GM: 9.25" Clamshell - Front Axle

Differential Cases - Internal Gears

Axle: Differential Cases - Internal Gears

AAM#Vehicle MakeYearAxle TypeAxle Ratio# of TeethNotes
40035046GM2007 - 20149.25" Clamshell - Front Axle3.42+33 / 1.41"Has relocated snap ring grooves and no spacer - Will not service 2006 and earlier GM 9.25" IFS Axles View
Differential Cases - No Internal Gears

Axle: Differential Cases - No Internal Gears

AAM#Vehicle MakeYearAxle TypeAxle Ratio# of TeethNotes
14012695GM1986 - 20139.25" Clamshell - Front Axle3.42+33 / 1.41"USE 74047037 diff gear kit for 2006 and earlier GM 9.25" IFS applications. USE 74040363 dif gear kit for 2007 - 2013 GM 9.25" IFS CLAMSHELL Applications
Output Shafts

Axle: Output Shafts

AAM#Vehicle MakeModelYearAxle TypeSide L/R# of TeethLengthNotes
40029252GMSierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade1988 - 20139.25" Clamshell - Front AxleI/O Shaft331574WD
40039201GMSierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade1997 - 20139.25" Clamshell - Front AxleR333574WD
40057071GMSilverado, Sierra, Hummer H22008 - 20139.25" Clamshell - Front AxleL331484WD & AWD - Can service 2007 & earlier applications when used with diff gear kit 74040363
40057073GMHummer H22007 - 20099.25" Clamshell - Front AxleR33517AWD - Can service 2006 & earlier applications when used with diff gear kit 74040363 & 40057071 left hand shaft
Pinion Flanges

Axle: Pinion Flanges

AAM#Vehicle MakeSeriesAxle Type# of TeethNotes
40025925GM1344 Yoke9.25" Clamshell - Front Axle30 / 33.39
Ring & Pinion Gear Sets

Axle: Ring & Pinion Gear Sets

AAM#Vehicle MakeModelYearAxle TypeAxle RatioNotes
40058536GM2500, 3500, Silverado, Suburban, Sierra, Yukon1988 - 20109.25" Clamshell - Front Axle3.73 / 11x41
40072307GM2500, 3500, Silverado, Suburban, Sierra, Yukon1988 - 20109.25" Clamshell - Front Axle4.10 / 10x41
40136007GM2500, 3500, Silverado, Suburban, Sierra, Yukon1988 - 20109.25" Clamshell - Front Axle5.13 / 8x41
Adjusters and Retainers

Installation Parts and Kits: Adjusters and Retainers

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
15521875Diff Case Adjuster RetainerGM1988 - 20109.25" Clamshell - Front AxleLOCK TAB
26008812Diff Case Adjuster RetainerGM1988 - 20109.25" Clamshell - Front AxleT-CLIP
26031703IFS Axle Output Shaft Snap RingGM1988 - 20109.25" Clamshell - Front AxleRH LONG SHAFT IN TUBE
26045211Differential Case AdjusterGM1988 - 20109.25" Clamshell - Front AxleRH INTERNAL ADJUSTER
40015035Differential Case AdjusterGM1988 - 20109.25" Clamshell - Front AxleLH EXTERNAL ADJUSTER
40040610IFS Axle Output Shaft Snap RingGM1988 - 20109.25" Clamshell - Front AxleLH SHORT SHAFT / LH & RH AWD SHAFTS (replaces 15521878)
Collapsible Spacers

Installation Parts and Kits: Collapsible Spacers

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
14012691Collapsible SpacerGMAll1988 - 20109.25" Clamshell - Front Axle
Differential Gear Kits

Installation Parts and Kits: Differential Gear Kits

AAM#Vehicle MakeModelYearAxle Type
74040363GMSierra, Silverado, Suburban, Yukon, Savana, Express, Avalanche, H2, SSR, Trailblazer SS2007 - 20109.25" Clamshell - Front Axle View
74047037GMSierra, Silverado, Suburban, Yukon XL, Avalanche, H21988 - 20069.25" Clamshell - Front Axle View
Disconnect Shifter Kits

Installation Parts and Kits: Disconnect Shifter Kits

AAM#Vehicle MakeModelYearAxle Type
74080008GMSierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade2001 - 20129.25" Clamshell - Front Axle View
Master Bearing Kits

Installation Parts and Kits: Master Bearing Kits

AAM#Vehicle MakeModelYearAxle Type
74067005GMSierra, Silverado, Suburban, Yukon XL, Avalanche,1988 - 20119.25" Clamshell - Front Axle View
Master Install Kits

Installation Parts and Kits: Master Install Kits

AAM#Vehicle MakeModelYearAxle Type
74010011GMSierra, Silverado, Suburban, Yukon, Avalanche, H21999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 20129.25" Clamshell - Front Axle View
Needle Bearings

Installation Parts and Kits: Needle Bearings

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
15521873IFS Output Needle BearingGMAll1988 - 20109.25" Clamshell - Front Axle41x51x16
15530296IFS Output Needle BearingGMAll1988 - 20109.25" Clamshell - Front Axle38x48x16
26041516IFS Output Needle BearingGMAll1988 - 20109.25" Clamshell - Front Axle11x17x13
Nuts, Washers, and Bolts

Installation Parts and Kits: Nuts, Washers, and Bolts

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
11503877IFS Tube & Carrier BoltGM1988 - 20109.25" Clamshell - Front AxleM6 x 1.0 x 14 - 6 PT HEX (IFS ADJUSTER)
11503963IFS Tube & Carrier BoltGM1988 - 20109.25" Clamshell - Front Axle12mm OD x 6mm ID x 2mm WIDTH LOCK WASHER
Output Shaft Seal Kits

Installation Parts and Kits: Output Shaft Seal Kits

AAM#Vehicle MakeModelYearAxle Size
74050005GMSierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade1997 - 20109.25" Clamshell - Front Axle View
Seals and Gaskets

Installation Parts and Kits: Seals and Gaskets

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
40007712Pinion SealGM1988 - 20149.25" Clamshell - Front Axle
40051283Output SealGM1988 - 20109.25" Clamshell - Front Axle
Vents, Drain/Fill Plugs

Installation Parts and Kits: Vents, Drain/Fill Plugs

AAM#Part TypeVehicle MakeModelYearAxle TypeNotes
00476753Fill PlugGM1988 - 20109.25" Clamshell - Front AxleM20x1.50x21.5
14042602Fill Plug WasherGM1988 - 20109.25" Clamshell - Front Axle
15588383Drain Plug WasherGM1988 - 20109.25" Clamshell - Front Axle
26058815Drain PlugGM1988 - 20109.25" Clamshell - Front AxleM12x1.50x35 w/ Magnet
40026655Axle VentGM1988 - 20109.25" Clamshell - Front AxleM75x1.50 THREADED PLASTIC W/ 9MM BARB