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GM: 9.25" Clamshell - Front Axle

Differential Cases - Internal Gears

Axle: Differential Cases - Internal Gears

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AAM#	Vehicle Make	Model	Year	Axle Type	Axle Ratio	# of Teeth	Notes
40035046	GM	Sierra, Silverado, H2	2007 - 2014	9.25" Clamshell - Front Axle	3.42+	33 / 1.41"	Has relocated snap ring grooves and no spacer - Will not service 2006 and earlier GM 9.25" IFS Axles

Differential Cases - No Internal Gears

Axle: Differential Cases - No Internal Gears

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AAM#	Vehicle Make	Model	Year	Axle Type	Axle Ratio	# of Teeth	Notes
14012695	GM	Sierra, Silverado	1986 - 2013	9.25" Clamshell - Front Axle	3.42+	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

Axle: Output Shafts

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AAM#	Vehicle Make	Model	Year	Axle Type	Side L/R	# of Teeth	Length	Notes
40029252	GM	Sierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade	1988 - 2013	9.25" Clamshell - Front Axle	I/O Shaft	33	157	4WD
40039201	GM	Sierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade	1997 - 2013	9.25" Clamshell - Front Axle	R	33	357	4WD
40057071	GM	Silverado, Sierra, Hummer H2	2008 - 2013	9.25" Clamshell - Front Axle	L	33	148	4WD & AWD - Can service 2007 & earlier applications when used with diff gear kit 74040363
40057073	GM	Hummer H2	2007 - 2009	9.25" Clamshell - Front Axle	R	33	517	AWD - Can service 2006 & earlier applications when used with diff gear kit 74040363 & 40057071 left hand shaft

Axle: Pinion Flanges

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AAM#	Vehicle Make	Model	Year	Series	Axle Type	# of Teeth	Notes
40025925	GM	Silverado, Sierra, Tahoe, Suburban, Avalanche, Escalade	1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998	1344 Yoke	9.25" Clamshell - Front Axle	30 / 33.39

Ring & Pinion Gear Sets

Axle: Ring & Pinion Gear Sets

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AAM#	Vehicle Make	Model	Year	Axle Type	Axle Ratio	Notes
40072307	GM	2500, 3500, Silverado, Suburban, Sierra, Yukon	1988 - 2010	9.25" Clamshell - Front Axle	4.10 / 10x41
40136007	GM	2500, 3500, Silverado, Suburban, Sierra, Yukon	1988 - 2010	9.25" Clamshell - Front Axle	5.13 / 8x41
40140594	GM	2500, 3500, Silverado, Suburban, Sierra, Yukon	1988 - 2010	9.25" Clamshell - Front Axle	3.42 / 12x41

Adjusters and Retainers

Installation Parts and Kits: Adjusters and Retainers

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
15521875	Diff Case Adjuster Retainer	GM		1988 - 2010	9.25" Clamshell - Front Axle	LOCK TAB
26031703	IFS Axle Output Shaft Snap Ring	GM		1988 - 2010	9.25" Clamshell - Front Axle	RH LONG SHAFT IN TUBE
26045211	Differential Case Adjuster	GM		1988 - 2010	9.25" Clamshell - Front Axle	RH INTERNAL ADJUSTER
40040610	IFS Axle Output Shaft Snap Ring	GM		1988 - 2010	9.25" Clamshell - Front Axle	LH SHORT SHAFT / LH & RH AWD SHAFTS (replaces 15521878)

Collapsible Spacers

Installation Parts and Kits: Collapsible Spacers

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
14012691	Collapsible Spacer	GM	All	1988 - 2010	9.25" Clamshell - Front Axle

Differential Gear Kits

Installation Parts and Kits: Differential Gear Kits

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
74040363		GM	Sierra, Silverado, Suburban, Yukon, Savana, Express, Avalanche,	2007 - 2010	9.25" Clamshell - Front Axle
74047037		GM	Sierra, Silverado, Suburban, Yukon XL, Avalanche, H2	1981 - 2006	9.25" Clamshell - Front Axle

Disconnect Shifter Kits

Installation Parts and Kits: Disconnect Shifter Kits

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
74080008		GM	Sierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade	2001 - 2012	9.25" Clamshell - Front Axle

Master Bearing Kits

Installation Parts and Kits: Master Bearing Kits

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
74067005		GM	Sierra, Silverado, Suburban, Yukon XL, Avalanche,	1988 - 2013	9.25" Clamshell - Front Axle

Needle Bearings

Installation Parts and Kits: Needle Bearings

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
15521873	IFS Output Needle Bearing	GM	All	1988 - 2010	9.25" Clamshell - Front Axle	41x51x16
15530296	IFS Output Needle Bearing	GM	All	1988 - 2010	9.25" Clamshell - Front Axle	38x48x16
26041516	IFS Output Needle Bearing	GM	All	1988 - 2010	9.25" Clamshell - Front Axle	11x17x13

Nuts, Washers, and Bolts

Installation Parts and Kits: Nuts, Washers, and Bolts

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
11503877	IFS Tube & Carrier Bolt	GM		1988 - 2010	9.25" Clamshell - Front Axle	M6 x 1.0 x 14 - 6 PT HEX (IFS ADJUSTER)
11503963	IFS Tube & Carrier Bolt	GM		1988 - 2010	9.25" Clamshell - Front Axle	12mm OD x 6mm ID x 2mm WIDTH LOCK WASHER

Output Shaft Seal Kits

Installation Parts and Kits: Output Shaft Seal Kits

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Size	Notes
74050005		GM	Sierra, Yukon, Silverado, Avalanche, Tahoe, Suburban, Escalade	1997 - 2010	9.25" Clamshell - Front Axle	Only available by special order with a minimum buy of 20 per order

Pinion Seal Kits

Installation Parts and Kits: Pinion Seal Kits

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
74020008		GM	Sierra, Silverado, Suburban, Yukon, Avalanche, H2	1999 - 2012	9.25" Clamshell - Front Axle

Seals and Gaskets

Installation Parts and Kits: Seals and Gaskets

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
40007712	Pinion Seal	GM		1988 - 2014	9.25" Clamshell - Front Axle
40051283	Output Seal	GM		1988 - 2010	9.25" Clamshell - Front Axle

Vents, Drain and Fill Plugs

Installation Parts and Kits: Vents, Drain and Fill Plugs

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AAM#	Part Type	Vehicle Make	Model	Year	Axle Type	Notes
00476753	Fill Plug	GM		1988 - 2010	9.25" Clamshell - Front Axle	M20x1.50x21.5
14042602	Fill Plug Washer	GM		1988 - 2010	9.25" Clamshell - Front Axle
15588383	Drain Plug Washer	GM		1988 - 2010	9.25" Clamshell - Front Axle
26058815	Drain Plug	GM		1988 - 2010	9.25" Clamshell - Front Axle	M12x1.50x35 w/ Magnet
40026655	Axle Vent	GM		1988 - 2010	9.25" Clamshell - Front Axle	M75x1.50 THREADED PLASTIC W/ 9MM BARB