Catt: Probably glued in. I bought some Walthers log and GSC flatcars when both were new, and every one of the trucks was glued. The GSC cars were a pain to drill out. The log cars were easy, as I removed the bunks (the ones that hadn't fallen off in shipping) to paint the cars. On those I could drill all the way through, as the hole went through, and the bunk covers it when installed. Most of the trucks on the GSC cars broke when I tried to pull them off. Not such a bad thing, though, as all of the wheels were out of gauge, and plastic wheels can't be fixed. They all got new MT trucks.