There is a loud noise coming from the drive train of the vehicle. Believe it may be related to the rear differential. The Jeep dealer at the 30,000 mile service put the wrong fluid in and it was driven before I caught it. All the seals under the vehicle leaked again at 59,000 and another Jeep dealer supposedly replaced the fluids with the right type.

- Watertown, WI, USA

Tie rod ends replaced. Cooling fan sensor, front wheel bearings, rear differential completely rebuilt, what's next? will never buy a Chrysler product again!!!!!!!!

- Dousman, WI, USA

Between years 3 and 5 replaced both tail light assembly units. Not covered under extended warranty. Problem starting vehicle. Took to dealer at least 5 times. Dealer kept replacing fuel pump and saying it was bad. Problem still occurs. Replaced transmission sensor. Replaced hood hydraulics. Now hearing noise from rear end at any speed. Being told by my mechanical that rear end needs to be replaced.

- Apopka, FM, USA

Rear axle pinion gear and bearing failure due to retaining nut backing off. If left unfounded failure of drive train and rear axle lock up would occur. Initial thought by mechanic universal joint was bad. Further investigation found retaining nut backed out, ring and pinion gear and axle bearings chewed up as result of nut backing off.

- Bedford, TX, USA

99 Jeep gc limited 30,000 miles. Replaced rear end. Replaced rotors and pads 3 times. Replace transmission sensor. Replace hood Ram. Needs new front differential.

- Glendale, CA, USA

Premature rear differental failure @40,000 miles.

- Glendale, CA, USA

While driving at any speed the consumer could here a loud rubbing noise coming from the rear end of the vehicle. The dealer examined the vehicle and found that the rear differential was defective. Since September of 1999 the differential has been replaced four times.

- Nazareth, PA, USA

Noise in the drive train was the result of a failed differential bearing. The consumer was told that contamination was likely the cause of the failure.

- Point Pleasant, NJ, USA

1999 Jeep Grand Cherokee loredo exhibits the following problems: 1) lurch when shifting from park to reverse along with a noticeable 'thump' noise 2) humming noise at highway speed (65-75 mph) that graduated into a sudden 'pop' noise. This issue caused a loud grinding noise which I am now trying to deal with. Dealership informed me that this was a common problem in 1999 and 2000 model year for rear differential due to diffential supplier to Chrysler overtorqueing differential components. 3) driver's side door lock failure

- Murfreesboro, TN, USA

I started hearing a grinding noise from the rear of the vehicle, and was told that the rear end had to be replaced. This included the differential unit, along with the carrier bearings, and wheel bearings.

- Laurens, NY, USA

My 1999 Jeep Grand Cherokee (gc) limited 8 cylinder quadradrive has given me nothing but problems since I bought it in October of 2002. I had the transfer seal replaced due to it leaking, the differential makes noise, the all wheel drive does not work (all wheel drive only works in low), and the tires lock up and make a noise when I am turning. It seems that their are other 1999 Jeep gc owners out there with the same problem. How about a recall to fix this problem?

- Hawthorne, NJ, USA

Excessive noise from rear differential. Dealer states components within differential are coming apart and that differential needs to be re-built. My cost is going to be between $1050 and $1300 for repair. I noted several other complaints from other consumers at the NHTSA site. Dealer states its a common problem. My previous 1988 Jeep did not have this problem. Any movement by NHTSA to force a recall or some adjustment from diamler-Chrysler or am I just out of luck?

- Fayetteville, GA, USA

While driving the rear end of the vehicle feels like its dragging on the ground. Took to mechanic, and mechanic replaced the differentral.

- San Francisco, CA, USA

The entire rear differential had to be replaced.

- Richlands, NC, USA

4 wheel drive failure on snowy incline vehicle came out of 4 wheel low, lost control of vehicle and vehicle slid backwards at least 75 to 100 ft. Into an embankment. Prior to this failure, I was coming up snowy driveway the night before and had vehicle in 4 wheel low and vehicle would not make it up hill and slid backwards on me, at that time I thought it was due to my driving however the next day it occurred again and realized that vehicle had kicked out of 4 wheel drive and only rear wheels working. Premature wearing of front brake pads and rotors causing vehicle to vibrate, shimmy and squeal when appling brakes.

- Mt. Hope, WV, USA

Consumer states that a noise would come from the rear end while driving at multiple speed. Vehicle taken to dealer and informed that the rear end of the vehicle needed to be replace. Feel free to provide any further information.

- Pine Plains, NY, USA

While driving there's a rattling noise. Took vehicle to dealer, and they stated it was the differential.

- San Jose, CA, USA

I belive the design/parts/assembly of this entire drivetrain are deffective, resulting in abnormal wear and inevitable premature failure. This, and any other, 1999 Jeep Grand Cherokee exhibit a driveline noise or whine at almost any speed. I do not know exactly what it is, but somethingS wrong. The internet is loaded with newsgroup posts from owners that experienced this fault. After many trips to the shop, while still under warranty, the servicing dealer finally explained the noise/whine was prevalent in every car of this model year. I was told Chrysler actually had a rating scale in place for the dealers to justify which vehicles they would attempt to repair. My letter to ChryslerS customer assistance center resulted only in a return phone call with a live with it attitude, which demonstrated their indifference or actually acceptance of this defect. With now over 100K miles, this design flaw has cost well into the thousands of dollars for repairs, not to mention the obvious value loss at the time of trade or resale.

- Maynardville, TN, USA

There was loud noise coming from the vehicle. When taken to dealer, dealer replaced differential.

- Indian Head Park, IL, USA

What a lemon! we are averaging $2000/year in repairs. Power windows that stop working, water pump breaks, brake rotors need replacing before brakes wear out, leaking differential, transmission, and now we're told by dealer service department we need a new transfer case. Whoever designed/built/sold this vehicle doesn't have much pride in their workmanship.

- Keystone, CO, USA