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  Store > Eaton Truetrac >

Eaton Truetrac for GM 8.5" / 8.6" | 30 Spline (2.73 & Up)
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Price: $629.99


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Availability: Usually Ships in 3 to 5 Days

Part Number: EAT-913A481

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Description
 

Part Number: Application: Axle Shafts: Gear Ratios:

913A481
GM 8.5" / 8.6"
30 Spline
2.73 +

This Eaton Truetrac fits GM 8.5" / 8.6" axles with 30 spline c-clip axle shafts and 2.73 and higher gears.

1999-2013 GM 8.6" axles require LM603049 / LM603012 bearings.

1998 and older GM 8.5" axles use standard LM102949 / LM102911 bearings.
For 1998 and older axles, verify spline count before ordering.

This differential will only work with 2.73 and numerically higher gears. Do not use thick gears.
For more information, please see Thick Gears and Carrier Breaks.


Cadillac Escalade 1999 - 2019 Rear
Chevy Avalanche 1500 2002 - 2006 Rear
Chevy Blazer* 1988 - 2005 Rear
Chevy Blazer K5* 1979 - 1986 Front / Rear
Chevy / GMC C1500* 1988 - 1999 Rear
Chevy C2500* 1989 - 2000 Front
Chevy Caprice* 1989 - 1996 Rear
Chevy Colorado 2004 - 2012 Rear
Chevy Express 1500* 1996 - 2014 Rear
Chevy G10/G20* 1988 - 1995 Rear
Chevy K1500* 1988 - 1999 Front / Rear
Chevy K2500* 1988 - 1991 Front / Rear
Chevy Silverado 1500 1999 - 2019 Rear
Chevy Suburban* 1988 - 2008 Front / Rear
Chevy Suburban 2015 - 2019 Rear
Chevy Tahoe* 1995 - 2019 Rear
GMC C1500/K1500* 1988 - 1999 Front / Rear
GMC K2500* 1988 - 1991 Front / Rear
GMC Canyon 2004 - 2012 Rear
GMC Envoy 2002 - 2009 Rear
GMC G1500/G2500* 1988 - 1995 Rear
GMC Jimmy* 1994 - 2005 Rear
GMC Savana 1500* 1996 - 2014 Rear
GMC Savana 2500* 1996 - 1998 Rear
GMC Sierra 1500 1999 - 2019 Rear
GMC Sonoma* 1994 - 2004 Rear
GMC Yukon* 1992 - 2019 Rear
GMC Yukon XL 2000 - 2014 Rear
Hummer H3 2006 - 2010 Rear

*Verify axle spline count for 1998 and older model year vehicle.

Application chart is for reference only, vehicle configurations may vary.
Customer is responsible for confirming fitment before ordering.
Contact us directly with any questions.


Eaton Truetrac lockers are Torsen style limited slip differentials that use helical gears instead of clutch packs to offer automatic torque biased traction to both drive wheels at all times. The ingenious design limits the speed of each wheel to 1.5 times faster or slower than the opposite wheel to provide full-time traction while still allowing for wheel speed differentiation in turns. The heavy duty all-gear design not only makes for quite and smooth operation, it requires no maintenance and will never weaken or wear out like a typical limited slip differential. These unique features make the Eaton Truetrac ideal for race cars, rally cars, trail rigs, full size trucks, and daily drivers.
Cutaway image of a Torsen differential.


Video: How Does The Truetrac Compare To Other Lockers?

[ Jump To Truetrac Section of Video | Crawlpedia Differential Locker Comparison ]



(Truetrac information starts at 6:06 or click here.)


Eaton specifically designed and built the Truetrac locker for use in 4x4 vehicles and to withstand the abuses of off-roading. Precision forged gears, high strength materials, and high-tech manufacturing procedures make the Truetrac one of the most durable and reliable limited slip lockers on the market today. They are easy to install and maintenance free.
Features
  • Torque biasing helical gear design
  • Smooth, quiet, and automatic operation
  • Works in front or real axle applications
  • Maintenance free limited-slip locker
  • Heavy duty construction
  • ABS Compatible


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