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GM 12 Bolt Ring & Pinion Gear Set Ratio: 3.55
InfoVehicle Info Needed
RICHMOND GEARPART NUMBER: 836-49-0095-1

GM 12 Bolt Ring & Pinion Gear Set Ratio: 3.55

$34077
ShippingShips on 11/23/2026
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$14078
GM 12-Bolt Car Ring & Pinion 8.875" Diameter Ring Gear

555-60081

GM 12-Bolt Car Ring & Pinion 8.875" Diameter Ring Gear

$19999

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12-Bolt 8.875" Passenger Car
  • 3 Series Fits 3.07 to 3.73 Ratio Carrier, 4 Series Fits 3.90 and Numerically Higher Carrier.
  • 30 Spline, 1.625 Diameter Pinion.
      • GM 12 Bolt Ring & Pinion Gear Set
    • Ratio: 3.55
    • Teeth: 39-11
    • Series: 3

    • 1965-72 Bel Air, Caprice, Impala, Chevelle, El Camino, Chevy II, 1967-72 Camaro, 1970-72 Nova, GTO, Firebird, 68-69 Olds F-85
      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      .
    Part TypeRing and Pinion
    Product LineRichmond Gear GM 12-Bolt Ring & Pinion Sets
    BrandRICHMOND GEAR
    Package Height5.3
    Package Width11.4
    Package Length15.0
    Weight16.83 PG
    Part CategoryPerformance Parts
    Ring Gear RotationStandard
    Pinion Gear Teeth11
    Ring Gear Tooth Quantity39
    Carrier Series3
    QuantitySold as a set
    Differential Carrier Break3.07 to 3.73
    Cover Bolt Quantity12
    Pinion Spline Count30
    Ring Gear Material8620 Steel
    Ring Gear Diameter8.875 in (225.4 mm)
    Ring And Pinion Ratio3.55:1
    Pinion Shaft Diameter1.625 in (41.3 mm)
    Installation Kit IncludedNo
    Pinion Gear Tooth Quantity11
    Axle TypeGM 12 Bolt
    Ring Gear Bolts12
    Cover Bolts12
    Ring Gear Teeth39
    Ring Gear Bolt Quantity12
    Part FitmentSemi Universal
    Vendor Part Number49-0095-1
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

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    Some parts are not legal for use in California or other states with similar laws / regulations
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