Yukon Gear Spin Free Locking Hub Conversion Kit For SRW Dana 60 94-99 Dodge

End Expensive Unit Bearing Failures on Your Second-Gen Dodge with a Complete Front Axle Overhaul

The Yukon Gear Spin Free Locking Hub Conversion Kit YA WU-03 is purpose-built for 1994 to 1999 Dodge Ram 2500 and Ram 3500 single rear wheel trucks equipped with the Dana Spicer 60 front axle. YA WU-03 solves the chronic unit bearing failure problem that plagues these second-generation Cummins trucks by replacing the entire factory hub assembly with a time-tested tapered roller bearing setup paired with Yukon Hardcore premium locking hubs. The result is a Dana 60 front end that is dramatically easier and less expensive to service, delivers measurably better fuel economy through reduced drivetrain drag, and gives you instant two-wheel to four-wheel drive selectability. If you own a 94-99 Dodge Ram 1-ton SRW and have burned through expensive unit bearings, YA WU-03 is the permanent solution.

Key Features and Benefits

• Replaces failure-prone factory unit bearings with serviceable Timken tapered roller bearings and races for dramatically lower long-term maintenance costs
• Yukon 4340 Chrome-Moly outer axle shafts provide superior strength over factory pieces, resisting breakage under hard use and heavy towing
• Includes Yukon Hardcore premium locking hubs with a low-profile all-steel bezel that engages in a one-quarter turn, giving you fast two-wheel to four-wheel drive switching
• Eliminates the Central Axle Disconnect (CAD) system, removing one of the most common points of four-wheel drive failure on these trucks
• Tapered bearing design reduces parasitic drivetrain drag, which translates directly into improved miles-per-gallon figures
• New spindles, wheel hubs, wheel bearings, seals and all installation hardware are included so no separate parts sourcing is required
• Engineered specifically for the Dana 60 disconnect-design front axle found on 1994-1999 Dodge one-ton SRW applications
• Not compatible with four-wheel ABS or dual rear wheel configurations
• Backed by a Limited Lifetime Warranty against manufacturer defects

Fitment

Specifications

What Is Included

• Two new wheel hub assemblies (one per side)
• Two new spindles (one per side)
• Two Yukon 4340 Chrome-Moly outer axle shafts
• Two Yukon Hardcore premium locking hub assemblies
• Timken tapered roller bearings and races (both sides)
• High-quality hub seals
• Spindle nuts and locking washers
• All necessary installation hardware

Frequently Asked Questions

Will this Spin Free kit work on my 1994 Dodge Ram 2500 with four-wheel ABS?

No. The YA WU-03 is not compatible with four-wheel ABS applications. If your 1994-1999 Dodge Ram 2500 or Ram 3500 has four-wheel ABS, this kit will not work with that system. Verify your truck has rear-only or no ABS before purchasing.

Does this kit fit both the Ram 2500 and Ram 3500 Dana 60 applications?

Yes. The YA WU-03 kit fits both the 1994-1999 Dodge Ram 2500 three-quarter ton and the 1994-1999 Dodge Ram 3500 one-ton single rear wheel trucks, as long as both are equipped with the Dana Spicer 60 front axle in disconnect design without four-wheel ABS.

How much better fuel economy can I expect after installing this locking hub conversion on my second-gen Dodge?

Most owners report modest but noticeable improvements in highway fuel economy after installing the YA WU-03. The improvement comes from eliminating the constant rotation of the factory unit bearing and CAD components. Real-world gains vary by driving style, tire size and overall vehicle condition, but reduced drivetrain drag is a documented benefit of switching to a tapered bearing setup with lockout hubs.

What bearing brand is included in this Yukon Gear spin free conversion kit?

The YA WU-03 kit includes Timken tapered roller bearings and races. Timken is a trusted USA-based manufacturer known for high-quality bearings used throughout the automotive industry.

Do I need to replace my brake rotors at the same time as this hub conversion?

The YA WU-03 uses the factory brake rotor setup on 1994-1999 Dodge trucks, where the rotor mounts behind the hub. You do not need new rotors to complete the conversion, though many owners take the opportunity to install fresh rotors while the front axle is disassembled since the labor is already invested.

Will this Yukon Gear hub kit eliminate the CAD system on my second-gen Dodge?

Yes. Installing the YA WU-03 Spin Free kit on your 1994-1999 Dodge Ram converts the front axle from the factory Central Axle Disconnect design to a conventional locking hub setup. The CAD vacuum system is deleted, which eliminates one of the most common four-wheel drive engagement failures on these trucks.

What U-joint does the included outer axle shaft use?

The YA WU-03 outer axle shafts for the Dana 60 1994-1999 Dodge application use a Spicer-series U-joint suited to the factory 35-spline Dana 60 stub axle interface. Consult the included installation sheet for the exact U-joint specification, as Yukon includes the correct joints with the kit.

Is this kit compatible with aftermarket lift kits on my 94-99 Dodge Ram?

The YA WU-03 replaces hub and spindle components outboard of the steering knuckle. Lift kits that modify upper control arms, coil springs or add-a-leaf packs in the rear do not interfere with this conversion. However, extreme lift heights that stress the CV axle angle beyond factory limits may reduce axle life on any platform regardless of hub type.

Installation Instructions

1. Safely raise and support the front of the vehicle, then remove both front wheels.
2. Disconnect the ABS sensor (if equipped with rear-only ABS) from the top of the factory unit bearing and set it aside without damaging the wiring harness.
3. Remove the brake caliper and hang it from the frame with wire to avoid brake line stress.
4. Unbolt the factory unit bearing from the steering knuckle. Remove the unit bearing and outer stub axle shaft as a single assembly, sliding it out of the axle tube.
5. Clean the steering knuckle mating surface and inspect the knuckle for cracks or wear before proceeding.
6. Apply a thin coat of anti-seize to the knuckle-to-spindle mating surface, then install the YA WU-03 spindle onto the knuckle and torque to specification.
7. Install the dust shield and spacers per the included instruction sheet, then press the new Timken bearing races into the hub assembly using a bearing race driver until each race seats fully.
8. Pack the new Timken tapered roller bearings with high-quality wheel bearing grease, then install the inner bearing and seal into the hub.
9. Slide the new hub assembly onto the spindle, install the outer bearing, and thread on the inner spindle nut with the locking stud facing outward. Adjust bearing preload and lock with the provided tab washer and outer nut per the torque specifications in the instruction sheet.
10. Reinstall the brake rotor, caliper and ABS sensor. Press the new wheel studs into the hub.
11. Slide the Yukon 4340 Chrome-Moly outer axle shaft into the axle tube, connecting to the inner axle via the appropriate U-joint.
12. Install the Yukon Hardcore locking hub: seat the spring retainer, apply grease to the outer splines and ramp surfaces, install the spring, spacer and hub body, then install the retaining housing followed by the large circlip. Attach the hub face in the locked position with tabs aligned.
13. Torque all fasteners to the specifications listed in the included instruction sheet. Confirm the hub engages and disengages cleanly before reinstalling the wheels.
14. Repeat the entire procedure on the opposite side, lower the vehicle, torque lug nuts and perform a low-speed test drive before returning to normal use.

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.