GM 8.5" & 8.6" 10 Bolt
3.73 Nitro Ring & Pinion


 
Differential: GM 8.5" & 8.6" 10 Bolt
Gear Ratio: 3.73
Tooth Count: 41/11
Pinion Splines: 27
Ring Gear Bolts: 10 (not included)
Manufacturer: Nitro Gear & Axle
Warranty: 2 Years

 

Vehicle Applications:

1973-1977 Buick Regal

1973-1977 Buick Apollo

1973-1977 Buick CenturyBuick Roadmaster

1984-1987 Buick Grand National & 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 & T/A

1971-1977 Pontiac Ventura

1975-1995 Chevy G10 & G20 Van

1996-2010 Chevy Express 1500 Van

1975-1995 GMC Vandura G10 G20 Van

1996-2010 GMC Savana 1500 Van

1980-1987 Chevy & GMC C10 K10 Pickup

1988-1998 Chevy & 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

Tech Note:
Nitro 8.5/8.6 gears work on both GM 8.5" and GM 8.6" Differentials.
For 8.5" use MKGM8.5
For 1999-2008 8.6" use MKGM8.6
For 2009-2014 8.6" use MKGM8.6-B

We also offer a custom Nitro ABS Reluctor Ring which eliminates crush sleeve for Caprice & Impala models (includes shims).

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

(GM8.5-373-NG)

SKU GM8.5-373-NG
Model # GM8.5-373-NG
Barcode # 9319478674745
Brand Nitro Gear
Shipping Weight 8.3900kg
Shipping Width 0.280m
Shipping Height 0.140m
Shipping Length 0.155m