Just replaced the 4 tie rod ends on my WJ with moog parts, including a new moog tie rod bar. Put an extra shot of grease on them also on assembly, then off to get the alignment done.
My Jeep is 10 years old with 75000 miles, and I believe it was on the original tie rod ends. (its had no hard off road use) They all had slight wear showing, but couild have lasted a bit longer.
Anyway the new parts really have tightened up the steering. All those "small" amounts of wear on each part show up under load.
Ive had a slight drift to the left on my jeep, and although these parts alone didnt cure that, I do feel a "slight" reduction in the drift.
New shocks next on list !