Pinion and side bearings pitted. Replaced rear end bearings - reset backlash and setup. This makes 4 times for rear end repairs

Had lots of road noise in cab that was continually getting worse so had dealer test drive and they diagnosed bad bearings in rear differential. Had to replace both pinion bearings, seals, gasket, and lubricant in rear end. This is the 3rd time since 2010 these bearings had to be replaced.

Noise in rear end dealer test drove, found noise coming from rear differential. Removed carrier, found side bearings and pin bearings pitted. Replaced side and pin bearings/set backlash and preload-OK. Warranty work with $300 deductible.

12/27/2010, had 40,070 miles on vehicle and there was a thumping noise more obvious at slow speeds, had Dealer test drive and found right side bearing in the rear differential was making noise. They replaced both pinion bearings, side bearings, both drive shaft axles and seals. Also rotated tires.