Hi Bill. Thanks for responding.
There's more to it them him "guessing". He's a skilled mechanic that I trust. Problem is we live in a VERY rural area and although he is competent, he was doing the serpentine belt and pulley work for free.... so, getting into the engine was going to be a time/money/tools/commitment neither of us were ready for.
The purpose of the video was to hopefully elicit thoughts from those out there with specific Disco experience. I drove it from his shop back home (15 miles ..did between 35 and 60mph ) and it seemed to drive ok... didn't notice anything as to performance. Just the sounds that you hear in the video seemed to be a little more present when I got home. The hope was to be able to drive it to a more proper shop (2hrs) but I wasn't sure I could make it so didn't push my luck.