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Differential Ring and Pinion (12 Bolt)

146081
146082
146083
146084
97

12BC456 Application Notes

Warranty

1 Year or 50,000 Miles

12BC456 Specifications

App Model GM 8.875 Car
Cover Bolt Quantity 12
Differential Carrier Break 3.90 Ratio and Higher
Differential Case Design Type GM 8.875 Car
Gear Ratio 4.56
Pinion Gear Tooth Quantity 9
Pinion Shaft Diameter 1.625 (Inch)
Pinion Spline Count 30
Ring Gear Bolt Quantity 12
Ring Gear Material 8620 Steel
Ring Gear Outside Diameter 8.875 (Inch)
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Taxonomy A LD Differential, LD Differential, LD Differential
Taxonomy B Ring and Pinion, Ring and Pinion, Ring and Pinion
Taxonomy C Rear, Rear, Rear
Taxonomy D 4.56, 4.56, 4.56
Where to buy

Vehicle Applications

  • 1971 – 1972 Buick Centurion

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Buick Electra

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 Buick Estate Wagon

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1970 – 1972 Buick GS

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1968 – 1969 Buick GS 350

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1968 – 1969 Buick GS 400

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1970 – 1972 Buick GS 455

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1967 Buick Gran Sport

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 Buick LeSabre

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 Buick Skylark

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1969 Buick Special

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1964 – 1972 Buick Sportwagon

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1970 Chevrolet Bel Air

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1967 – 1972 Chevrolet Camaro

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1966 – 1972 Chevrolet Caprice

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1964 – 1973 Chevrolet Chevelle

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1968 Chevrolet Chevy II

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Chevrolet El Camino

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Chevrolet Impala

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1967 Chevrolet Malibu

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1970 – 1972 Chevrolet Monte Carlo

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1969 – 1972 Chevrolet Nova

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1970 – 1972 Ford Royal

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 GMC Sprint

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 Oldsmobile 442

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Oldsmobile 98

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 Oldsmobile Cutlass

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 Oldsmobile Cutlass Supreme

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1967 – 1968 Oldsmobile Delmont 88

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Oldsmobile Delta 88

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Oldsmobile F85

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1966 Oldsmobile Jetstar 88

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 Oldsmobile Jetstar I

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1966 Oldsmobile Starfire

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1967 – 1972 Oldsmobile Vista Cruiser

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1971 Pontiac Acadian

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1969 Pontiac Beaumont

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Pontiac Bonneville

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Pontiac Catalina

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1967 – 1970 Pontiac Executive

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1967 – 1968 Pontiac Firebird

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1969 Pontiac Firebird
  • 1969 – 1970 Pontiac Firebird

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1970 – 1971 Pontiac Firebird
  • 1971 Pontiac Firebird

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1972 Pontiac Firebird

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Pontiac GTO

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1970 – 1972 Pontiac Grand Prix

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 Pontiac Grand Safari

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1971 – 1972 Pontiac Grandville

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Pontiac Laurentian

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Pontiac LeMans

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1972 Pontiac Parisienne

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1965 – 1970 Pontiac Strato-Chief

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier
  • 1970 Pontiac Tempest

    Application notes:

    • For GM 8.875" (12 Bolt)
    • 4.56 Ratio
    • Requires a 4.10 and Numerically Higher Ratio Carrier

Installation

Installation Instructions
⚠ WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov