Hey so i know that they make a 21 spline AX-15, which I am assuming is the 88-91 rebuilt AX-15c (found on tellico4x4.com). My BA10/5 is shot as I said on previous post. instead of rebuilding the POS BA10/5 I want to swap in the AX-15 and can get the trans for 1100 but wanna know if i will need a new bell housing? etc.