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Richmond Gear Excel Ring & Pinion Gear Set GM 8.75" 12 Bolt Truck Ratio: 3.42

Richmond Gear 12BT342
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836-12BT342

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Richmond Gear Excel Ring & Pinion Gear Set GM 8.75" 12 Bolt Truck Ratio: 3.42 $164.95
Excel Ring & Pinion Gear Set
GM 8.75" 12 Bolt Truck
  • Ratio: 3.42
  • Teeth: 41-12
  • Series 3

  • Richmond Gear 12BT342 Details

    8.875" GM Truck

  • 3 Series Fits 3.40 and Lower Carriers. 4 Series Fits 3.73 and Higher Carriers.
  • 8.875" Diameter Ring Gear
  • 1.438" Pinion Diameter
  • 30 Spline Pinion
  • 12 Hole Irregular Cover

    Applications:

  • 1964-82 Blazer
  • 1964-82 C10
  • 1964-82 C15
  • 1964-82 K10 (Rear)
  • 1964-82 K20 (Rear)
  • 1964-81 G10, G15
  • 1969-81 G20, G25

  • Specifications:

    Gear Ratio
    3.42
    Axle Type
    GM 8.875 in.
    Position
    Rear
    Differential Case Design Type
    GM 8.875
    Ring Gear Tooth Quantity
    41
    Cover Bolt Quantity
    12
    Ring Gear Diameter
    8.875
    Ring Gear Bolt Quantity
    12
    Pinion Shaft Diameter
    1.438
    Pinion Spline Count
    30
    Ring Gear Rotation
    Standard
    Pinion Gear Tooth Quantity
    12
    Ring Gear Material
    8620 Steel
    Differential Carrier Break
    2.76 to 3.42
    Carrier Series
    3
    Cover Bolts
    12
    Installation Kit Included
    No
    Pinion Gear Teeth
    12
    Pinion Shaft Diameter (in.)
    1.438
    Pinion Spline Count
    30
    Quantity
    Sold as a set
    Ring and Pinion Ratio
    3.42:1
    Ring Gear Bolts
    12
    Ring Gear Diameter (in.)
    8.875
    Ring Gear Rotation
    Standard
    Ring Gear Teeth
    41
    Manufacturer's Part Number:
    12BT342

    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 12BT342 fit your vehicle?

    Narrow Results

    1981 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1978 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: BIG TEN

    1981 CHEVROLET G10 VAN

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BONAVENTURE
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1971-1972 GMC JIMMY

    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979-1980 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1975 CHEVROLET K5 BLAZER

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1980 CHEVROLET C10 PICKUP

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

    1979-1980 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: HEAVY HALF

    1979-1980 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1969 GMC K15/K1500 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V6 ( 5.0 L / 305 )

    1971-1972 CHEVROLET G10 VAN

    • Liter: 5.0
    • SubModel: SPORTVAN
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 GMC JIMMY

    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1976 GMC C15 SUBURBAN

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

    1975 GMC C15 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1969 CHEVROLET C10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1981-1983 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM

    1981 CHEVROLET C10 PICKUP

    • CC: 4786
    • Liter: 4.8
    • SubModel: CUSTOM
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1967-1968 GMC K1500 PICKUP

    • CC: 5753
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 351
    • EngineType: V6 ( 5.7 L / 351 )

    1976 GMC C1500 PICKUP

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

    1979-1981 GMC C1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1984 GMC G25/G2500 VAN

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

    1982-1983 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1974 GMC K1500 PICKUP

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1967-1968 GMC K15/K1500 SUBURBAN

    • CC: 5753
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 351
    • EngineType: V6 ( 5.7 L / 351 )

    1972 CHEVROLET G10 VAN

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

    1969 CHEVROLET G20 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1970-1972 GMC JIMMY

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1976 GMC C15 SUBURBAN

    • EngineType: ALL
    • SubModel: HIGH SIERRA

    1971-1972 CHEVROLET G10 VAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 GMC C15/C1500 SUBURBAN

