Posted by AAA on Monday, August 08, 2005 at 11:28AM :
MoparNorm -
The answer is yes, Allison auto trans were offered and used in the medium/heavy duty Dodge trucks line.
They were available behind big and small blocks, and I believe the use a SAE#3 flywheel housing.
I saw one at a GSA acution in a mid 70s D400.
AAA