They had a different style yoke for the trans, so we had to use that one for our measurement. It is stronger than the stock one and they used non greaseable u-joints as they are stronger.
I like how it's all the same diameter all the way down, no neck downs...
My brother used to know the guy that works there now. He built the engine for the Challenger that we had back then, and my older son now owns it. I never thought that I'd see him again... He does good work...