I have an 02 Liberty. Last weekend when I installed my lift I noticed the rubber boots on my original UCA's were cracked (I had al's a-arms to install with the lift). Please check your rubber boots. My Liberty doesn't get driven much and lives in the garage - I have 29,500 miles on it.

Yea, the stock upper control arms are known to suck.

I check mine every oil change.

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LOST KJ'S
Where are you going???
Current Jeep: 2004 Jeep Liberty
-Atlantic Blue
-Air Ride Rear Suspension ; OME/Rustys Lift ; Powertrax Locker ; Moog Lower Ball-Joints ; 245/70/16 Yokohama Geolander A/T-S's on MOABS ; Flowmaster 50 SUV
Lost #007082
http://www.cardomain.com/id/jeepjeepster

So mine with 86K miles on it should prob get replaced then eh? Ill be in there swapping my Rustys coils with OME927's as soon as its warmer anyways. I have been considering the A arms but im trying to balance my free cash between Spring time Jeep projects and motorcycle projects!!! Tough choice!

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Pre-Lowered 02 Liberty
2.5" Rustys Coil w/ Ranchos in the rear.
ARB, OME927's, 1/4 strut plate and Als Gen 4.5 Uppers in the front.
Flowmaster Super 40 Series (GONE, SO QUIET!)
245/75/16 Kumho KL-78 w/ Spidertraxxxxx
Ripped out the plastic inner wheel liners
Herculined ALLLL over.....

Mine with almost 105k are dry-rot free. I'd imagine the cracking is from the lack of use.

Make sure to get an alignment after replacing your UCA's

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Have fun out there.

2003 Cactus Green Renegade w/ NP231 & NV3550
Al's 4th Gen UCAs
Custom 3.5" Lift
Rear DTT
Spidertraxed 245/75/16 Maxxis Bighorns