The 2T comes with a T50, no such thing as a T52. However, there are two different T50s, with different numbers of splines on the output shaft (20 and 22), one type came out behind the 4AC/4AGE, and the other came out behind the 2T, and I'm pretty certain they aren't compatible. Plenty of info running around here and Toymods about which is which, some searching would do you good.