Say Shortliner,
As most are used with either a non-powered or powereed chasie I would imagine the only
way to get the shel alone now would be to contact Athern.
Short liner not sure what ton box cab you want. But you can make a neat 105ton Box cab from 2 bachmann doodle bug shells. also you make it to what ever length you need! I made a N scale version of it! It rides on a modified Kato/Concor sw1500 chassis
