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Richmond Gear GM85456

Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 4.56

Richmond Gear GM85456
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836-GM85456

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Richmond Gear GM85456 Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 4.56 $164.95
Excel Ring & Pinion Gear Set
GM 8.5" & 8.625" 10 Bolt
  • Ratio: 4.56
  • Teeth: 41-9

  • Richmond Gear GM85456 Details

    8.5 & 8.625" GM

  • Fits Carriers 2.73 and Higher
  • 8.50 & 8.625" Diameter Ring Gear
  • 1.626" Pinion Diameter
  • 30 Spline Pinion
  • 10 Hole Oval Cover

    Applications:

  • 1977-96 Buick Full Size
  • 1977-91 Blazer (K Series Front)
  • 1973-77 Apollo, Regal, Century
  • 1971-74 Biscayne
  • 1984-87 Grand National
  • 1971-75, 77-79 Skylark, GS
  • 1970-76 Chevelle
  • 1971-96 Chevy Full Size
  • 1970-79 Chevy II, Nova
  • 1971-81 Camaro, Firebird, TA
  • 1971-77 Cutlass
  • 1976-78 Electra
  • 1973-77 Gran Sport
  • 1970-81 GTO, Firebird
  • 1973-74 LeSabre
  • 1971-89 Olds Full Size
  • 1985-88 Olds, Hurst
  • 1971-89 Pontiac Full Size
  • 1985-88 Hurst Olds
  • 1973-75, 77-79 Omega
  • 1971-77 Grand Prix, Lemans
  • 1971-74, 96-96 Roadmaster
  • 1971-77 Ventura, Phoenix
  • 1972-81 Z28
  • 1970-76 Olds F65
  • 1980-02 C10, C15 (Rear)
  • 1980-02 K10, K15 (Rear)
  • 1977-87 K10, K20 (Front)
  • 1980-96 Suburban (Rear)
  • 1977-91 Suburban (Front)
  • 1973-76 El Camino
  • 1970-96 G10, G20 Van

  • Specifications:

    Gear Ratio
    4.56
    Axle Type
    GM 8.5 in.
    Position
    Front Or Rear
    Differential Case Design Type
    GM 8.5
    Ring Gear Tooth Quantity
    41
    Cover Bolt Quantity
    10
    Differential Case Design Type
    GM 8.625
    Ring Gear Diameter
    8.5
    Ring Gear Bolt Quantity
    10
    Pinion Shaft Diameter
    1.626
    Pinion Spline Count
    30
    Ring Gear Rotation
    Standard
    Pinion Gear Tooth Quantity
    9
    Ring Gear Material
    8620 Steel
    Differential Carrier Break
    2.73 and Higher
    Carrier Series
    3
    Cover Bolts
    10
    Installation Kit Included
    No
    Pinion Gear Teeth
    9
    Pinion Shaft Diameter (in.)
    1.626
    Pinion Spline Count
    30
    Quantity
    Sold as a set
    Ring and Pinion Ratio
    4.56:1
    Ring Gear Bolts
    10
    Ring Gear Diameter (in.)
    8.5
    Ring Gear Rotation
    Standard
    Ring Gear Teeth
    41
    Manufacturer's Part Number:
    GM85456

    Richmond Gear Excel Ring and Pinion Sets are manufactured to tight tolerances. The gear design, tooling, steel selection, heat treat recipes and quality requirements are specified by Richmond. Designed to withstand the abuse of high performance and daily driving.

    Choose The Gear Ratio That Is Best For Your Vehicle
    .

    Does Richmond Gear GM85456 fit your vehicle?

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    • EngineType: V8 ( 5.3 L / 325 )

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    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1986 GMC K1500 PICKUP

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    • SubModel: ALL

    1970 BUICK SKYLARK

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    • SubModel: BASE
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    • EngineType: V8 ( 7.4 L / 454 )

    1982 GMC K2500 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

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    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 PONTIAC LEMANS

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SPORT
    • Engine Vin: B
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005 CHEVROLET TRAILBLAZER

    • EngineType: ALL
    • SubModel: LT

    1986 GMC K1500 PICKUP

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1975 BUICK SKYLARK

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

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    1975-1976 CHEVROLET IMPALA

    • Liter: 6.6
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    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978 BUICK SKYLARK

    • EngineType: ALL
    • SubModel: CUSTOM

    1990-1993 GMC G15/G1500 VAN

    • Liter: 5.0
    • SubModel: RALLY
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 OLDSMOBILE 98

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: REGENCY
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1980 GMC K2500 SUBURBAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1976 CHEVROLET MALIBU

