Cone or clutch??? How to identify?

I just pulled a 3.55 741 out of a Dodge truck. Interesting, I didn't realize that was so uncommon.

I haven't seen a bunch of them so maybe it was the luck of the draw for me. The only 741 case I saw in a truck was /6 powered. That truck was a strange combo with it's /6 power, granny 4 spd, and a 741 case 8-3/4 in a 1/2 ton truck.