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View All Richmond Gear GM 12-Bolt Ring & Pinion Sets
Richmond Gear

Richmond Gear GM 12 Bolt Ring & Pinion Gear Set Ratio: 3.73

Richmond Gear 49-0280-1
Representative Image
Product images may differ from actual product appearance.
Consider JEGS Branded
JEGS 60015 - GM 12-Bolt Truck Ring & Pinion 8.875" Diameter Ring Gear
Only $159.94
Get Details
Why JEGS?

836-49-0280-1

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Richmond Gear GM 12 Bolt Ring & Pinion Gear Set Ratio: 3.73 $214.67
GM 12 Bolt Ring & Pinion Gear Set
  • Ratio: 3.73
  • Teeth: 41-11
  • Series: 4

    • Richmond Gear 49-0280-1 Details

    12-Bolt 8.875" Truck

  • 3 Series Fits 3.40 and Numerically Lower Ratio Carrier, 4 Series Fits 3.73 and Numerically Higher Carrier.
  • 30 Spline 1.438" Diameter Pinion.

    .

    • Specifications:

    Gear Ratio
    3.73
    Axle Type
    GM 12 Bolt
    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
    11
    Ring Gear Material
    8620 Steel
    Differential Carrier Break
    3.73 and Higher
    Carrier Series
    4
    Cover Bolts
    12
    Installation Kit Included
    No
    Pinion Gear Teeth
    11
    Pinion Shaft Diameter (in.)
    1.438
    Pinion Spline Count
    30
    Quantity
    Sold as a set
    Ring and Pinion Ratio
    3.73:1
    Ring Gear Bolts
    12
    Ring Gear Diameter (in.)
    8.875
    Ring Gear Rotation
    Standard
    Ring Gear Teeth
    41
    Manufacturer's Part Number:
    49-0280-1

    Richmond Gear is the leading manufacturer of professional quality, high performance ring and pinion sets. The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. 12 Bolt Street Gears are designed to withstand the rigors of everyday driving, and a weekend at the track. Gears available for nearly all popular domestic applications.

    Choose The Gear Ratio That Is Best For Your Vehicle    .

    Does Richmond Gear 49-0280-1 fit your vehicle?

    Narrow Results

    1979-1980 GMC K1500 PICKUP

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

    1973 GMC JIMMY

    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 GMC C1500 PICKUP

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

    1976 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1966 GMC SUBURBAN

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

    1968 GMC K15/K1500 SUBURBAN

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

    1976 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1973-1974 CHEVROLET K10 PICKUP

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

    1969 CHEVROLET G20 VAN

    • CC: 3769
    • Liter: 3.8
    • SubModel: SPORTVAN
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1981 CHEVROLET C10 PICKUP

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

    1974 GMC C15/C1500 SUBURBAN

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

    1976 GMC C15 SUBURBAN

    • EngineType: ALL
    • SubModel: HIGH SIERRA

    1970 CHEVROLET C10 PICKUP

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

    1970 CHEVROLET BLAZER

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

    1968-1969 GMC C15/C1500 SUBURBAN

    • CC: 5012
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V6 ( 5.0 L / 305 )

    1972 CHEVROLET G20 VAN

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

    1981 CHEVROLET C10 PICKUP

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

    1975-1978 GMC JIMMY

    • EngineType: ALL
    • SubModel: BASE

    1979-1980 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM

    1969-1970 CHEVROLET K10 PICKUP

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

    1973 CHEVROLET K10 PICKUP

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970-1971 CHEVROLET BLAZER

    • CC: 4097
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979 CHEVROLET C10 PICKUP

    • EngineType: ALL
    • SubModel: BIG TEN

    1976 CHEVROLET G20 VAN

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

    1976-1978 CHEVROLET K5 BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1967-1968 GMC K15/K1500 SUBURBAN

    • CC: 5012
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V6 ( 5.0 L / 305 )

