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GM 8.875" 12 Bolt, 12P, 4.56, Thick, Nitro Ring & Pinion
GM 8.875", 12 Bolt -Car, 12P, Thick Ring & Pinion

Price: $363.00

Product Code: GM12P-456T-NG

Description Vehicle Applications Warranty Information

GM 8.875" 12 Bolt - Car
4.56 Thick Nitro Ring & Pinion

1964-1972 Chevy Chevelle SS
1967-1972 Chevy Camaro SS
1965-1972 Chevy II Nova SS
1965-1972 Chevy El Camino SS
1967-1972 Pontiac Firebird
1970-1972 Pontiac Grand Prix
1965-1972 Pontiac GTO
1965-1972 Chevy Impala SS
1965-1972 Pontiac LeMans
1970-1972 Chevy Monte Carlo

Differential: GM 8-7/8" 12 Bolt - Car
Gear Ratio: 4.56
Tooth Count: 41/9
Pinion Splines: 30
Ring Gear Bolts: 12 (not included)
Manufacturer: Nitro Gear & Axle
Warranty: 2 Years

Note: Fits 3.08-3.90 Carrier Case

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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