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Transmission Output Seal May Leak Fluid on GMC Jimmy

Problem Description and Possible Solution

The transmission output shaft seal may leak transmission fluid. On 2WD models, this leak can cause the transmission mount to become oil soaked, which will require replacement of the mount along with the leak repair. On 4WD models, if this seal leaks, the fluid will leak into the transfer case, causing it to become overfull.

Problem Data
RepairPal Verified
Average mileage: 188,166 (137,434–275,900)
Drive Trains affected: 2WD, 4WD
7 model years affected: 1992, 1993, 1994, 1995, more1996, 1997, 1998
17 people reported this problem
Viewing 1 - 5 of 5 comments
transmission fluid is now in side 4wd actuator vacuum
Got home from vacation to see a 4 foot wide transmission fluid river flowing from my car to my neighbors garage!!!!
tranny fluid leaks and I check the stick it says its fine.it only leaks when hot
Fluid out of automatic transmission getting into transfer case
transmission just above the transmission stick housing. I thought it was the o-ring replaced still leaking