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 8.5 Inch and GM 8.6 Inch 10 Bolt
• Location: Rear
• Rotation: Standard
• Gear Ratio: 3.42
• Tooth Count: 41/12
• Material: 8620 Steel
• Pinion Spline: 30
• Ring Gear Bolts: 10 (Not Included)
• Manufacturer: Nitro Gear and Axle
• Warranty: 2 Years
• Sold As A Set

Tech Notes:

• Nitro 8.5 and 8.6 gears work on both GM 8.5 inch and GM 8.6 inch Differentials
• For 8.5 inch use MKGM8.5
• For 1999-2008 8.6 inch use MKGM8.6
• For 2009-2014 8.6 inch use MKGM8.6-B

Fits Vehicles:

• 1973-1977 Buick Regal
• 1973-1977 Buick Apollo
• 1973-1977 Buick Century and Buick Roadmaster
• 1984-1987 Buick Grand National and GNX
• 1970-1981 Chevy Camaro
• 1973-1977 Chevy Chevelle
• 1973-1977 Chevy Malibu
• 1973-1977 Chevy Monte Carlo
• 1970-1975 Chevy Nova
• 1973-1977 Chevy El Camino
• 1971-1996 Chevy Caprice
• 1971-1985 Chevy Impala
• 1994-1996 Chevy Impala SS
• 1970-1981 Pontiac Firebird and T/A
• 1971-1977 Pontiac Ventura
• 1975-1995 Chevy G10 and G20 Van
• 1996-2010 Chevy Express 1500 Van
• 1975-1995 GMC Vandura G10 G20 Van
• 1996-2010 GMC Savana 1500 Van
• 1980-1987 Chevy and GMC C10 K10 Pickup
• 1988-1998 Chevy and GMC C1500 (2wd only)
• 1999-2010 Chevy Silverado 1500 (Not HD or 4x4)
• 1999-2010 GMC Sierra 1500 (Not HD or 4x4)
• 1980-1991 Chevy K5 Blazer 2wd or 4wd
• 1980-1991 GMC K5 Jimmy 2wd or 4wd
• 1980-1991 Chevy Suburban 1500 2wd or 4wd