Grand Cherokee

Front and Rear Differential Pinion Seal and Transfer Case Leaks on Jeep Grand Cherokee

Problem Description and Possible Solution

Leaks at the front and/or rear differential pinion seal and from the transfer case are common. Leakage from the transfer case normally occurs at the case-mating surfaces and require removal of the transfer case to reseal.

Problem Data
RepairPal Verified
Average mileage: 123,177 (35,000–377,000)
Drive Trains affected: 4WD, Automatic Transmission
17 model years affected: 1993, 1994, 1995, 1996, more1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2012
94 people reported this problem
Viewing 1 - 20 of 29 comments
Every time I hit gas I hear a loud sound, checked it twice; the 1st mechanic said it's the bearing seal and the oil connected to that which was nasty and the 2nd one said it's the rear deferential that went bad.. Can you help me know which one is true?
is it possible cleaning the Oil case and changing it would fix the sound?
I have a 2005 Jeep Grand Cherokee 3.7L with only 45,000 miles. Boought it with 40,000 miles. So far had to replace crankshaft sensor, 2 front wheel bearings and now have a leaking back pinion seal. Is there any warrenty help from Jeep?
Ft differential pinion seal, RF axle seal, transfer case output seal, oil pan gasket all leaking and need to be repaired.
Leak at rear differential pinion seal also transmission leak at the selector shaft seal on the side of the transmission. Both discovered the same month where no leaks at all the previous month during dealer inspection when struts were changed.
I had repairs at Dealer due to Whirring sound in rear differential, At 53,000 miles, 68,000 miles, 83,000 miles, and 109,000 miles Chrysler has know about this problem why won't they correct it Now that the warranty is over the dealer want 2,500.00 to repair
My 2005 grand cherokee had the real seal leaking. When I took it in for service, they "found" the transmission seal leaking and fixed that also, this was not noticable prior to me taking it in. The next day fairly large muddle of tranny fluid on the ground. Now the Tranmission adaptor plug needs to be replaced. Thankfully I bought the extended warrenty when I purchased the vehicle and only had to pay a $100.00 deductible. Had a 2000 grand cherokee with 156,000 miles and the only problem was a fuel pump!?!? What happen?
08 GC 4x4 limited HEMI 137k- Rear diff pinion seal leak, caught it very early, $75 repair at local ring and pinion shop
Had rear differential pinion seal repaired Feb '09 and was told again yesterday that it is leaking again as well as the front now.
Pinion seal leak repaired at Dealership. Now, at 190000 miles, transfer case leak discovered. Going back to dealership tomorrow to pinpoint source of leak.