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GM Ring & Pinion Gear Set Ratio: 3.42
InfoVehicle Info Needed
RICHMOND GEARPART NUMBER: 836-49-0278-1

GM Ring & Pinion Gear Set Ratio: 3.42

$32129$356.99You Save$35.70
ShippingShips on Sep 03, 2026
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$12230
GM 10-Bolt Ring & Pinion 8.5" Diameter Ring Gear (Corporate/New Style)

555-60030

GM 10-Bolt Ring & Pinion 8.5" Diameter Ring Gear (Corporate/New Style)

$19899

GM 8.5"
  • Fits 2.73 and Higher Carrier
  • Pinion Diameter: 1.626"
  • 30 Spline
      • GM Ring & Pinion Gear Set
    • Ratio: 3.42
    • Teeth: 41-12

    • Front: Use Installation Kit #836-83-1020-1
    • Rear: Use Installation Kit #836-83-1021-1
    • 1973-87 Truck: Use Installation Kit #836-83-1021-M or #836-83-1021-TE
    • Does not work with pinion-mounted ABS sensor in 1990-96 Impala/Impala SS/Caprice
    • When replacing a stock 2.56 or lower ratio, the carrier must be replaced with a 2.73 or higher carrier
    Part TypeRing and Pinion
    BrandRICHMOND GEAR
    Package Height5.3
    Package Width11.1
    Package Length15.1
    Weight17.51 PG
    Part CategoryPerformance Parts
    Ring Gear RotationStandard
    Pinion Gear Teeth12
    Ring Gear Tooth Quantity41
    Carrier Series3
    QuantitySold as a set
    Differential Carrier Break2.76 and Higher
    Cover Bolt Quantity10
    Pinion Spline Count30
    Ring Gear Material8620 Steel
    Ring Gear Diameter8.5 in (215.9 mm)
    Ring And Pinion Ratio3.42:1
    Pinion Shaft Diameter1.626 in (41.3 mm)
    Installation Kit IncludedNo
    Pinion Gear Tooth Quantity12
    Axle TypeGM 8.5 in.
    Ring Gear Bolts10
    Cover Bolts10
    Ring Gear Teeth41
    Ring Gear Bolt Quantity10
    Part FitmentSemi Universal
    Vendor Part Number49-0278-1
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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