[sweetk30]

32 spline th400/4l80-e stuff is male female only .

Coupler sleeve is only 27 spline or 10 spline .

You need to do some measuring work to make sure the stock adapter will give full spline fit . You might need to swap the short 205 input gear for a long input gear used on round 6 style 205 to get you were you need to be . Another option if trans is not built yet is a 2wd full spline shaft and cut off extra as needed . Then also machine the index lip down a few tho to fit in the case bore on the 4l80-e .

And how do you plan to run the trans with no electric speedo sender on the 205 ?

There is ways around this . Few places do mod them for a sensor now . But you loose mech speedo .