trying to describe the issue and get the right name for the parts...

Thanks!