of course since you used the "N" word (never) you know there is a deluge of posts coming swearing they had one, talked to someone who had one, knew someone who had one... (meaning Dana in a non 440/426 car). I don't know if you could get it or not, but I have come to learn that when it comes to Mopar, never say never... I think dealer installed stuff plays a huge role in all of the controversy and misinformation. I remember as a young aspiring Mopar fan in the early 1970's that our local Mopar dealer was known for ordering about anything and if he couldn't order it, they would make it through the parts department. Knew a guy who ordered a 70 440+6 Roadrunner; when the car came in it had a 4BBL but the dealership ordered and installed all of the 6 pack stuff. Of course no one back then cared about codes, VINs, etc.