Ford 10.25" & 10.5" 12-Bolt Fiber Differential Cover Gasket

This is a fiber differential cover gasket sized and punched for Ford 10.25" and 10.5" 12-bolt rear axle housings — two heavy-duty Ford rear ends that share the same 12-bolt cover pattern, allowing one gasket to serve both axle sizes. This makes it a common service gasket across a wide range of Ford heavy-duty truck and SUV applications including F-150, F-250, F-350 Super Duty, Bronco, and Excursion builds.

It's a direct replacement for a leaking, damaged, or missing cover gasket on compatible Ford 10.25" and 10.5" axle applications, providing a reliable fiber seal between the differential cover and the axle housing sealing rail during cover reinstallation, fluid changes, or cover upgrades.

This gasket is sold individually and includes no hardware, cover, or drain plug. Confirm your axle model and cover bolt pattern before ordering, and clean the cover and housing sealing surfaces thoroughly before installation for a proper seal.

Fiber Gasket Cut for the Ford 10.25" and 10.5" 12-Bolt Cover Pattern
This fiber differential cover gasket is punched to match the shared 12-bolt cover pattern of Ford 10.25" and 10.5" rear axle housings, giving you a clean, leak-resistant seal between the differential cover and the axle housing sealing rail during cover reinstallation or replacement.

One Gasket, Two Axle Sizes — Stops Leaks on F-Series and Excursion Builds
A worn, crushed, or damaged cover gasket is one of the most common causes of gear oil seepage at the rear axle. Because the Ford 10.25" and 10.5" share the same 12-bolt cover bolt pattern, this single fiber gasket covers both axle sizes — usable with or without RTV compound depending on your preference and the cover's sealing surface condition.