Notes for anyone else with the same setup that may need a hand: On the '98 4.0L, it is unnecessary to remove the water pump. 1.)Use a 15mm socket to loosen the idler pulley, just a couple of turns. 2)At the end of the bracket that the idler pulley attached to, you will see another 15mm bolt that runs the length of the bracket. 3) Turn this counter clockwise until there is enough slack to remove the old belt. 4)Install the new belt and reverse these instructions. That's it, about 15 minutes not including time for applying band-aids for fan incidents during routing the new belt.
1998 ZJ Laredo. 4.0L inline 6 cyl with Poweraid TBS and a K&N backyard intake. Powerslot rotors with Powerslot metal matrix pads.