Report: Front and Rear Differential Pinion Seal and Transfer Case Leaks
Jeep Wrangler Problem
Drive Trains Affected: 4WD, Automatic Transmission, Manual Transmission
Average Mileage: 79,266 mi (35,500 mi - 122,000 mi)
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.
Visitor, 2004 Jeep Wrangler, Manual Transmission, 35,500 mi
im a chrysler technician and own a wrangler myself, this is the bigget problem on the wrangelers up to 2006 the front and rear pinion seals leak. these cars are industructible though nothing can stop the 4.0liter inline 6
Visitor, 1994 Jeep Wrangler, Manual Transmission, 122,000 mi
Currently have a small leak in my transfer case. I got an estimate and it looks like it will cost around $500 to fix.
Visitor, 1995 Jeep Wrangler, Manual Transmission, 118,000 mi
rear end leaking at pinion. transfercase leaking all over.
Told this is the normal with jeeps. Need to take in and have flushed and sealed
Standard leakage from silicone seal at differential. About $150 to repair at dealership.
Visitor, 2001 Jeep Wrangler, Automatic Transmission, 79,700 mi
Recently purchased this 2001 Jeep Wrangler Sahara. Great vehicle - fun ride. Took it in to a well known 4WD specialty shop for a complete inspection and "once-over." They were very complimentary of the condition of the vehicle overall - everything checked out good. However, they noted a rear pinion seal needed replacement. Quoted $700+ which seemed a bit high but they have a very good reputation in the area so I trust their judgement. Don't mind paying a bit more for good, quality work.
Visitor, 2008 Jeep Wrangler, Automatic Transmission, 74,000 mi
Front pinion seal been leaking for a while - now at 80,000 mi getting ready to repair. Was going to attempt myself, but due to high torque requirements, may take ot professional.
Front Differential Pinion Seal Leak, left of center
Visitor, 2004 Jeep Wrangler, Manual Transmission, 89,000 mi
Rear pinion seal leaking.
Visitor, 2000 Jeep Wrangler, Manual Transmission, 74,000 mi
I didn't have a problem, but during an oil change I was told there was a leak in the differential seal. My Son In Law is a mechanic, I took it there and he fixed it. A couple of months later, he fixed it again, both times by installing a new seal.