I have a 98 Sub with grey leather. I have the 60/40 split bench in the 2nd row and would like to replace with captains chairs? Has anyone done the swap and know where matching seats could be found?

try a bone yard or custom seat shop, if you are going to do this yourself and can weld you should be golden but if not i would go and order captains chairs from an aftermarket supplier, and even then there will be a couple of studs needed to be welded in place