@Ted S posted:Bob, I'm with ^^Holmes. I'm not a huge fan of WD-40 around trains, but it's a penetrant. Before I would take a hammer to anything, I would spray some WD in there, and let it sit. I also don't remember an epidemic of MTH diesels being under-gauged, so if the wheels were pressed on too tight, you were lucky enough to draw a lemon!
Then I'm makin' the lemonade........
As I mentioned, I bought this from Trainz in 2019 (a 1997 issue) and I don't think it was ever out of the box until now, so the trucks have had a long time to get comfy and not move. I did use WD-40 on the first one before going further. Helped a little but the added info of under gauged trucks makes sense as to why I'm having issues.
Thanks