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Nitro Gear 11.8" AAM 4.88 Ring and Pinion
for 2019 and Newer Ram and GM 2500/3500

AAM 11.8" 4.88 Nitro Ring & Pinion

AAM 11.8" 4.30
Nitro Ring & Pinion
Price: $500.00

Product Code: AAM11.8C-488-NG
Coming Fall 2021!

Description Vehicle Applications Warranty Information

Nitro Gear 11.8" AAM 4.88 Ring and Pinion
for 2019 and Newer Ram and GM 2500/3500

2019 & Newer Ram 2500
2019 & Newer Ram 3500
2019 & Newer Chevrolet Silverado 2500
2019 & Newer Chevrolet Silverado 3500
2019 & Newer GMC Sierra 2500
2019 & Newer GMC Sierra 3500

Differential: AAM 11.8"
Gear Ratio: 4.88
Tooth Count: 39/8
Pinion Splines:
Ring Gear Bolts: (not included)
Manufacturer: Nitro Gear & Axle
Warranty: 2 Years

Nitro Gear & Axle strives to provide the highest quality differential components available. We take the steps necessary to ensure our parts are dependable. Our product range is continually growing to meet the needs of consumers for new ratios and Fits. At Nitro we know differentials, and know what it takes to provide you with high-quality components. 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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