Upgrade your 9904 Ford Super Duty front axle with the unmatched strength and articulation of the RCV Ultimate Dana 60 CV Axle Set. Designed to replace the factory U-joint axle shafts, these high-strength constant velocity axles deliver twice the strength of OEM while maintaining full torque transfer at every steering angle.

Where U-joints bind, chatter, and weaken under steering load, RCV CV joints remain smooth and strong. This gives your Super Duty better traction, improved steering feel, and far less risk of failure when running oversized tires, lockers, or heavy power output.

Includes:

• Left & right 35 spline RCV CV axle shafts
• SST seals & installation tool
• Installation hardware
• Synthetic moly grease
• Installation instructions
• Black oxide finish (standard)
• Optional nickel plating available (contact us)

  Important Fitment Note:

• Does NOT fit '00'02 F-250/F-350 models equipped with the 30 spline Dana 50 center section.
• Fits standard 35 spline Dana 60 only.
• Kits shipped after 7/1/2016 use the D9204 boot (older kits used the D2777).

Specifications

• Axle Model: Dana 60
• Unit Bearing: Yes
• OEM Inner Spline: 35
• OEM Outer Spline: 35
• RCV Inner Spline: 35
• RCV Outer Spline: 35
• Left Inner Axle Length: 15.38
• Right Inner Axle Length: 37.75
• Outer Stub Axle Length: 9.39
• Boot Technology: RCV bootless, sealed joint design
• Warranty Note: Warranty is void over 47 tires

Fitment

Compatible with:

• Ford F-250 Super Duty 19992004
• Ford F-350 Super Duty 19992004
• Must have standard 35 spline Dana 60 front axle
• Does NOT fit:
  • 20002002 Dana 50 (30 spline) front axle
  • Any ball-joint axle with differing spline counts

Tech Insight

The early Super Duty Dana 60 is strong, but the OEM U-joint shafts remain a major weak link when larger tires, added horsepower, or locking differentials are introduced. RCVs constant velocity joint design fixes that.

Benefits include:

• Full steering angle strength with no binding or chatter
• 35 spline inner & outer construction for maximum torque capacity
• Smoother steering and improved road feel
• Dramatically increased durability for off-road, towing, and oversized tires

If you're building a reliable, high power Super Duty, this is the axle upgrade that keeps your front end alive.