Nitro Gear & Axle

Dana 44HD 3.55 Ratio Ring & Pinion Nitro Gear & Axle D44HD-355-NG

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Short Description

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Dana 44HD 3.55 Ratio Ring & Pinion Nitro Gear & Axle

Part # D44HD-355-NG

Nitro gears are manufactured from 8620 steel gear forgings in the same manufacturing facilities as GM, Dodge, Ford and 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.
Tech Note:

  • Double-drilled with 3/8 inch and 7/16 inch ring gear bolt holes.
  • Differential: Dana Model 44HD
  • Gear Ratio: 3.55
  • Tooth Count: 46/13
  • Pinion Splines: 29
  • Ring Gear Bolts: 3/8 inch and 7/16 inch, 10 (not included)
  • Manufacturer: Nitro Gear and Axle
  • Warranty: 2 Years

WARNING : This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to