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MOTIVE GEARPART NUMBER: 683-G80370

Ring & Pinion Gears GM 7.75" IRS 9-Bolt

Name: Ring & Pinion Gears GM 7.75" IRS 9-Bolt
Brand: MOTIVE GEAR
SKU: 683-G80370
Price: 421.99 USD
Availability: InStock

^$421⁹⁹

Ships on 09/15/2026

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GM 7.75" IRS Style 9-Bolt

Ring & Pinion Gears

GM 7.75" IRS 9-Bolt

Ratio: 3.70

Diameter: 7.75" IRS
Pinion Diameter: 1.376" 27 Splines
8620 Steel
Heat Treated
2004-2006 Pontiac GTO

Part TypeRing and Pinion

BrandMOTIVE GEAR

Package Width16.0

Weight16.0 PG

Part CategoryPerformance Parts

Ring Gear RotationStandard

Ring Gear Material8620 Steel

Ring Gear Diameter7.75 in (196.9 mm)

Ring Gear Tooth Quantity37

Pinion Shaft Diameter1.376 in (35 mm)

Pinion Gear Tooth Quantity10

Axle TypeGM 7.75 in.

Ring Gear Bolt Quantity8

Part FitmentSemi Universal

Cover Bolt Quantity9

Pinion Spline Count27

Vendor Part NumberG80370

Package Qty1

Package TypeEA

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