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Fel-Pro 4390 Drive Axle Shaft Flange Gasket - Rear
Fel-Pro 4390 Drive Axle Shaft Flange Gasket
Fel-Pro 4390 is a composite drive axle shaft flange gasket built for axle flange sealing where a precise fit matters. It is shaped for applications that use a 6-bolt flange pattern with a 3.359-inch inside diameter and 4.688-inch outside diameter.
This gasket is a direct-fit sealing component for driveline and axle service, including Ford F-150 and Chevrolet Silverado 1500 repair work where axle flange leakage needs to be addressed with the correct sealing surface.
Key Features
- Composite gasket material for axle flange sealing
- 3.359-inch inside diameter for application-specific fit
- 4.688-inch outside diameter for flange coverage
- 6-bolt hole pattern
- Fel-Pro part number 4390 for catalog and service reference
- Cross-references Monroe Shocks & Struts 172286 for the same application
Product Details
Fel-Pro designs sealing products around vehicle-specific dimensions and sealing surfaces, and this drive axle shaft flange gasket follows that approach. The composite construction supports a consistent seal at the axle flange interface, helping maintain proper driveline sealing during axle service. For technicians working on Ford F-150 or Chevrolet Silverado 1500 driveline repairs, Fel-Pro 4390 provides the dimensional details needed to match the flange pattern and sealing area.
Common Problems It Can Address
- Axle flange oil seepage at the sealing surface
- Leakage after axle shaft or differential service
- Damaged or compressed original flange gasket material
- Improper sealing from a mismatched flange gasket
- Maintenance issues caused by worn driveline sealing components
Installation Notes and Tips
Clean the flange surfaces thoroughly before installation and remove all old gasket material, sealant residue, and corrosion. Verify the 6-bolt pattern and gasket dimensions against the axle flange before assembly. Follow the vehicle service procedure for torque sequence and recheck for seepage after the repair.
Quality Assurance
Fel-Pro gaskets are built around application-specific sealing materials and vehicle-focused dimensions to support dependable sealing performance in professional repair environments.
| Brand | Fel-Pro |
|---|---|
| Part Number | 4390 |
| Inside Diameter (Inch) | 3.359 |
| Material | Composite |
| Number of Bolt Holes | 6 |
| Outside Diameter (Inch) | 4.688 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.