Yukon Gear & Axle Full Float Axle

2003–2018 Dodge Ram 2500/3500 5.7L, 5.9L, 6.4L, 6.7L Diesel Engines

Part #: YA WC11.5-30-40

Overview

The Yukon Gear Chrysler 10.5/11.5in 30 Spline 4340 Full Float Axle is engineered for heavy-duty performance and durability, designed specifically for Dodge Ram 2500 and 3500 models from 2003 through 2018. This axle upgrade is ideal for truck owners seeking enhanced strength and reliability to handle demanding workloads and off-road conditions. Whether you drive a 5.7L Hemi, 6.7L Cummins diesel, or the powerful 6.4L 392, this axle provides the robust construction needed to maintain drivetrain integrity under high torque and heavy payloads.

Built to meet the rigorous demands of modern trucks, this axle is a direct fit replacement that ensures optimal compatibility and performance without compromising factory specifications.

Key Features

Yukon Gear & Axle incorporates advanced manufacturing techniques and premium materials to deliver superior axle performance. Key features include:

• Constructed from high-tensile strength 4340 chromoly steel for exceptional durability
• Cold roll formed splines for increased spline strength and precise fitment
• Advanced induction coil heat treating enhances wear resistance and fatigue life
• Full float design improves load capacity and axle shaft longevity
• 30 spline axle shafts engineered to handle high torque applications
• Compatible with both gasoline and diesel engine variants across multiple model years
• Direct bolt-in replacement for easy installation without modification
• Designed to withstand demanding off-road and towing conditions

Construction & Design

This axle is crafted from premium 4340 chromoly steel, known for its superior tensile strength and toughness compared to standard axle materials. The cold roll forming process used on the splines ensures a precise, uniform spline profile that resists wear and deformation under heavy loads. Additionally, the axle undergoes induction coil heat treating, a process that hardens the surface while maintaining a tough core, resulting in an axle shaft that resists cracking and fatigue over time.

The full float design separates the axle shaft from bearing loads, allowing the axle to support heavier payloads and reducing stress on the shaft itself. This design is especially beneficial for trucks used in towing, hauling, or off-road environments where axle reliability is critical.

Installation & Fitment

The Yukon Gear full float axle is engineered as a direct fit replacement for Dodge Ram 2500 and 3500 models from 2003 to 2018, covering a wide range of engine options including the 5.7L Hemi, 5.9L and 6.7L diesel engines, as well as the 6.4L 392 HEMI. Installation requires no modifications to the axle housing or suspension components, making it a straightforward upgrade for experienced mechanics and professional installers alike.

Proper installation ensures optimal axle alignment and drivetrain performance, maintaining factory ride quality and handling characteristics while enhancing durability.

What's Included

• One Yukon Gear & Axle 10.5/11.5in 30 Spline 4340 Full Float Axle shaft
• Protective coating to prevent corrosion during shipping and storage
• Installation instructions and technical support contact information

Ideal For

This axle is ideal for Dodge Ram 2500 and 3500 owners who demand increased strength and reliability from their drivetrain components. It is particularly suited for:

• Heavy-duty towing and hauling applications
• Off-road enthusiasts requiring rugged axle performance
• Truck owners upgrading from factory axles for enhanced durability
• Fleet vehicles subjected to rigorous daily use
• Anyone seeking a long-lasting axle solution for high-torque engines

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.