Fel-Pro 5578 Drive Axle Shaft Flange Gasket - Rear

Drive Axle Shaft Flange Gasket for Sealing

Fel-Pro 5578 is a composite drive axle shaft flange gasket built for axle flange sealing applications that demand a precise fit and dependable sealing surface. It uses application-specific materials to support 100% vehicle sealing performance in service.

For Ford and Lincoln driveline repairs, this gasket helps restore the seal between the axle shaft flange and mating surface. The 2.656-inch inside diameter and 4-bolt-hole layout support a direct-fit style installation where the original flange pattern matches.

Key Features

• Composite gasket material for axle flange sealing
• 2.656-inch inside diameter
• 4 bolt holes for the flange pattern
• Fel-Pro part number 5578
• Application-specific sealing design for driveline service

Detailed Description

Fel-Pro 5578 is a drive axle shaft flange gasket used in driveline and axle sealing applications where the flange-to-housing interface must stay sealed under operating conditions. The composite construction supports a stable sealing surface, while the application-focused design reflects Fel-Pro’s approach to vehicle-specific gasket engineering. This part cross-references Pioneer Automotive Industries 760020 for the same application. When servicing Ford and Lincoln axle assemblies, Fel-Pro 5578 provides a practical replacement option for restoring the original sealing interface.

Common Problems It Can Help Solve

• Gear oil seepage at the axle shaft flange
• Leakage at the flange-to-housing sealing surface
• Seal failure after driveline service or disassembly
• Contamination from a compromised axle flange gasket
• Repeat leaks caused by worn or damaged gasket material

Installation Notes and Tips

Clean both mating surfaces thoroughly before installation and remove all old gasket material, sealant residue, and debris. Verify the flange pattern, inside diameter, and bolt-hole alignment against the original part before assembly. Torque fasteners to the vehicle manufacturer’s specification and inspect the area after service for any signs of seepage.

Quality Assurance

Fel-Pro gaskets are known for vehicle-specific sealing solutions used in professional repair environments. Part number 5578 is built to support reliable axle flange sealing when the application matches the original design.