I have a Yukon Denali model year 2006 with the 6.0L AWDQuestion:  Which one of your front differentials would fit a 2006 GMC Yukon Denali AWD with 3:73 gears?Answer:  We can provide a rebuilt front differential assembly for your 2006 GMC Yukon Denali AWD with 3:73 gears. Order our part number MWT 440-01362, your cost is $862.50 exchange $250 core deposit plus freight. This unit is factory built and has a 12 month no hassle warranty. The rebuilt unit will include all new high quality bearings, gaskets, seals and ring and pinion gear. The ring and pinion will be 3.73 ratio and built from 8620 steel, C&C machined to exact tolerances.For additional information or to place the order give Scott a call toll free 1888-824-2012 he can help you.