When I was going through the buggy and doing bearing maintenance (back on 5/27/2020), I found something that didn't look right. Even though I had to use some heat to make the job of loosening the set screws easier, the diff pinion gear started to work its way loose from the grip of the center/rear uni joint, and front diff coupler set screws. There is enough wiggle room for the bearings to start walking out of the gearboxes at least 2mm as seen in picture below. The bearings won't come out all the way out (I think), but enough to concern me.