Chevrolet, GMC (6.0 - 4WD/RWD) Differential Ring and Pinion Kit - Rear - Yukon Gear and Axle - YGK2121

Gear & Install Pkg
YGK2121
4.10 & down carrier case, uses 1.625" long ring gear bolt under head length
,&,10,10.5,14T,4.56T,99,GEAR/,GM,GM,INSTALL,KIT,PACKAGE,R&P,REAR,SUV,THICK,TRK,YGK,
15-89 CHV/GMC
10.5" GM 14 Bolt 4.56 Thick Rear Ring & Pinion & Install Kit
14T 10.5" GM 4.56T THICK REAR R&P GEAR/ INSTALL KIT PACKAGE, '99-'10 GM TRK & SUV
Yukon Gear & Axle 10.5" GM 14 Bolt, 4.56 Ratio Thick Rear Ring & Pinion Gear Set and Master Install Kit Package,
Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon Master Overhaul Kits in one single part number. Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacting specifications and quality standards. These kits contain the gears, bearings, and all the small parts needed to fully rebuild your differential(s) and come in ratios from 3.73 to 5.38. Yukon offers its Y.E.S. Plan, a lifetime, comprehensive, no-questions-asked protection plan covering your gear set kit for as long as you own your vehicle.

If you are thinking about increasing tire size, looking for more towing power, enhancing off-road prowess, or just replacing worn gears, these convenient combo kits have everything your vehicle will need. Save money and time by letting Yukon pair the right high-quality gears with most comprehensive installation kits you can buy, all with one simple mouse click.
For Applications with 14 Bolt Rear Cover and 12 Bolt Ring Gear
Pro Kits feature the highest quality components and are backed by the best warranty in the business.
Pro Kits include premium Yukon ring and pinion sets, Yukon Master Install kits with high quality Timken bearings and the necessary small parts required to get vehicles off the lift and back on the road quickly.
Fits Carrier Cases Designed for 4.10 and Down Gear Ratio
The Ring Gear Diameter is 10.5"
Yukon Pro Kits offer premium differential repair & performance parts in several convenient packages to save time and money by including everything you need in one simple part number.
This particular kit contains a 4.56 Thick Ring & Pinion Gear Set
10.5" GM 14 Bolt 4.56 Thick Rear Ring & Pinion and Install Kit