Well I have 2 of the v6 t-cases, one off a 5 speed, and one off a auto. I am running a the 2.4L with tranny stated above. I was going to order a 4.7 gear set, but I was made a sweet deal on the mc10 to have a dual set up and I can still regear my 4cyl gear box later..
I would assume that the v6 case is a 23 spline?? I know that my 4cyl stuff is all 21.