IH mega truck by FWD

Every home needs one of these. Not listed as an IH but has IH parts https://www.bigiron.com/Lots/FWDCorpora ... CabChassis

IHC sold the comfo-vision cab to many low production mfg. Same with engines, It is a FWD, and mfg by them, but you are correct with some IHC parts.
Cline,Sicard, Diamond T and many others are in the same club as FWD.