Includes: Cover, Spicer Premium reusable performance gasket, Drain Plug and Bolts Differential CoverGenuine Spicer light vehicle axle products are manufactured to the same high standards as original e... For full-performance differential covers that are engineered with the serious off-roader in mind, get the same name you trust for all your drivetrain products-genuine Spicer. What diff cover do I need for my 2001 Ford F250 7.3L RWD Spicer 10023537 Differential Cover (dana 80) 1 Pack 4 Spicer 10023537 Differential Cover (Dana 80), 1 Pack Spicer Performance Diff Cover Manufactured from high-strength nodular iron Dana Spicer 10023537. Diff Cover for Dana 80 rear. Nodular Iron Heavy Duty Diff COVER; Fits Dana 80 rear ends. Limited Supply: only 1 remaining Don't trust a knock-off to protect your intricate differential parts. Manufactured from high-strength nodular iron, Spicer performance diff covers are built to meet the demands of any environment.