I did ask this question in a reply to someone else's post, but I think it actually qualifies as a whole new thread.
Does anyone have three-point rear seat-belts in the back of their T25? If they do, what is the non-roller and non-buckle end bolted into? At first, I thought it just bolted into the rear wheelarch, but on trying to loosen it, the bolt doesn't come up. Looking up through the wheelarch, I saw a bolt end that I expected to be dissappearing inside to where I was unscrewing it from. But it seems to be painted black and hasn't moved, even though I was puffing and panting moving the bolt only 1" turns at a time

Any help should secure a beer or so