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Motive Gear Performance Ring and Pinion Sets G80370 GM 7.75 in. IRS 3.70 Gears Gear, Pinion, 3.70:1 Ratio, IRS, Pontiac, Set

SKU: MGRG80370

Ring and Pinion Gears

Motive Gear Performance Ring and Pinion Sets G80370 GM 7.75 in. IRS 3.70 Gears Gear, Pinion, 3.70:1 Ratio, IRS, Pontiac, Set

SKU: MGRG80370

Ring and Pinion Gears
A$1,144.45
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicles. Their gear sets are made from first-run steel, they never use recycled metal. This allows Motive Gear Performance ring and pinions to handle the extreme torque from high-horsepower racing engines. Extensive engineering, computer-controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios, makes Motive Gear Performance ring and pinions the clear winner! Engineered to the highest standards, every Motive Gear Performance product goes through rigid quality control processes in their in-house lab.

Motive Gear Performance also offers a lightweight alternative to standard ring and pinion gear sets. Their AX Series ring and pinions are designed to increase horsepower and efficiency by removing rotating weight. Professional race teams have used custom-lightened drivetrain parts for years, resulting in faster times and more wins. The AX Series gears from Motive are lightened during the manufacturing process; this results in gear sets that have been engineered, not modified. Computer-controlled heat treatment, index tooth spacing, and CNC machining all go into AX Series performance gear sets. Motive Gear Performance: What the pros run!

Part Type

Ring and Pinion Gears

Data: v4.2 - Upd: 2026-09-29 08:54:42

Specifications

Product Attributes - Brand
Motive Gear
Product Attributes - Manufacturer's Part Number
G80370
Product Attributes - Part Type
Ring and Pinion Gears
Product Attributes - Product Line
Motive Gear Performance Ring and Pinion Sets
Product Attributes - UPC
698231948460
Product Attributes - Differential Case Design Type
GM 7.75 in. IRS
Product Attributes - Ring and Pinion Ratio
3.70:1
Product Attributes - Cover Bolts
9
Product Attributes - Ring Gear Bolts
8
Product Attributes - Pinion Spline Count
27
Product Attributes - Ring Gear Rotation
Standard
Product Attributes - Ring Gear Diameter (in.)
7.750 in.
Product Attributes - Installation Kit Included
No
Product Attributes - Cover Gasket Included
No
Product Attributes - Pinion Shims Included
No
Product Attributes - Carrier Shims Included
No
Product Attributes - Crush Sleeve Included
No
Product Attributes - Pinion Seal Included
No
Product Attributes - Pinion Nut Included
No
Product Attributes - Ring Gear Bolts Included
No
Product Attributes - Head Bearing Included
No
Product Attributes - Tail Bearing Included
No
Product Attributes - Carrier Bearings Included
No
Product Attributes - Axle Seals Included
No
Product Attributes - Axle Bearings Included
No
Product Attributes - Differential Cover Included
No
Product Attributes - Differential Oil Included
No
Product Attributes - Friction Modifier Included
No
Product Attributes - Installation DVD Included
No
Product Attributes - Quantity
Sold as a set.
Product Attributes - Notes
Fits 7.75 in. IRS axles found in 2004-06 Pontiac GTO.

Reference Information

Brand Name/s Motive Gear
StreetFX SKU mgrG80370
SFX Item ID 4797536
Supplier Item Code 4797536
Manufacturer SKU G80370
Manufacturer UPC 698231948460
Alternative References MOTG80370

Compatibility

Application Data
  • MakePONTIAC
    ModelGTO
    SubmodelBASE
    Beginning Year2004
    Ending Year2004
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Axle LocationRear
    Liter5.7
    CID350
    Engine VIN CodeG
  • MakePONTIAC
    ModelGTO
    SubmodelBASE
    Beginning Year2005
    Ending Year2006
    Engine TypeV8
    Engine Size6.0L/364
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Axle LocationRear
    Liter6.0
    CID364
    CC5967
    Engine VIN CodeU

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