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Yukon Gear & Axle Ring and Pinion Sets YG GM12P-308 Gears, 3.08:1 Ratio, 8.875 in. Gear, GM 8.875 in. Passenger Car, Set

SKU: YUKGM12P-308

Ring and Pinion Gears

Yukon Gear & Axle Ring and Pinion Sets YG GM12P-308 Gears, 3.08:1 Ratio, 8.875 in. Gear, GM 8.875 in. Passenger Car, Set

SKU: YUKGM12P-308

Ring and Pinion Gears
A$1,265.19
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Additional Information

Yukon Gear/Axle high performance ring/pinions set the standard for quality. Yukon designed the gear tooth surface finish to reduce friction and heat; and use high grade steel in both the ring/pinion; with fitment designed to OEM spec

Application Summary

12P GM 3.08 R&P

Part Type

Differential Ring and Pinion

Product Overview

Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing processes, backed by 2 in-house quality labs to ensure each item manufactured meets exacting specifications & quality standards. Yukon designed gear tooth surface finish reduces both friction & heat for long races & high torque conditions. We use high grade steel in both the ring & pinion, with fitment designed to OEM specs. Go ahead, add loads of horsepower & go big on tires because Yukon offers the widest selection of gear ratios to choose from. You?ll know that your gear choice was the right one, because you chose Yukon. Yukon Ring & Pinions come with a 1 year warranty against manufacture defects. Yukon offers a Y.E.S. Plan for a lifetime, comprehensive, no-questions-asked protection plan covering your gears for as long as you own the vehicle.

Additional Application Notes
• GM 12 Bolt Passenger Car; Ring and Pinion Set; 3.08 Ratio; Fits 3 series 3.90 & Down Carrier GM 12 Bolt Passenger Car; 3.08 Ratio
• GM 12 Bolt Passenger Car; Ring and Pinion Set; 3.08 Ratio; Fits 3 series 3.90 & Down Carrier GM 12 Bolt Passenger Car; 3.08 Ratio~GM 12 Bolt Passenger Car; Ring and Pinion Set; 3.08 Ratio; Fits 3 series 3.90 and Down Carrier 8.875 in. 12 Bolt; Gear Set; 3.08 Ratio
• GM 12 Bolt Passenger Car; Ring and Pinion Set; 3.08 Ratio; Fits 3 series 3.90 & Down Carrier GM 12 Bolt Passenger Car; 3.08 Ratio~GM 12 Bolt Passenger Car; Ring and Pinion Set; 3.08 Ratio; Fits 3 series 3.90 and Down Carrier GM 12 Bolt Passenger Car; 3.08 Ratio 8.875 in. 12 Bolt; Gear Set; 3.08 Ratio
• GM 12 Bolt Passenger Car; 3.08 Ratio
• GM 12 Bolt Passenger Car; Ring and Pinion Set; 3.08 Ratio; Fits 3 series 3.90 & Down Car

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 20:22:52

Data: v4.2 - Upd: 2026-11-08 19:58:27

Features

3.08 ratio

Note on Vehicle Configuration

This listing includes the term "driver" or "passenger". Please note that this may refer to a region specific variation based on vehicle configuration (LHD/RHD) or regional preferences. Much of our database relates to US sourced products where "Driver" typically refers to the left-hand side in LHD vehicles, and "passenger" to the right. In RHD vehicles, this terminology is reversed. Review product details carefully for compatibility. Contact support if you have any questions. StreetFX may not accept returns for special order products.

(keyword: passenger)

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

(keyword: ring)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

AAP Selling Package Quantity UOM:EA
Package UOMEA
Package Qty1
Axle Model:GM 12P
Axle Type:GM 12 Bolt
Cover Bolt Quantity:12
Description:High performance Yukon Ring/Pinion gear set for GM 12P in a 3.08 ratio
Differential:GM 12 Bolt Passenger Car
Gear Ratio:3.08
Mounting Hardware Included:No
Part Number:yukYG GM12P-308
Pinion Spline Count:30
Position:Rear
Ring Gear Bolt Quantity:12
Ring Gear Outside Diameter:8.875
Shims Included:No
Title:High performance Yukon Ring & Pinion gear set for GM 12P in a 3.08 ratio

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Yukon Gear & Axle, YUKON GEAR AND AXLE, Yukon Gear And Axle (randys)
StreetFX SKU yukGM12P-308
SFX Item ID 4786228
Accounting SKU yuk-GM12P-308
Manufacturer SKU GM12P-308
Manufacturer UPC 883584244486
Alternative References YGA-24448

Ring and Pinion Gears, 3.08:1 Ratio, 8.875 in. Ring Gear, GM 8.875 in. Passenger Car, Set

Yukon Gear & Axle ring and pinion sets are strong but quiet performers. Designed to handle some of the harshest conditions, these sets utilize the latest design and manufacturing technologies to afford you a smooth running gear that's durable and easy to set up. Yukon ring and pinions are available in hundreds of size, ratio, and axle model options. Whether you're on the street, off-road, or at the track, you'll experience unrivaled power and gear performance. Order the model recommended for your application.

Product Attributes
BrandYukon Gear & Axle
Manufacturer's Part NumberYG GM12P-308
Part TypeRing and Pinion Gears
Product LineYukon Gear & Axle Ring and Pinion Sets
UPC883584244486
Differential Case Design TypeGM 8.875 in. (12-bolt), passenger car
Ring and Pinion Ratio3.08:1
Cover Bolts12
Ring Gear Bolts12
Pinion Spline Count30
Carrier Series3
Ring Gear RotationStandard
Ring Gear Teeth40
Pinion Gear Teeth13
Ring Gear Diameter (in.)8.875 in.
Pinion Shaft Diameter (in.)1.625 in.
Installation Kit IncludedNo
Cover Gasket IncludedNo
Pinion Shims IncludedNo
Carrier Shims IncludedNo
Crush Sleeve IncludedNo
Pinion Seal IncludedNo
Pinion Nut IncludedNo
Ring Gear Bolts IncludedNo
Head Bearing IncludedNo
Tail Bearing IncludedNo
Carrier Bearings IncludedNo
Axle Seals IncludedNo
Axle Bearings IncludedNo
Differential Cover IncludedNo
Differential Oil IncludedNo
Friction Modifier IncludedNo
Installation DVD IncludedNo
QuantitySold as a set.

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