The RCV Performance Ultimate CV Axle Set is the strongest upgrade available for the front Dana 44 in your Jeep Wrangler TJ or LJ Rubicon. These axles replace the factory U-joint shafts with a high strength constant velocity design that remains just as strong at full steering lock as it is when straighteliminating the binding, vibration, and premature failures common with traditional U-joints.

Tests prove RCV Ultimate CV Axles are twice as strong as OEM Rubicon shafts, giving your Jeep the confidence to run bigger tires, more power, and harder trails without worrying about breakage. They operate smoothly on the street and reliably on the trail with minimal maintenance.

Includes:

• Left & right RCV Ultimate Dana 44 CV axle shafts
• SST seals & installation tool
• Installation hardware
• Installation instructions
• Synthetic moly grease
• Black oxide coating (standard)
• Optional nickel plating available (contact us)

Specifications

• Axle Model: Dana 44
• Unit Bearing: Yes
• OEM Inner Spline: 30
• OEM Outer Spline: 27
• RCV Inner Spline: 30
• RCV Outer Spline: 27
• Left Inner Axle Length: 16.9
• Right Inner Axle Length: 31.88
• Outer Stub Axle Length: 6.11
• Boot Technology: RCV bootless, sealed joint design
• Warranty Note: Warranty is void over 40 tires

Fitment

• Designed for Jeep TJ & LJ Rubicon front Dana 44 axles:
• Jeep Wrangler TJ Rubicon 20032006
• Jeep Wrangler Unlimited LJ Rubicon 20042006
• Fits factory Rubicon 30 spline Dana 44 front axle.

Tech Insight

The TJ/LJ Rubicon uses a strong foundation with its front Dana 44, but the OEM U-joint shafts become a limiting factor when adding lockers, bigger tires, or more power. RCV solves this by replacing the U-joint with a constant velocity joint that maintains full torque transfer at any operating angle.

This means no more binding when turning under power, drastically reduced risk of breakage, better traction, and a noticeably smoother feel both on-road and off. For a TJ or LJ Rubicon build pushing 3540 tires, this upgrade is essential.