Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 3.73

Vehicle Info Needed

RICHMOND GEARPART NUMBER: 836-GM85373

Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 3.73

Name: Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 10 Bolt Ratio: 3.73
Brand: RICHMOND GEAR
SKU: 836-GM85373
Price: 164.69 USD
Availability: InStock

^$164⁶⁹$182.99You Save$18.30

Ships on Sep 14, 2026

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555-60031

GM 10-Bolt Ring & Pinion 8.5" Diameter Ring Gear (Corporate/New Style) [3.73 Ratio]

^$195⁹⁹

8.500 & 8.625 in. GM

Fits Carriers 2.73 and Higher

1.626 in. Pinion Diameter

30-Spline Pinion

Ratio: 3.73
Teeth: 41-11

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

Part TypeRing and Pinion

BrandRICHMOND GEAR

Package Height5.7

Package Width11.3

Package Length15.0

Weight18.13 PG

Part CategoryPerformance Parts

Ring Gear RotationStandard

Pinion Gear Teeth11

Ring Gear Tooth Quantity41

Differential Case Design TypeGM 8.5

PositionFront Or Rear

Carrier Series3

QuantitySold as a set

Differential Carrier Break2.73 and Higher

Pinion Spline Count30

Ring Gear Material8620 Steel

Ring Gear Diameter8.5

Ring And Pinion Ratio3.73:1

Pinion Shaft Diameter1.626

Installation Kit IncludedNo

Pinion Gear Tooth Quantity11

Axle TypeGM 8.5 in.

Gear Ratio3.73

Ring Gear Teeth41

Ring Gear Bolt Quantity10

Part FitmentSemi Universal

Vendor Part NumberGM85373

Package Qty1

Package TypeEA

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