Device connecting Drive Shaft to Axle Shafts that allows for varied speeds of wheel rotation. Differential Code AAAP,AACJ,BAAM. Differential Code AAAZ. Drive Ratio 3.42. Axle. Cable. Carrier housing. Center Differential.

Differential

Fits Sierra 1500 (2014 - 2019)

4WD, 3.42 ratio. 4WD, 3.42 ratio, code: AAAZ. 4WD, 3.42 ratio, code: AACJ. 4WD, 3.42 ratio, code: AACU. Sierra, Silverado; 3.42 Ratio.
Differential - Repair or Replace
If you’re hearing gear whine, clunking, or bearing noise from your rear differential, it may be necessary to remove it and have it rebuilt. Have our technicians examine your GMC Sierra 1500 to determine the best course of action.