Nitro Gear and 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 applications. 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 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.
Details:

• Nitro Ring and Pinion Set
• Differential: GM 8.2 Inch 55P Drop-Out (1955-1964)
• Location: Rear
• Rotation: Standard
• Gear Ratio: 3.08 (3-Series Carrier)
• Tooth Count: 37/12
• Material: 8620 Steel
• Pinion Spline: 17
• Ring Gear Bolts: 10 (Not Included)
• Manufacturer: Nitro Gear and Axle
• Warranty: 2 Years
• Sold As A Set

Tech Note:

• Also available for 1955-1964 Chevrolet cars: Eaton Posi, Nitro Posi and Right and Left axle shafts

Fits Vehicles:

• 1958-1964 Chevy Impala
• 1958-1964 Chevy Biscayne
• 1955-1964 Chevy Bel Air
• 1955-1964 Chevy Nomad
• 1956-1962 Chevy Corvette