Ring & Pinion Gears 8.875" 12-Bolt Ratio: 3.73

Vehicle Info Needed

MOTIVE GEARPART NUMBER: 683-GM12-373

Ring & Pinion Gears 8.875" 12-Bolt Ratio: 3.73

Name: Ring & Pinion Gears 8.875" 12-Bolt Ratio: 3.73
Brand: MOTIVE GEAR
SKU: 683-GM12-373
Price: 236.84 USD
Availability: InStock

^$236⁸⁴

Ships on Sep 23, 2026

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^$7⁸⁵

555-60015

GM 12-Bolt Truck Ring & Pinion 8.875" Diameter Ring Gear [3.73 Ratio]

^$228⁹⁹

GM 8.875" 12-Bolt

Ratio: 3.73
Teeth: 41-11
Ring Gear Diameter: GM 8.875"
Pinion Shaft Diameter: 1.438"
Cover Bolts: 12
Ring Gear Bolts: 12
Applications:
1964-1981 GM 1/2-Ton Pickup
1969-1981 GM 3/4-Ton Pickup
Note: Fits 3.73 & higher case.

Part TypeRing and Pinion

BrandMOTIVE GEAR

Package Height5.3

Package Width11.4

Package Length15.3

Weight14.29 PG

Part CategoryPerformance Parts

Ring Gear RotationStandard

Ring Gear Tooth Quantity41

Differential Carrier Break3.73 and Higher

Cover Bolt Quantity12

Pinion Spline Count30

Ring Gear Material8620 Steel

Ring Gear Diameter8.875 in (225.4 mm)

Pinion Shaft Diameter1.438 in (36.5 mm)

Pinion Gear Tooth Quantity11

Axle TypeGM 8.875 in.

Ring Gear Bolt Quantity12

Part FitmentSemi Universal

Vendor Part NumberGM12-373

Package Qty1

Package TypeEA

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