Yukon Gear & Axle Performance Axle
2007–2011 Jeep Wrangler 3.8L V6, 2012–2017 Jeep Wrangler 3.6L V6
Part #: YA W38834
Overview
The Yukon Gear & Axle 4340 Dana 44 JK 30 Spl Left Inner Axle is engineered to meet the demanding needs of Jeep Wrangler JK owners who require superior strength and reliability for off-road and high-performance driving. Designed specifically for 2007–2011 Jeep Wrangler models with the 3.8L V6 engine and 2012–2017 models with the 3.6L V6 engine, this axle is built to withstand harsh conditions and heavy loads.
Whether you are upgrading your drivetrain for enhanced durability or replacing a worn factory axle, this Yukon axle delivers exceptional toughness and longevity. It is an ideal choice for enthusiasts who demand uncompromising quality and performance from their vehicle’s drivetrain components.
Key Features
This axle combines advanced materials and manufacturing techniques to provide a robust and reliable solution for Jeep Wrangler JK owners:
- Constructed from high-tensile strength 4340 chromoly steel for maximum durability
- Cold roll formed splines ensure precise fitment and increased spline strength
- Advanced induction coil heat treating enhances wear resistance and toughness
- Designed for Dana 44 axles with 30 spline configuration, matching factory specifications
- Compatible with aftermarket lockers for improved traction and off-road capability
- Length of 19.11 inches, optimized for left inner axle applications
- Manufactured by Yukon Gear & Axle, a trusted name in high-performance drivetrain components
Construction & Design
The Yukon 4340 Dana 44 JK axle is crafted from premium 4340 chromoly steel, known for its exceptional strength-to-weight ratio and resistance to fatigue. This material choice ensures the axle can endure the stresses of off-road driving and high torque loads without failure.
Yukon employs cold roll forming on the splines, a process that enhances the metal’s grain structure and increases the spline’s strength and durability. Additionally, the axle undergoes advanced induction coil heat treating, which hardens the surface while maintaining core toughness, resulting in a component that resists wear and impact damage over extended use.
Installation & Fitment
This axle is designed as a direct fit replacement for the left inner axle on Dana 44 axles in Jeep Wrangler JK models from 2007 to 2017 with 3.8L and 3.6L V6 engines. Installation requires standard axle removal and replacement procedures, with no modifications necessary when paired with compatible aftermarket lockers or factory components.
Professional installation is recommended to ensure proper torque specifications and alignment, preserving drivetrain integrity and performance.
What's Included
- One Yukon Gear & Axle 4340 Dana 44 JK 30 Spl Left Inner Axle (19.11 inches)
Ideal For
This axle is perfect for Jeep Wrangler JK owners who demand enhanced drivetrain strength for off-road adventures, rock crawling, or heavy-duty use. It suits enthusiasts upgrading their axles to handle aftermarket lockers and increased torque, as well as those replacing factory axles with a high-quality, durable alternative.
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.
Yukon Gear & Axle 4340 Dana 44 JK 30 Spl Left Inner Axle 19.11in w/Aftermarket Locker: Jeep Wrangler JK 2007-2017 3.6L/3.8L
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YA W38834 Yukon Gear & Axle 07-17 Jeep Wrangler JK Left Inner Axle. Yukon high-performance axles are crafted from high-tensile 4340 chromoly for exceptional strength and durability. Featuring cold roll formed splines and advanced induction coil heat treating, this axle delivers superior reliability and long-lasting performance. Designed specifically for Jeep Wrangler JK models with aftermarket lockers, it ensures optimal power transfer and enhanced off-road capability. Upgrade your drivetrain with this rugged, precision-engineered axle for improved toughness and confidence on any terrain.
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Yukon Gear & Axle Performance Axle
2007–2011 Jeep Wrangler 3.8L V6, 2012–2017 Jeep Wrangler 3.6L V6
Part #: YA W38834
Overview
The Yukon Gear & Axle 4340 Dana 44 JK 30 Spl Left Inner Axle is engineered to meet the demanding needs of Jeep Wrangler JK owners who require superior strength and reliability for off-road and high-performance driving. Designed specifically for 2007–2011 Jeep Wrangler models with the 3.8L V6 engine and 2012–2017 models with the 3.6L V6 engine, this axle is built to withstand harsh conditions and heavy loads.
Whether you are upgrading your drivetrain for enhanced durability or replacing a worn factory axle, this Yukon axle delivers exceptional toughness and longevity. It is an ideal choice for enthusiasts who demand uncompromising quality and performance from their vehicle’s drivetrain components.
Key Features
This axle combines advanced materials and manufacturing techniques to provide a robust and reliable solution for Jeep Wrangler JK owners:
- Constructed from high-tensile strength 4340 chromoly steel for maximum durability
- Cold roll formed splines ensure precise fitment and increased spline strength
- Advanced induction coil heat treating enhances wear resistance and toughness
- Designed for Dana 44 axles with 30 spline configuration, matching factory specifications
- Compatible with aftermarket lockers for improved traction and off-road capability
- Length of 19.11 inches, optimized for left inner axle applications
- Manufactured by Yukon Gear & Axle, a trusted name in high-performance drivetrain components
Construction & Design
The Yukon 4340 Dana 44 JK axle is crafted from premium 4340 chromoly steel, known for its exceptional strength-to-weight ratio and resistance to fatigue. This material choice ensures the axle can endure the stresses of off-road driving and high torque loads without failure.
Yukon employs cold roll forming on the splines, a process that enhances the metal’s grain structure and increases the spline’s strength and durability. Additionally, the axle undergoes advanced induction coil heat treating, which hardens the surface while maintaining core toughness, resulting in a component that resists wear and impact damage over extended use.
Installation & Fitment
This axle is designed as a direct fit replacement for the left inner axle on Dana 44 axles in Jeep Wrangler JK models from 2007 to 2017 with 3.8L and 3.6L V6 engines. Installation requires standard axle removal and replacement procedures, with no modifications necessary when paired with compatible aftermarket lockers or factory components.
Professional installation is recommended to ensure proper torque specifications and alignment, preserving drivetrain integrity and performance.
What's Included
- One Yukon Gear & Axle 4340 Dana 44 JK 30 Spl Left Inner Axle (19.11 inches)
Ideal For
This axle is perfect for Jeep Wrangler JK owners who demand enhanced drivetrain strength for off-road adventures, rock crawling, or heavy-duty use. It suits enthusiasts upgrading their axles to handle aftermarket lockers and increased torque, as well as those replacing factory axles with a high-quality, durable alternative.
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.
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YEARMAKEMODELSUBMODEL2012 - 2017JeepWrangler3.6L V62007 - 2011JeepWrangler3.8L V6
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Standard shipping
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Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Standard shipping
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.