Currie Differential Cover

Currie Differential Cover Products for the Ford 9-Inch

When a rear axle is built or serviced, the seal between the third member and the housing matters as much as the gears inside. Currie's differential cover offerings focus on exactly that point for the Ford 9-inch, the axle the company has built its reputation around. Browse the full Differential Cover category for options across other axle designs, or learn more about the manufacturer on the Currie brand page.

Why the 9-Inch Is Different

The Ford 9-inch is unusual among solid axles. Access to the internals comes from the pinion (front) side, with the differential assembly coming out of the housing as a unit attached to the cover. That drop-out design makes setup on the bench convenient, but it also means the third-member joint is the sealing surface every time you change gear ratios, swap carriers, or re-check pinion and backlash settings. A quality gasket and proper fasteners are what keep gear oil inside the housing.

The CE-9007 Gasket Kit

Currie's featured product here is the CE-9007 kit. It is a Ford 9-inch kit with a third member gasket, 10 Nyloc nuts, and 10 aluminum crush washers. Rather than selling a bare gasket, Currie bundles the hardware you need to reassemble the joint. Listings for the part describe it as an upgraded steel-core, rubber-coated gasket backed by a limited 2-year warranty.

• Fitment: Ford 9-inch third members with the 10-bolt pattern
• Hardware: Nyloc nuts resist backing off under driveline vibration, while aluminum crush washers help seal the studs
• Convenience: Everything for a typical reassembly arrives in one kit

The 3/8-24 Nyloc nuts included are steel with a zinc finish and a nylon insert.

A Natural Fit With Currie's Third Members

Currie is best known for its 9-inch rear ends. The company began producing 9-inch rearends, based on the Ford design, for kit cars and street rods in the early 1980s. Its complete third members, such as the 31-spline TwinTrac units with nodular iron cases and big bearing pinion supports, are exactly the kind of assemblies that benefit from a fresh gasket every time they are pulled and reinstalled. Currie also offers third member service kits that pair the gasket set with gear oil for a complete install.

Shopping Considerations

• Confirm that your housing is a Ford 9-inch pattern; other axle families use different covers and gaskets.
• Replace the gasket whenever the third member is removed instead of reusing it.
• Use fresh hardware and tighten fasteners evenly in a crisscross pattern to avoid leaks.
• Pair the kit with fresh gear oil and new axle seals when rebuilding the rear end.

The lineup is small and focused, but for owners of Currie-built or other Ford 9-inch rear ends, it is a practical, purpose-matched way to complete a rebuild. For the wider selection of Currie drivetrain products, visit the Currie brand page or compare options across the Differential Cover category.