Well, as long as it's not a 2.4L, I'd say it should work. The only differences that I've encountered was with the rotor they send you. (YJ and TJ are different) The wire routes should all be the same lengths. Coil plug should be the same too.
Looking at their listing in 4WD, I see they've got the 4.0L's years a bit screwy too. It reads '93-99. It should read '91-99. The 2.5L reads '91-99 though. I bet they screwed up and someone thought they put the Multi-Pak on the 2.5L in '00 like they did on the 4.0L.