What's the oil cooler look like from an '01 ?
I'm not sure if I would JB weld the part your talking about. I've seen it used to plug a small hole in an engine case ( and hold) but I've seen it break loose in other applications too.
I've got the stock one from a '95 sitting on the shelf. If DesmoBob doesn't have his left I can hook you up cheap with mine...
Post up a pic and it might help someone with a bit more experience tell you if it's worth the effort. If you can't post a pic, send it to me and i'll post it...