:rofl: Well, I was thinking along those lines too but I imagine they got it cleaned up pretty well from the sound of their efforts. But those are also very good suggestions on the exhaust head pipe, flex plate, and the driveshaft length. Get the car up with full weight on the suspension and confirm you’ve got around an inch or so between the u joint yoke and transmission rear seal. Setting up a mechanical oil pressure gauge would be a good idea too. I’ve got the same situation going on right now with main bearing knock in a dodge 239 v6. It’s usually in a low rpm situation with no throttle in neutral after it’s hot and the oil pressure bottoms out. It’s way past rebuilding but it’s turned into an experiment of how long one can go before it ends itself at this point.
