i have a trans builder saying my trans might be a 4l65e and my car is a 98 trans am and was wondering if he was right? i ordered a 4l60e over the net and not going to say untill i get this all fixed. but the shafts on my new trans is diffrent from my old on the one i have that car out the car is larger than the 4l6oe they sent me. , dose anyone know the physical diffrences between the two trans?