I don't see any 2 rail trucks available by Lionel but they do offer 2 sets of 2 rail replacement wheels. One set is to convert a Lion scale car to 2 rail which is a 50 ton truck and the other one is to convert their 70 ton Lion scale car to 2 rail. You can see them in the Lionel 2018 catalog page #197 bottom of page. I was trying to convert a Lionel 86' high cube box car to 2 rail. Someone on here told me that I could get 2 rail wheels to fit those Lionel trucks from a manufacturer but I forget who the manufacturer is. LOL My grandmother used to tell me "It's hell getting old". I guess I'm now finding out how right she was.
Rick your Grandmom was right. I also feel like getting old is hell but the alternative is worse.