Yukon Gear 4.88 V6/Turbo Differential Ring & Pinion Gear Set for Toyota 8" Differential 4WD (1986-95 4Runner/Pickup)

Yukon Gear V6/Turbo Differential 4.88 Ring & Pinion Gear Set For Toyota 8" Differential

For 1986–1995 4WD Toyota Pickup & 1986–1995 4WD Toyota 4Runner Equipped with Toyota 8" Differentials and 22R-TE or 3VZ-E Engines

Overview

The Yukon Gear 4.88 Ring & Pinion Gear Set is a premium differential upgrade engineered for Toyota 4WD trucks and SUVs equipped with Toyota's durable 8-inch rear differential. Featuring a 4.88:1 gear ratio and a heavy-duty 29-spline pinion design, this gear set is ideal for restoring performance lost to larger tires, improving low-speed torque, increasing crawling capability, and enhancing overall drivetrain durability.

Designed for enthusiasts, overlanders, trail rigs, and restoration projects, Yukon ring and pinion gear sets are manufactured using advanced heat-treatment processes, precision machining, and rigorous quality testing to deliver long-lasting reliability and consistent performance.

Whether you're building a capable off-road Toyota or improving towing and highway drivability, this gear set provides an excellent balance of strength and performance.

Why Upgrade to 4.88 Gears?

The 4.88 ratio is one of the most popular gear choices for Toyota 4WD applications running larger-than-stock tires or operating in demanding terrain.

Performance Benefits

• Improved low-speed torque multiplication

• Enhanced off-road crawling performance

• Restores acceleration after larger tire upgrades

• Better throttle response

• Improved towing and hauling capability

• Reduced clutch and transmission strain

• More usable power in mountainous terrain

• Improved overall drivability

For many Toyota owners running 33-inch to 35-inch tires, 4.88 gears offer an excellent combination of highway manners and off-road performance.

Heavy-Duty 29-Spline Pinion Design

Unlike many factory Toyota gear sets that utilize a smaller 27-spline pinion shaft, Yukon engineers this gear set around a stronger 29-spline pinion design.

Advantages of the 29-Spline Upgrade

• Larger pinion shaft diameter

• Increased drivetrain strength

• Improved resistance to pinion failure

• Better durability under heavy loads

• Ideal for larger tires and off-road use

• Improved long-term reliability

This upgraded design helps strengthen one of the most heavily stressed components inside the differential.

Important 29-Spline Conversion Information

Please Read Before Ordering

Most 1986–1995 Toyota Pickup and 1986–1995 Toyota 4Runner models originally came equipped with 27-spline pinion hardware.

Because this Yukon gear set uses a larger 29-spline pinion shaft, additional conversion hardware is required for installation.

Required Conversion Components

• 29-Spline Companion Flange / Yoke

• 29-Spline Pinion Seal

• 29-Spline Pinion Nut

To simplify installation, these components are available when selecting the:

"29-Spline Gears + 27-to-29 Spline Conversion Hardware Kit"

under the Installation Spline Configuration option.

This package provides the required hardware needed to convert factory 27-spline applications to the stronger 29-spline Yukon setup.

Precision Yukon Engineering

Yukon Gear & Axle utilizes advanced manufacturing processes to ensure every gear set meets strict quality and durability standards.

Construction Features

• Precision-machined ring and pinion gears

• Advanced heat-treated alloy steel construction

• Optimized gear tooth geometry

• Premium surface finishing process

• Quality-tested gear patterns

• Engineered for quiet operation

• Designed for long service life

These manufacturing processes help ensure smooth engagement, proper wear characteristics, and dependable long-term performance.

Built for Off-Road & Heavy-Duty Use

Yukon gear sets are engineered to withstand demanding environments ranging from daily driving to extreme off-road use.

Durability Benefits

• High-strength gear construction

• Excellent wear resistance

• Designed for oversized tire applications

• Compatible with many locking differentials

• Proven performance under heavy loads

• Long-term drivetrain reliability

Whether your Toyota spends its time on the highway, trail, or deep in the backcountry, Yukon gears are designed to perform.

Yukon Y.E.S. Protection Plan

Yukon offers one of the most comprehensive protection plans available in the differential industry.

Coverage Benefits

• Eligible for Yukon Y.E.S. Protection Plan

• Lifetime protection available

• No-questions-asked coverage

• Protection available for as long as you own the vehicle

Refer to Yukon warranty requirements and installation guidelines for complete coverage details.

Ideal Applications

• Larger tire upgrades

• Off-road builds

• Rock crawling

• Overland vehicles

• Expedition rigs

• Towing applications

• Restoration projects

• Performance drivetrain upgrades

Vehicle Compatibility

Toyota Pickup

1986–1988 Toyota Pickup

• 4WD Models

• Toyota 8" Rear Differential

• 22R-TE and 3VZ-E Equipped Vehicles

1989–1995 Toyota Pickup

• 4WD Models

• Toyota 8" Rear Differential

• 22R-TE and 3VZ-E Equipped Vehicles

Toyota 4Runner

1986–1989 Toyota 4Runner

• 4WD Models

• Toyota 8" Rear Differential

• 22R-TE and 3VZ-E Equipped Vehicles

1990–1995 Toyota 4Runner

• 4WD Models

• Toyota 8" Rear Differential

• 22R-TE and 3VZ-E Equipped Vehicles

Fitment Notes

• Toyota 8-inch differential applications only

• Designed specifically for V6 and turbocharged Toyota applications

• Compatible with 22R-TE and 3VZ-E equipped vehicles

• 4.88:1 gear ratio

• Heavy-duty 29-spline pinion design

• Requires matching 29-spline yoke, seal, and pinion nut

• Will not fit Toyota 7.5-inch IFS front differentials

• Professional installation recommended

• Proper gear break-in required

• Verify carrier and locker compatibility before ordering

Factory G254 Differential Warning

Certain Toyota applications were equipped with the rare factory G254 4.88 differential assembly. This Yukon gear set is not compatible with those factory carrier configurations.

Available Configurations

Standard Gear Set

Includes:

• (1) Yukon 4.88 Ring Gear

• (1) Yukon 4.88 Pinion Gear

• Installation Instructions

Gear Set + 29-Spline Conversion Hardware Kit

Includes:

• (1) Yukon 4.88 Ring Gear

• (1) Yukon 4.88 Pinion Gear
  

• (1) 29-Spline Companion Flange / Yoke

• (1) 29-Spline Pinion Seal

• (1) 29-Spline Pinion Nut

• Installation Instructions

This option provides the necessary hardware required to convert factory 27-spline applications to the stronger 29-spline Yukon setup.