Transmission Output Seal May Leak Fluid on GMC Jimmy

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.

RepairPal Verified
Average mileage: 173,405 (137,434–197,000)
Drive Trains affected: 2WD, 4WD
7 model years affected: 1992, 1993, 1994, 1995, more1996, 1997, 1998
15 people reported this problem
4 people shared problem details
1996 GMC Jimmy- 4WD170,000
transmission fluid is now in side 4wd actuator vacuum
1995 GMC Jimmy- 4WD179,000
Got home from vacation to see a 4 foot wide transmission fluid river flowing from my car to my neighbors garage!!!!
1997 GMC Jimmy- 4WD197,000
tranny fluid leaks and I check the stick it says its fine.it only leaks when hot
1997 GMC Jimmy- 4WD197,000
transmission just above the transmission stick housing. I thought it was the o-ring replaced still leaking
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