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

    1979-1980 GMC G25/G2500 VAN

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

    1971 CHEVROLET C10 PICKUP

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969-1971 CHEVROLET K10 SUBURBAN

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

    1982 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1976 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1979 GMC K1500 PICKUP

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

    1976 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1968-1969 GMC C1500 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979 GMC G15/G1500 VAN

    • Liter: 4.1
    • SubModel: RALLY
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979-1980 GMC G25/G2500 VAN

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

    1976 GMC K1500 PICKUP

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

    1973 GMC JIMMY

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

    1972 CHEVROLET C10 SUBURBAN

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

    1971-1972 GMC K1500 PICKUP

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

    1969-1970 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1981 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: DELUXE

    1971 CHEVROLET G10 VAN

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

    1975-1978 GMC G25/G2500 VAN

    • EngineType: ALL
    • SubModel: VANDURA

    1973 CHEVROLET G20 VAN

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

    1972 GMC JIMMY

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1968 GMC C15/C1500 SUBURBAN

    • CC: 5753
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 351
    • EngineType: V6 ( 5.7 L / 351 )

    1979-1980 GMC G25/G2500 VAN

    • Liter: 4.1
    • SubModel: VANDURA
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1970 CHEVROLET G20 VAN

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

    1967 CHEVROLET G20 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1978-1981 CHEVROLET G20 VAN

    • EngineType: ALL
    • SubModel: CHEVY VAN

    1979-1980 GMC K1500 SUBURBAN

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

    1968 GMC C15/C1500 SUBURBAN

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1970-1972 GMC JIMMY

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1976 GMC K1500 PICKUP

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

    1974 CHEVROLET C10 PICKUP

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

    1969-1971 CHEVROLET K10 SUBURBAN

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

    1972 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1971 CHEVROLET G20 VAN

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SPORTVAN
    • Engine Vin: B
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1973 GMC K1500 PICKUP

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

    1969 CHEVROLET BLAZER

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1970 CHEVROLET BLAZER

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET BLAZER

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

    1971 CHEVROLET C10 PICKUP

    • CC: 6588
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1971 CHEVROLET G20 VAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: SPORTVAN
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1967 GMC K15/K1500 SUBURBAN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1967 CHEVROLET K10 SUBURBAN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1971 CHEVROLET G10 VAN

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

    1972 CHEVROLET TO BE REOMVED

    • EngineType: ALL
    • SubModel: ALL

    1973-1974 CHEVROLET K10 SUBURBAN

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

    1967-1968 GMC C1500 PICKUP

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1974 GMC G15/G1500 VAN

    • Liter: 4.1
    • SubModel: VANDURA
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1975-1978 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: BEAUVILLE

    1967 GMC K1500 PICKUP

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

    1973 GMC JIMMY

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

    1963-1966 GMC SUBURBAN

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1979 GMC JIMMY

    • EngineType: ALL
    • SubModel: SIERRA CLASSIC

    1967 GMC K15/K1500 SUBURBAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1967-1968 CHEVROLET K10 PICKUP

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1972 CHEVROLET C10 SUBURBAN

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1972 GMC K1500 PICKUP

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

    1975 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1974 GMC C15/C1500 SUBURBAN

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

    1977-1978 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1975 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1972 CHEVROLET G20 VAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1972 CHEVROLET K10 PICKUP

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: E
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET BLAZER

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

    1971 CHEVROLET G20 VAN

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1976 GMC K15 SUBURBAN

    • EngineType: ALL
    • SubModel: HIGH SIERRA

    1972 GMC C15/C1500 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET K10 PICKUP

    • CC: 4801
    • Liter: 4.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1975-1978 GMC JIMMY

    • EngineType: ALL
    • SubModel: BASE

    1969 CHEVROLET G20 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: SPORTVAN
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1967-1968 GMC C1500 PICKUP

    • CC: 5012
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V6 ( 5.0 L / 305 )
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations