GM: 9.76" 12 Bolt - Rear Axle

Axle Shafts

Axle: Axle Shafts

AAM#Vehicle MakeModelYearAxle TypeSide L/R# of TeethLengthNotes
40103091GMSierra, Silverado, 1500 Series Utility2007 - 20189.76" 12 Bolt - Rear AxleL/R33864.18With 6 Studs - Utility only
40103092GMSuburban, Yukon, Escalade2014 - 20179.76" 12 Bolt - Rear AxleL/R33878.18With 6 Studs - SUV only
40103094GMSierra, Silverado, 1500 Series Utility2007 - 20189.76" 12 Bolt - Rear AxleL/R33864.18Axle Shaft Machined. 40103091 without studs
40103091GMSierra, Silverado, 1500 Series Utility2007 - 20189.76" 12 Bolt - Rear AxleL/R33864.18With 6 Studs - Utility only
40103092GMSuburban, Yukon, Escalade2014 - 20179.76" 12 Bolt - Rear AxleL/R33878.18With 6 Studs - SUV only
40103094GMSierra, Silverado, 1500 Series Utility2007 - 20189.76" 12 Bolt - Rear AxleL/R33864.18Axle Shaft Machined. 40103091 without studs
40248180GMSilverado/Sierra 15002019+9.76" 12 Bolt - Rear AxleL/R33873.46T1XX 9.76" LH & RH AXLE SHAFT ASM ELOCKING
40248181GMSilverado/Sierra 15002019+9.76" 12 Bolt - Rear AxleL/R33874.28T1XX 9.76"LH & RH AXLE SHAFT ASM G80
40248180GMSilverado/Sierra 15002019+9.76" 12 Bolt - Rear AxleL/R33873.46T1XX 9.76" LH & RH AXLE SHAFT ASM ELOCKING
40248181GMSilverado/Sierra 15002019+9.76" 12 Bolt - Rear AxleL/R33874.28T1XX 9.76"LH & RH AXLE SHAFT ASM G80
Differential Cases - Internal Gears

Axle: Differential Cases - Internal Gears

AAM#Vehicle MakeModelYearAxle TypeAxle Ratio# of TeethNotes
40090727GM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20169.76" 12 Bolt - Rear Axle3.23 / 13x4233 / 1.41"Use with: 976K2323GEARKIT
40090728GM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20169.76" 12 Bolt - Rear Axle3.42, 3.7333 / 1.41"Use with: 976K2342GEARKIT or 976K2373GEARKIT
40090728GM1500 Series 6.2L V8 Pick up, Silverado, Sierra2019+9.76" 12 Bolt - Rear Axle3.4233 / 1.41"DIFFERENTIAL ASM, STANDARD T1XX REAR AXLE 9.5" 3.42
40090727GM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20169.76" 12 Bolt - Rear Axle3.23 / 13x4233 / 1.41"Use with: 976K2323GEARKIT
40090728GM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20169.76" 12 Bolt - Rear Axle3.42, 3.7333 / 1.41"Use with: 976K2342GEARKIT or 976K2373GEARKIT
40090728GM1500 Series 6.2L V8 Pick up, Silverado, Sierra2019+9.76" 12 Bolt - Rear Axle3.4233 / 1.41"DIFFERENTIAL ASM, STANDARD T1XX REAR AXLE 9.5" 3.42
Differential Cases - Traction Enhancing

Axle: Differential Cases - Traction Enhancing

AAM#Vehicle MakeModelYearAxle TypeAxle Ratio# of TeethNotes
40238476GMSilverado/Sierra 15002022+9.76" 12 Bolt - Rear Axle3.2333Differential with Electric Locker
40238476GMSilverado/Sierra 15002022+9.76" 12 Bolt - Rear Axle3.2333Differential with Electric Locker
Pinion Flanges

Axle: Pinion Flanges

AAM#Vehicle MakeModelYearSeriesAxle Type# of TeethNotes
40184028GMSilverado / Sierra 15002019+Pinion Flanges9.76" 12 Bolt - Rear Axle32FLANGE ASSEMBLY T1XX 9.5"/9.76" STD REAR AXLE
40197656GMSilverado / Sierra 15002019+Flange9.76" 12 Bolt - Rear Axle32FLANGE ASSEMBLY T1XX 9.76" ELD REAR AXLE
40184028GMSilverado / Sierra 15002019+Pinion Flanges9.76" 12 Bolt - Rear Axle32FLANGE ASSEMBLY T1XX 9.5"/9.76" STD REAR AXLE
40197656GMSilverado / Sierra 15002019+Flange9.76" 12 Bolt - Rear Axle32FLANGE ASSEMBLY T1XX 9.76" ELD REAR AXLE
Ring & Pinion Gear Sets

