The CVs are lighter. I am not sure by how much. I'd have to dig through my notes. It was something like 10 pounds, but frankly I don't remember right now.
I don't remember the grease we were running...hmmmm. It was some special
synthetic grease. It was quite messy.
I'll keep an eye on the boots. On a test vehicle we have run the inboard side of the CV boot unclamped for a long, long time without any problems.
David