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Yukon Gear & Install Kit Package For 8.875in GM 12T in a 3.73 Ratio

SKU: YUKYGK2227

Ring and Pinion Gears

YUK Gear & Install Kits...

Yukon Gear & Install Kit Package For 8.875in GM 12T in a 3.73 Ratio

SKU: YUKYGK2227

Ring and Pinion Gears

YUK Gear & Install Kits...

A$1,913.22
IN STOCK! Est Ship 3-7 Days days. In stock at 1 location (6 available)

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Description

Yukon Gear & Install Kit Package For 8.875in GM 12T in a 3.73 Ratio

Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon Master Overhaul Kits in one single part number. Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacting specifications and quality standards. These kits contain the gears, bearings, and all the small parts needed to fully rebuild your differential(s) and come in ratios from 3.73 to 5.38. Yukon offers its Y.E.S. Plan, a lifetime, comprehensive, no-questions-asked protection plan covering your gear set kit for as long as you own your vehicle.If you are thinking about increasing tire size, looking for more towing power, enhancing off-road prowess, or just replacing worn gears, these convenient combo kits have everything your vehicle will need. Save money and time by letting Yukon pair the right high-quality gears with most comprehensive installation kits you can buy, all with one simple mouse click.

Additional Information

Yukon Gear/Axle 8.875in. GM 12 Bolt Truck; 3.73 Ratio Rear Ring/Pinion Gear Set and Master Install Kit Package; with Axle Bearings/Seals

Part Type

Differential Ring and Pinion Kit

Product Overview

Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon Master Overhaul Kits in one single part number. Yukon Gear & Axle high-performance ring and pinion gear sets are the benchmark of quality in the automotive gear industry. Yukon engineers use state-of-the art design, advanced heat-treating techniques, and leading-edge quality testing processes to ensure the structure and surface finish meet exacting specifications and quality standards. These kits contain the gears, bearings, and all the small parts needed to fully rebuild your differential(s) and come in ratios from 3.73 to 5.38. Yukon offers its Y.E.S. Plan, a lifetime, comprehensive, no-questions-asked protection plan covering your gear set kit for as long as you own your vehicle.

If you are thinking about increasing tire size, looking for more towing power, enhancing off-road prowess, or just replacing worn gears, these convenient combo kits have everything your vehicle will need. Save money and time by letting Yukon pair the right high-quality gears with most comprehensive installation kits you can buy, all with one simple mouse click.

Additional Application Notes
• 8.875 in. GM 12 Bolt Truck; Gear and Install Kit Package; Includes 3.73 Ratio Gear Set, Master Install Kit, 2.53 in. O.D. Axle Bearings and Seals; Fits 3.73 & Up Carrier Case

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: v4.2 - Upd: 2026-11-08 11:50:34

Features

  • Fits Carrier Cases Designed for 3.73 & Up Gear Ratio
  • Fits Carrier Cases Designed For 3.73 Up Gear Ratio
  • For Applications w/12 Bolt Rear Cover And 12 Bolt Ring Gear
  • For Applications with 12 Bolt Rear Cover and 12 Bolt Ring Gear
  • Pro Kits Feature The Highest Quality Components And Are Backed By The Best Warranty In The Business
  • Pro Kits feature the highest quality components and are backed by the best warranty in the business.
  • Pro Kits Incl. Premium Yukon Ring/Pinion Sets; Yukon Master Install Kits w/High Quality Timken Bearings
  • Pro Kits Incl. The Necessary Small Parts Required To Get Vehicles Off The Lift/Back On The Road Quickly
  • Pro Kits include premium Yukon ring and pinion sets, Yukon Master Install kits with high quality Timken bearings and the necessary small parts required to get vehicles off the lift and back on the road quickly.
  • Save Time/Money By Including Everything You Need In One Simple Part Number
  • The Gear and Install Kit Includes Axle Bearings & Seals
  • The Gear And Install Kit Includes Axle Bearings Seals
  • The Ring Gear Diameter Is 8.875 in.
  • The Ring Gear Diameter is 8.875"
  • This Particular Kit Contains 3.73 Ring Pinion Gear Set
  • This particular kit contains a 3.73 Ring & Pinion Gear Set
  • Yukon Pro Kits offer premium differential repair & performance parts in several convenient packages to save time and money by including everything you need in one simple part number.
  • Yukon Pro Kits Offer Premium Differential Repair Performance Parts In Several Convenient Packages

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 Type:GM 8.875 in.
Description:8.875in. GM 12T 3.73 Rear Ring/Pinion; Install Kit; Axle Bearings/Seals
Part Number:yukYGK2227
Title:8.875" GM 12T 3.73 Rear Ring & Pinion, Install Kit, Axle Bearings & Seals

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 12:37:17

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 yukYGK2227
SFX Item ID 4491515
Accounting SKU yuk-YGK2227
Manufacturer SKU YGK2227
Manufacturer UPC 883584106272
Alternative References YGA-10627

Ring and Pinion Gears, GM 8.875 in. (12-bolt), Truck, 3.73:1 Ratio, 30-spline, Standard, Designed for Carrier Cases with A 3.73 and Up Gear Ratio, Kit

Yukon Gear & Axle ring and pinion gear and installation kit combos are complete packages that include front, rear, or front and rear ring and pinion sets, along with the most complete master overhaul kits on the market—giving you everything needed to re-gear the front and/or rear differentials in one package. Conceived to handle some of the harshest conditions, these combos utilize the latest design and manufacturing technologies to afford you quiet running gear that's strong and easy to set up. The included Yukon master rebuild kits undergo extensive research to ensure a perfect fit and hassle-free install with the very best components. Order the combo designed to fit your application.

Product Attributes
BrandYukon Gear & Axle
Manufacturer's Part NumberYGK2227
Part TypeRing and Pinion Gears
Product LineYukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos
UPC883584106272
Differential Case Design TypeGM 8.875 in. (12-bolt), truck
Ring and Pinion Ratio3.73:1
Cover Bolts12
Ring Gear Bolts12
Pinion Spline Count30
Carrier Series4
Ring Gear RotationStandard
Ring Gear Teeth41
Pinion Gear Teeth11
Ring Gear Diameter (in.)8.875 in.
Pinion Shaft Diameter (in.)1.438 in.
Installation Kit IncludedYes
Cover Gasket IncludedYes
Pinion Shims IncludedYes
Carrier Shims IncludedYes
Crush Sleeve IncludedYes
Pinion Seal IncludedYes
Pinion Nut IncludedYes
Ring Gear Bolts IncludedYes
Head Bearing IncludedYes
Tail Bearing IncludedYes
Carrier Bearings IncludedYes
Axle Seals IncludedYes
Axle Bearings IncludedYes
Differential Cover IncludedNo
Differential Oil IncludedNo
Friction Modifier IncludedNo
Installation DVD IncludedNo
QuantitySold as a kit.
NotesKit designed for carrier cases with a 3.73 and up gear ratio.

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