I Had The Same Problem. Noticed Oil Spots On Rear Bumper And Trailer I Was Pulling Last Week. Monday Went To Monroe, La Got Back To Hattiesburg, Ms And Took A Look Under Truck. Bed And Fuel Tank Covered With Gear Oil. Dropped It Off At Local Dealership In Hatt., Petro Motors. Pinion Seal Was Bad, Replaced Under Warranty And Did The Rear Door Wire Harness Recall. Completed In 1/2 Day. Great Service !!! Sounds Like You Have The Exact Same Problem. Better Call Gray Danials And Let Them Take A Look.
My Truck 2005, 25,700 Miles.
My Truck 2005, 25,700 Miles.