ZINGGG

Been trying to track down and correct an extremelyyyy squeaky front end ever since I got my XJ a year and a half ago.

I have replaced related to front end:
Sway bar links/bushings
Shocks
Upper control arms
Track bar

Lower control arms are in good shape. No metal on metal contact from what I can tell
Is it possible for worn coil spring isolators to cause a god awful squeak over every little bump?

I have a 4" Teraflex lift (Full springs, no spacer)

RatchetMaster10

They could cause one yes. Can you duplicate the noise by bouncing the front end while the jeep is just sitting there?

ZINGGG

Yep I sure can. Sign of bad isolators?

RatchetMaster10

Not necessarily, that would lead me more towards something like a control arm bushing. Even though they are good, the rubber can still squeak. Take some lube (white lithium, silicon, pb anything really) and soak each bushing in it and see if the noise changes. Also see if you can isolate it to one side of the jeep

ZINGGG

I can't believe I didn't think of doing that, damn good idea. Thanks man, I'll be doing that hopefully tomorrow

RatchetMaster10

It's all good man, give that a shot and let me know what happens

xj_maniac_newb

Do you have any sort of poly bushings anywhere? Poly bushings are sometimes known to squeak. Is your coil spring retainer still there? Did you replace the upper sway bar bushing as well (where it mounts on the unibody)? How bout your shocks, have you checked them?

ZINGGG

The only poly bushings I have are the sway bar bushings (unibody mounts). It was squeaking before and after those. And I just threw in Bilsteins yesterday actually so that's not it. And yeah, the spring retainer is still there.

xj_maniac_newb

Well ratchet master had the greatest idea. I'd go with the spraying lithium grease on whatever might be squeaking, drive it and check for squeaks, spray another possible culprit, drive it, etc.

ZINGGG

Yeah that's what I plan on. Thanks for the help so far guys, I'll be reporting back