    1969 CHEVROLET C10 PICKUP

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

    1970-1972 CHEVROLET K10 PICKUP

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

    1986 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1974 CHEVROLET BLAZER

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

    1972 GMC JIMMY

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

    1973-1974 CHEVROLET G20 VAN

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

    1972 CHEVROLET BLAZER

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

    1969 GMC C15/C1500 SUBURBAN

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1979 GMC JIMMY

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

    1966-1968 CHEVROLET K10 PICKUP

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1976 CHEVROLET G20 VAN

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

    1971 CHEVROLET G10 VAN

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

    1979-1981 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: BEAUVILLE

    1976 GMC C15 SUBURBAN

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

    1972 GMC C15/C1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1970-1972 GMC K15/K1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1981 GMC C1500 PICKUP

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

    1975-1978 GMC JIMMY

    • EngineType: ALL
    • SubModel: ALL

    1974-1978 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: RALLY

    1971 CHEVROLET G20 VAN

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

    1977-1978 GMC C15 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1975-1978 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1979-1980 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1971 CHEVROLET G20 VAN

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

    1972 CHEVROLET K10 PICKUP

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

    1971-1972 GMC JIMMY

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

    1971 CHEVROLET G20 VAN

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

    1981 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: DELUXE

    1970-1972 GMC JIMMY

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

    1973 CHEVROLET G20 VAN

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

    1971 CHEVROLET G20 VAN

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

    1971 CHEVROLET BLAZER

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

    1967 CHEVROLET K10 SUBURBAN

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1981 CHEVROLET G10 VAN

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

    1979-1980 GMC G25/G2500 VAN

    • Liter: 5.7
    • SubModel: VANDURA
    • 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 )

    1979-1980 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: HEAVY HALF

    1971 CHEVROLET C10 PICKUP

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

    1979-1980 GMC K1500 PICKUP

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

    1968 CHEVROLET C10 PICKUP

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

    1970 CHEVROLET C10 PICKUP

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

    1969 CHEVROLET K10 PICKUP

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

    1971-1972 CHEVROLET G10 VAN

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

    1967 GMC G15/G1500 VAN

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

    1967 CHEVROLET K10 SUBURBAN

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

    1967 CHEVROLET K10 PICKUP

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1978-1981 CHEVROLET G20 VAN

    • EngineType: ALL
    • SubModel: CHEVY VAN

    1980 CHEVROLET C10 PICKUP

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

    1979-1980 GMC G25/G2500 VAN

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

    1969 GMC K15/K1500 SUBURBAN

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

    1976 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1976 CHEVROLET G20 VAN

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

    1971 CHEVROLET BLAZER

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

    1974-1978 GMC G25/G2500 VAN

    • EngineType: ALL
    • SubModel: ALL

    1972 CHEVROLET G20 VAN

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

    1973 CHEVROLET K10 PICKUP

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

    1969 CHEVROLET C10 PICKUP

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

    1963 GMC SUBURBAN

    • Liter: 2.5
    • SubModel: BASE
    • CUI: 153
    • EngineType: L4 ( 2.5 L / 153 )

    1976 GMC K15 SUBURBAN

    • EngineType: ALL
    • SubModel: HIGH SIERRA

    1980 CHEVROLET C10 PICKUP

    • Liter: 4.8
    • SubModel: BIG TEN
    • 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 )

    1971 CHEVROLET K10 PICKUP

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

    1981 CHEVROLET BLAZER K5

    • EngineType: ALL
    • SubModel: DELUXE

    1981 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1972 CHEVROLET C10 PICKUP

    • CC: 4098
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: D
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979-1980 GMC K1500 SUBURBAN

    • EngineType: ALL
    • SubModel: SIERRA GRANDE

    1979 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: RALLY STX

    1979-1980 GMC C1500 PICKUP

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

    1976 CHEVROLET G10 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BEAUVILLE
    • 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 )

    1979-1980 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA CLASSIC

    1974 CHEVROLET G10 VAN

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

    1967-1973 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: ALL

    1979-1981 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA CLASSIC
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations