SKF STCK4406 Transfer Case Overhaul Kit

SKF STCK4406 Transfer Case Overhaul Kit

The SKF STCK4406 transfer case overhaul kit is built for service work on Ford and Lincoln 4406 transfer cases. It combines bearings, seals, and related sealing components in one kit to support a complete repair on applications such as the Ford F-150, Ford Expedition, Lincoln Navigator, and Ford F-250.

Key Features

• Transfer case overhaul kit for 4406 applications
• Includes high-quality bearings with matching cones and cups
• Seals are built to SKF standards with Bore-Tite coating for improved sealing performance
• Form-fitting gaskets and silicone sealant are included where applicable
• Designed to reduce repeat repairs by supplying the components needed for a full service
• Part number STCK4406 for easy identification and ordering

Detailed Description

SKF STCK4406 is a transfer case service kit engineered for 4406-equipped trucks and SUVs that need a complete overhaul rather than a partial repair. The kit is centered around precision bearings, seals, and gaskets where required, helping restore proper transfer case operation and sealing integrity. For Ford F-150 and Ford F-250 models with manual shift, electric shift, or Torque on Demand systems, as well as Ford Expedition and Lincoln Navigator Torque on Demand applications, this kit provides the core service parts needed for a thorough rebuild. This part number, STCK4406, is also a practical reference when matching service components for the same application.

This part cross-references National 207 for the same application.

What It Is Used For

• Transfer case fluid leaks from worn seals
• Noise or rough operation caused by worn bearings
• Service rebuilds on 4406 transfer cases
• Restoring sealing performance after internal wear
• Reducing repeat teardown work from incomplete repairs

Installation Notes and Tips

• Confirm the transfer case is the 4406 design before ordering.
• Match the vehicle’s shift system: manual shift, electric shift, or Torque on Demand, as listed in fitment.
• Inspect shafts, races, and mating surfaces during disassembly so new bearings and seals seat correctly.
• Clean all sealing surfaces thoroughly before assembly.
• Follow factory service procedures and torque specifications for the vehicle and transfer case.

Quality Assurance

SKF manufactures this kit to meet or exceed original equipment specifications. The included bearings use matched cones and cups, and the seals are produced to SKF standards with Bore-Tite coating for improved sealing performance. SKF STCK4406 is built for long service life in automotive, light-duty, and commercial transfer case applications.

• Fits 1996-2010 Ford F-150, 4406 w/Manual Shift, Electric Shift & Torque on Demand
• Fits 2004 Ford F-150 Heritage, 4406 w/Manual Shift, Electric Shift & Torque on Demand
• Fits 1997-2002 Ford Expedition, 4406 w/Torque on Demand
• Fits 1998-2002 Lincoln Navigator, 4406 w/Torque on Demand
• Fits 1996-1999 Ford F-250, 4406 w/Manual Shift, Electric Shift & Torque on Demand