Yukon Gear 4340 Chrome-Moly Replacement Axle Kit For Jeep TJ / YJ & XJ Dana 30 / w/ Super Joints

Yukon high-performance axles are built with high-tensile strength 4340 chromoly, use superior production methods that include cold roll formed splines, and feature advanced induction coil heat treating to create an axle of unmatched quality and durability.

Additional Information

Yukon performance axles are built with high-tensile strength 4340 chromoly; use superior production methods that include cold roll formed splines; and feature advanced heat treating to create an axle of unmatched quality and durability.

Part Type

Drive Axle Shaft Assembly

Product Overview

Yukon 4340 Chrome-Moly replacement axle kit for Jeep TJ, YJ & XJ Dana 30, w/ SuperJoints and 27 spline inner axles. Yukon 4340 Chrome-Moly axles provide up to 50% increased strength over stock axles for use in extreme performance applications with large tires and high horsepower. Yukon's 4340 axles are manufactured using the latest technologies and the highest quality materials to ensure high strength and long life. This kit comes with inner & outer axles for both left and right sides along with Dana U/joint. Limited Lifetime warranty covers manufacturing defects and axle breakage for as long as you own the vehicle. This warranty is not transferable to another party. "No Questions Asked" replacement for first warranty return, however Yukon reserves the right to either replace axle or refund original purchase price after the first warranty claim. Yukon (through Randy's ring & pinion) makes final determination on warranty considerations. This kit is not recommended for daily driven vehicles.

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.

• 27 Spline Inner And Outer
• Fits Dana 30” differential
• Fits Dana Spicer 30 in. XJ; YJ and TJ
• Heavy duty 4340 chromoly construction
• Incl. Inner And Outer 4340 Chromoly Axles And Yukon Super Joints
• Includes 27 spline, 16.63” LH inner axle
• Includes 27 spline, 32.36” RH inner axle
• Includes two 27 spline outer axles
• Includes Yukon Super Joints
• Includes Yukon Vacuum Disconnect Block-Off Kit

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