what would be some signs / sounds of bravo I u-joint problems? i'm hearing a clanking / knocking sound in neutral and idle. also, engine / drive vibrates really bad at start up on trailer with drive down before launch. when storing for long periods at a time i always leave drive in full down position. always start on trailer with drive in full down position when launching. i suspect u-joint issues, but what are some other possibilities? thanks.

I would say you are on the right track

X2 pull and inspect.

ujoints or gimbal bearing, pull and inspect