Chuck Sartor posted:That Missouri Pacific GP-20 I see in the foreground in the first picture will fit the SD28 chassis. The shell may need the end mounting screw hole drilled, but that's easy.
Good catch by Chuck. That's a Lionel No. 28500 shell from 1999, and will fit any traditional SD/GP chassis. It didn't have an end mounting screw, so drilling the hole will be necessary, but as Chuck says, that's simple.