I meant is the idler bearing a critical replacement or is it just to remedy the squeal cause cash is a little tight right now with school starting and all.
Eventually they will fail and you won't be very happy. When they make noise, you've got a dry, gritty unhappy bearing (or 2). It's really easy, just follow the writeup- and the 2 bearings will be less than $30.
2002 Super Black 5 Speed 4x4
AC Shackles/UCAs, 2" BL, 33x10.5" BFG ATs on Desert Runners, ARB front bumper, Skid Row rear bumper, Calmini IAB, AC HD TRAs, Bandit 4x4 idler arm bushings, Bilsteins, K&N CAI, Magnaflow muffler, Doug Thorley Headers, some audio stuff, backup camera. Shovel Mount