Axle: Ring & Pinion Gear Sets

AAM#Vehicle MakeModelYearAxle TypeAxle RatioNotes
976K2323GEARKITGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20189.76" 12 Bolt - Rear Axle3.23 / 13x42K2XX Aftermarket Gear Set Kit
976K2342GEARKITGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20189.76" 12 Bolt - Rear Axle3.42 / 12x41K2XX Aftermarket Gear Set Kit
976K2373GEARKITGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20189.76" 12 Bolt - Rear Axle3.73 / 11x41K2XX Aftermarket Gear Set Kit
976T1323GEARKITGMSilverado / Sierra2019+9.76" 12 Bolt - Rear Axle3.23 / 13x42T1XX Aftermarket Gear Set Kit
976T1342GEARKITGMSilverado / Sierra2019+9.76" 12 Bolt - Rear Axle3.42 / 12x41T1XX Aftermarket Gear Set Kit
976T1373GEARKITGMSilverado / Sierra2019+9.76" 12 Bolt - Rear Axle3.73 / 11x41T1XX Aftermarket Gear Set Kit
976K2323GEARKITGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20189.76" 12 Bolt - Rear Axle3.23 / 13x42K2XX Aftermarket Gear Set Kit
976K2342GEARKITGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20189.76" 12 Bolt - Rear Axle3.42 / 12x41K2XX Aftermarket Gear Set Kit
976K2373GEARKITGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20189.76" 12 Bolt - Rear Axle3.73 / 11x41K2XX Aftermarket Gear Set Kit
976T1323GEARKITGMSilverado / Sierra2019+9.76" 12 Bolt - Rear Axle3.23 / 13x42T1XX Aftermarket Gear Set Kit
976T1342GEARKITGMSilverado / Sierra2019+9.76" 12 Bolt - Rear Axle3.42 / 12x41T1XX Aftermarket Gear Set Kit
976T1373GEARKITGMSilverado / Sierra2019+9.76" 12 Bolt - Rear Axle3.73 / 11x41T1XX Aftermarket Gear Set Kit
ABS Tone Rings

Installation Parts and Kits: ABS Tone Rings

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40030759ABS Tone RingGM9.76" 12 Bolt - Rear AxleINSIDE AXLE TUBE - 32 TEETH (2007+ GMT900)
40030759ABS Tone RingGM9.76" 12 Bolt - Rear AxleINSIDE AXLE TUBE - 32 TEETH (2007+ GMT900)
Adjusters and Retainers

Installation Parts and Kits: Adjusters and Retainers

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
14012746Semi Float Axle C-LockGM9.76" 12 Bolt - Rear Axle
14012746Semi Float Axle C-LockGM9.76" 12 Bolt - Rear Axle
Collapsible Spacers

Installation Parts and Kits: Collapsible Spacers

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40088807Collapsible SpacerGM2014 - 20169.76" 12 Bolt - Rear Axle
40088807Collapsible SpacerGM2014 - 20169.76" 12 Bolt - Rear Axle
Electric Shift Actuators

Installation Parts and Kits: Electric Shift Actuators

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40243904Electric Shift ActuatorGMSilverado, Sierra 15002019+9.76" 12 Bolt - Rear AxleACTUATOR ASM T1XX 9.76" ELD REAR AXLE
40243904Electric Shift ActuatorGMSilverado, Sierra 15002019+9.76" 12 Bolt - Rear AxleACTUATOR ASM T1XX 9.76" ELD REAR AXLE
Master Bearing Kits

Installation Parts and Kits: Master Bearing Kits

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
74067021GMSierra, Silverado, Suburban, Yukon, Escalade, Denali, Avalanche,2014 - 20169.76" 12 Bolt - Rear Axle
74067034GMSilverado / Sierra 15002019+9.76" 12 Bolt - Rear AxleMASTER BEARING KIT T1XX LD 9.76" STD/ELOCKER Rear 2019+
74067021GMSierra, Silverado, Suburban, Yukon, Escalade, Denali, Avalanche,2014 - 20169.76" 12 Bolt - Rear Axle
74067034GMSilverado / Sierra 15002019+9.76" 12 Bolt - Rear AxleMASTER BEARING KIT T1XX LD 9.76" STD/ELOCKER Rear 2019+
Needle Bearings

Installation Parts and Kits: Needle Bearings

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40008157Axle Shaft Roller BearingGMAllAll9.76" 12 Bolt - Rear Axle41x71x26
40008157Axle Shaft Roller BearingGMAllAll9.76" 12 Bolt - Rear Axle41x71x26
Nuts, Washers, and Bolts

Installation Parts and Kits: Nuts, Washers, and Bolts

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40037574Pinion NutGM9.76" 12 Bolt - Rear AxleM22 x 1.5 - 6 PT FLANGE HEX - STAKE
40037574Pinion NutGM9.76" 12 Bolt - Rear AxleM22 x 1.5 - 6 PT FLANGE HEX - STAKE
40064367Ring Gear BoltGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20169.76" 12 Bolt - Rear AxleM12 x 1.5 x 22 - LH 6 PT FLANGE HEX W/ ADHESIVE
40064367Ring Gear BoltGM1500 Series 6.2L V8 Pick up and Utility, Silverado, Sierra, Yuko2014 - 20169.76" 12 Bolt - Rear AxleM12 x 1.5 x 22 - LH 6 PT FLANGE HEX W/ ADHESIVE
Seals and Gaskets

Installation Parts and Kits: Seals and Gaskets

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40088005Coverpan GasketGM9.76" 12 Bolt - Rear Axle(ROM)
40088808Pinion SealGM20149.76" 12 Bolt - Rear Axle
40088005Coverpan GasketGM9.76" 12 Bolt - Rear Axle(ROM)
40088808Pinion SealGM20149.76" 12 Bolt - Rear Axle