After checking tons of posts I think my vibration problem is either some bearings or most likely the U-Joints that are vibrating when accelerating... My buddy just bought a new winch and I still want to go offroading this weekend to try it out. Any real danger for my Liberty? Dealer says its covered by the warrenty if it is in fact U-Joints... Just want to ride and still not break it! You all know that feeling....

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2005 Jeep KJ 4x4
Rusty's 2.5'' Coil Lift

Alot of people take libertys offroad. Its up to you weather or not it gets damaged or not.

Have you had the tires balanced/changed?

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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

If it is the ujoints and you get them under some pressure and they are bad enough then yes they can come apart. I can remember a certain 69 Cougar with a 390 that I street raced a lot, knew the rear joint was going to be needing replaced soon, so just when I was coming out of the hole and hit 2nd gear.................. tore up everything underneath!
Get underneath and check them out before you go so you know for sure its not worth walking home for.

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MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

Tires are brand new and just balanced... plus it only vibrates when I accelerate which most likely rules out balancing. The temptation is too much to go hit a rocky trail in the woods!

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2005 Jeep KJ 4x4
Rusty's 2.5'' Coil Lift

If it is the U-joints then it's not a big deal if they break. Last time I broke my U-joints was last fall on my truck. The U-joints failed on the freeway. I disconnected the rear drive shaft, threw her in four wheel and drove to the nearest parts store. 15 minutes later I was back on the freeway. All you need to do u-joints is a set of nice snap ring pliars, hammer, socket set, and a big C-clamp. Luckily for me I had all of those already in my truck.

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2005 CRD , Moab Rims, 245/75/16 Goodyear M/T
RL rear bumper, TMJ Front bumper, Frankenlinft,
*TOTALED*

1985 Mitsubishi Pickup SP 2.3 Turbo Diesel Watercooled turbo,4D56 ported head,
12" Suspension Lift with JK Rubicon axles, Elockers, 5.13's, Fox coilovers, Atlas 5.0, Rock Lizard supersliders

1996 Lexus LX450 -locked and lifted-

Newer vehicle u-joints are often retained w/ some vinyl/plastic crap that you have to heat the joint up to remove. Not positive that is how the KJ is done (IIRC I saw they were) but many vehicles for quite a while now are done that way.

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99 TJ
71 C101
04 KJ
03 SFA KJ Sport
LOST JEEPS So-Cal

Ny '02 u-joints are held in with c-clips,I think they changed that for later model years after putting in the 42RLE.My rear driveshaft is different also then newer one's.

Good to know

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2005 CRD , Moab Rims, 245/75/16 Goodyear M/T
RL rear bumper, TMJ Front bumper, Frankenlinft,
*TOTALED*

1985 Mitsubishi Pickup SP 2.3 Turbo Diesel Watercooled turbo,4D56 ported head,
12" Suspension Lift with JK Rubicon axles, Elockers, 5.13's, Fox coilovers, Atlas 5.0, Rock Lizard supersliders

1996 Lexus LX450 -locked and lifted-