You can, but that wasn't the original question. The links I put up, one mentions a place that does that...cost him $139 for one shoulder belt.
All things are possible with Jaguars once you understand their appetite for one hundred dollar bills.
One of the discussions I read on faded belts is, maybe they are weaker, but at 1% who cares.
Probably the sheet metal they bold to is thinner, too, and will fail long before the belt does.