    • EngineType: ALL
    • SubModel: CLASSIC LANDAU

    1977-1978 CHEVROLET K20 PICKUP

    • EngineType: ALL
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    1971 GMC SPRINT

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1976 CHEVROLET MONTE CARLO

    • Liter: 6.6
    • SubModel: S
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976-1977 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1988 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1976 BUICK ELECTRA

    • CC: 7456
    • Liter: 7.5
    • SubModel: 225
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1971-1972 PONTIAC LAURENTIAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

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    • SubModel: NORTH FACE

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    • EngineType: ALL
    • SubModel: SIERRA SLE

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    • EngineType: ALL
    • SubModel: ALL

    1972-1974 OLDSMOBILE VISTA CRUISER

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC LEMANS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    2014 GMC SIERRA 1500

    • EngineType: ALL
    • SubModel: DENALI

    1975 BUICK SKYLARK

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    2012-2014 CHEVROLET TAHOE

    • CC: 5328
    • Liter: 5.3
    • Aspiration: N
    • SubModel: LS
    • Engine Vin: 0
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    1977-1978 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1981-1982 OLDSMOBILE DELTA 88

    • Liter: 4.4
    • SubModel: ROYALE
    • CUI: 267
    • EngineType: V8 ( 4.4 L / 267 )

    1988-1989 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1985 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1973 CHEVROLET EL CAMINO

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: ESPRIT
    • Engine Vin: T
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971-1974 PONTIAC FIREBIRD

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1985 GMC C1500 PICKUP

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    2013 CHEVROLET SUBURBAN 1500

    • CC: 5328
    • Liter: 5.3
    • SubModel: LT
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    1980 CHEVROLET IMPALA

    • CC: 5031
    • Liter: 5.0
    • SubModel: SPORT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1976 BUICK SKYLARK

    • Liter: 3.8
    • SubModel: SR
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1974 OLDSMOBILE 98

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 OLDSMOBILE OMEGA

    • Liter: 5.7
    • SubModel: SALON
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 PONTIAC CATALINA

    • EngineType: ALL
    • SubModel: SAFARI

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    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1981 CHEVROLET BLAZER K5

    • EngineType: ALL
    • SubModel: DELUXE

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    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: GTO
    • Engine Vin: B
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1995 GMC G25/G2500 VAN

    • EngineType: ALL
    • SubModel: RALLY STX

    1990-1992 OLDSMOBILE CUSTOM CRUISER

    • EngineType: ALL
    • SubModel: ALL

    1983 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1972-1974 CHEVROLET BEL AIR

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: T
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1994-1995 CHEVROLET G20 VAN

    • Liter: 6.5
    • SubModel: SPORTVAN
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1975 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2001-2003 CHEVROLET SILVERADO 1500 HD

    • EngineType: ALL
    • SubModel: LS

    1980 GMC K2500 SUBURBAN

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: ESTATE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1981 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: DELUXE

    1974 GMC SPRINT

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: DELUXE

    1973 CHEVROLET MONTE CARLO

    • CC: 7441
    • Liter: 7.4
    • SubModel: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1974 CHEVROLET MALIBU

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 PONTIAC LEMANS

    • CC: 7457
    • Liter: 7.5
    • SubModel: SPORT
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1968-1969 CHEVROLET CAPRICE

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979-1980 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1989-1993 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA SLX

    1976 PONTIAC LEMANS

    • Liter: 4.3
    • SubModel: SPORT
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1972 PONTIAC BONNEVILLE

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1980 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: PARK AVENUE

    1971-1972 PONTIAC LAURENTIAN

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET CAPRICE

    • CC: 6556
    • Liter: 6.6
    • SubModel: CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979 BUICK SKYLARK

    • EngineType: ALL
    • SubModel: ALL

    1974 GMC SPRINT

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1972-1973 PONTIAC GRAND PRIX

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 PONTIAC GRAND PRIX

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1989-1991 CHEVROLET V1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1977-1978 GMC K25 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1972 PONTIAC CATALINA

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1983 GMC C1500 SUBURBAN

    • EngineType: ALL
    • SubModel: BASE

    1970-1971 OLDSMOBILE VISTA CRUISER

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 OLDSMOBILE VISTA CRUISER

    • EngineType: ALL
    • SubModel: ALL

    1976-1977 PONTIAC LEMANS

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995-2004 GMC SONOMA

    • EngineType: ALL
    • SubModel: SLS

    1978 BUICK SKYLARK

    • EngineType: ALL
    • SubModel: S
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