Yo Hoot
TDR MEMBER
Rick@DSM said:GM does not own Allison. The Allison in the GM rigs is designed by GM but built by Allison. Allison has their own transmission but also builds many different ones based on the individual factories request. It probably was a motorhome with the Cummins as that is just one of the incarnations for the Allison.
Allison Transmission is and always was a division of General Motors.