Which one of the '99+ Trackers are you looking at ?
Trackers were available with 1.6, 2.0 & 2.5 litre engines - the 99+ 1.6 engine has the same bellhousing bolt pattern as the pre-99 1.6 engines and the same adapter should work, if I'm not mistaken, the 2.0 also uses the same bolt pattern, and the adapter should work there also.