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AAM 11.5", 3.73 Ratio, Nitro Ring & Pinion
AAM 11.5" 3.73 Nitro Ring & Pinion

Price: $567.60

Product Code: AAM11.5-373-NG

Description Vehicle Applications Warranty Information

AAM 11.5"
3.73 Nitro Ring & Pinion

2003-2009 Dodge Ram 2500 w/ Cummins Diesel
2003-2009 Dodge Ram 3500 w/ Cummins Diesel
2001-2009 Chevrolet Silverado 2500HD w/ Duramax
2001-2006 Chevrolet Silverado 3500HD w/ Duramax
2001-2009 GMC Sierra 2500HD w/ Duramax
2001-2009 GMC Sierra3500HD w/ Duramax
2001-2006 Chevrolet Silverado 2500HD Vortec 8.1L Big Block
2001-2006 Chevrolet Silverado 3500HD Vortec 8.1L Big Block
2001-2007 GMC Sierra 2500HD Vortec 8.1L Big Block
2001-2007 GMC Sierra3500HD Vortec 8.1L Big Block

Differential: AAM 11.5", 14 Bolt
Gear Ratio: 3.73
Tooth Count: 41/11
Pinion Splines: 30
Ring Gear Bolts: 12 (not included)
Manufacturer: Nitro Gear & Axle
Warranty: 2 Years

Nitro gears are manufactured from 8620 steel gear forgings in the same manufacturing facilities as GM, Dodge, Ford & Toyota. They are precision machined using computer controlled processes, heat treated, CNC triple-lapped and Rockwell tested for hardness. These extra steps ensure excellent fitment, ideal contact pattern and smooth, quiet operation.

Nitro Gear and Axle Premium Differential Ring and Pinion Gears, Axles and parts


This product can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov

  • 2 Year Warranty*

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