Then I'll assume it has the AX15 behind it as no one in their right mind would put an ax5 behind a V8. It will be the 23 spline. What vehicle is it in? I know Dodge Dakota also ran the ax15/231 as alot of people borrow the bell housing to put in later YJs for the external slave swap.
Chevy also ran them and had a different spline count as well, don't remember what it was though and it won't bolt up to the jeep versions. Need to know what it's in or came out of.