Yukon 9.25in CHY 3.91 Rear Ring & Pinion Install Kit 31 Spline Positraction 1.62in Axle Bearings

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 9.25in. CHRYSLER; 3.90 Ratio Rear Ring/Pinion Gear Set and Master Install Kit Package; with 31 Spline Yukon Dura Grip Limited Slip Positraction; and 1.62in. Inside Diameter 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.

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.

• For Applications w/12 Bolt Rear Cover And 12 Bolt Ring Gear
• For Applications with 12 Bolt Rear Cover and 12 Bolt Ring Gear
• Gear/Install Kit Incl. Yukon Dura Grip Clutch Style Limited Slip [LSD]; All Positraction Units Are Fully Rebuildable
• 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 Gear and Install Kit Includes Yukon Dura Grip Clutch Style Limited Slip (LSD); All Positraction units are fully rebuildable.
• The Ring Gear Diameter Is 9.25 in.
• The Ring Gear Diameter is 9.25"
• This Particular Kit Contains 3.90 Ring Pinion Gear Set
• This particular kit contains a 3.90 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

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.

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.

Product Details

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.

Reference Information