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On January 26, 2026, AAM – American Axle & Manufacturing Holdings, Inc. changed its name to Dauch Corporation. Learn more here.

GM: 8.9" 10 Bolt - Rear Axle

Axle Shafts

Axle: Axle Shafts

AAM#Vehicle MakeModelYearAxle TypeSide L/R# of TeethLengthNotes
40215673GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleL33818.44LH SHAFT ASM ML-LSD NT. Shaft Asm with studs and exciter ring
40215674GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleR33786.86RH SHAFT ASM ML-LSD NT. Shaft Asm with studs and exciter ring
40215675GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleL33862.44LH SHAFT ASM ML-LSD WT. Shaft Asm with studs and exciter ring
40215676GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleR33831.36RH SHAFT ASM ML-LSD WT. Shaft Asm with studs and exciter ring
40215677GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleL33871.14LH SHAFT ASM STD/ELD WT. Shaft Asm with studs and exciter ring
40215678GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleR33823.16RH SHAFT ASM STD/ELD WT. Shaft Asm with studs and exciter ring
40215681GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleL33826.64LH SHAFT ASM STD NT. Shaft Asm with studs and exciter ring
40215682GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleR33778.66RH SHAFT ASM STD NT. Shaft Asm with stud and exciter ring
Differential Cases - Internal Gears

Axle: Differential Cases - Internal Gears

AAM#Vehicle MakeModelYearAxle TypeAxle Ratio# of TeethNotes
40236782GMColorado, Canyon2023 - 20258.9" 10 Bolt - Rear Axle3.4233Diff Open
Differential Cases - Traction Enhancing

Axle: Differential Cases - Traction Enhancing

AAM#Vehicle MakeModelYearAxle TypeAxle Ratio# of TeethNotes
40237307GMColorado, Canyon2023 - 20258.9" 10 Bolt - Rear Axle3.4233E-Locker Differential
40246512GMColorado, Canyon2023 - 20258.9" 10 Bolt - Rear Axle3.4233MLocker Differential
Differential Cover Pans

Axle: Differential Cover Pans

AAM#Vehicle MakeModelYearAxle Type
40212347GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear Axle
Pinion Flanges

Axle: Pinion Flanges

AAM#Vehicle MakeModelYearSeriesAxle Type# of TeethNotes
40184029GMColorado, Canyon2022+Plate8.9" 10 Bolt - Rear Axle30Includes deflector
Ring & Pinion Gear Sets

Axle: Ring & Pinion Gear Sets

AAM#Vehicle MakeModelYearAxle TypeAxle RatioNotes
40268032GMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear Axle3.428.9" 3.42 Gearset
Seals and Gaskets

Installation Parts and Kits: Seals and Gaskets

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40269085Coverpan GasketGMColorado, Canyon2023 - 20268.9" 10 Bolt - Rear AxleGasket Cover Pan