Yukon Gear & Axle USA Standard Gear & Install Kit

2007–2016 Jeep Wrangler JK 3.6L/3.8L V6

Part #: ZGK014

Overview

The Yukon Gear & Axle USA Standard Gear & Install Kit with a 5.13 ratio is a comprehensive solution designed specifically for Jeep Wrangler JK models equipped with 3.6L and 3.8L V6 engines from 2007 through 2016. This kit simplifies the re-gearing process by combining front and rear ring and pinion sets with a complete master overhaul kit, ensuring a precise and reliable fit. Ideal for Jeep owners looking to restore or enhance their drivetrain performance, this kit supports improved torque delivery and drivability, especially after tire upgrades or modifications.

Built to meet the demands of daily driving, off-road adventures, and spirited trail runs, the USA Standard Gear & Install Kit offers a durable and cost-effective way to maintain optimal gear ratios without compromising reliability or quality.

Key Features

This kit is engineered to provide a seamless re-gear experience with high-quality components and thorough testing. Key features include:

• Complete front and rear ring and pinion sets matched for optimal gear ratio performance
• 5.13 gear ratio designed to restore power and efficiency after larger tire installations
• Comprehensive master overhaul kit including bearings, seals, and gaskets for a full rebuild
• Manufactured and tested to meet strict dimensional, material, and fitment standards
• Compatible with Jeep Wrangler JK 3.8L V6 (2007–2011) and 3.6L V6 (2012–2016) engines
• Durable construction to withstand daily driving, off-road use, and high-torque applications
• Easy installation with all necessary components included in one kit
• Designed to maintain factory-like performance and reliability

Construction & Design

Yukon Gear & Axle utilizes premium materials and precision manufacturing processes to produce gears that meet or exceed OEM specifications. Each ring and pinion set undergoes rigorous in-house quality testing, including dimensional accuracy and material integrity checks, to ensure long-lasting durability and smooth operation. The master overhaul kit components are selected to provide a complete rebuild solution, minimizing the need for additional parts and ensuring proper fitment.

The gears are crafted from high-grade alloy steel and heat-treated for enhanced strength and wear resistance, making them capable of handling the stresses of both on-road and off-road driving conditions.

Installation & Fitment

The USA Standard Gear & Install Kit is designed for direct fitment on Jeep Wrangler JK models equipped with 3.8L V6 engines from 2007 to 2011 and 3.6L V6 engines from 2012 to 2016. Installation requires standard differential disassembly and reassembly procedures, which are simplified by the inclusion of all necessary bearings, seals, and gaskets in the kit. This all-in-one package reduces downtime and the risk of missing components during installation.

Professional installation is recommended to ensure proper gear setup, including backlash and gear pattern adjustments, which are critical for optimal performance and longevity.

What's Included

• Front ring and pinion gear set (5.13 ratio)
• Rear ring and pinion gear set (5.13 ratio)
• Master overhaul kit with bearings, seals, and gaskets for front and rear differentials
• Installation instructions and technical support

Ideal For

This kit is ideal for Jeep Wrangler JK owners who have upgraded to larger tires or who require a complete differential rebuild with a matched gear ratio. It suits off-road enthusiasts, daily drivers, and anyone seeking to restore factory-like performance and drivability after drivetrain modifications or wear. The 5.13 gear ratio enhances torque multiplication, improving acceleration and control in demanding conditions.

Yukon Gear & Axle supplies hardcore drivetrain components—ring & pinion gears, axles, lockers, and differential upgrades—built for off-road and high-load performance. Trusted by enthusiasts and installers, Yukon focuses on fit, strength, and proven options for re-gearing and reinforcing trucks and 4x4s running bigger tires and tougher terrain.