Collection: Eaton & Dana Differential Parts | NOS OEM Parts

Browse our inventory of Eaton and Dana-Spicer axle and differential gears, featuring a mix of OEM New Old Stock (NOS) and high-quality aftermarket options. Whether you're restoring a classic drivetrain or upgrading for better durability and torque, these components meet the demands of heavy-duty applications. Trusted for their strength and performance, these gears are ready for work — or the long haul.

Heavy-Duty Solutions — built to keep your truck running.

46 products

Your #1 Source for Remanufactured Transmissions, Differentials, Transfer Cases & PTOs — Since 1997

Trusted by Fleets & Technicians for Over 25 Years

Discount Parts Exchange delivers quality, reliability, and value in every drivetrain component. Backed by decades of hands-on experience, our heavy-duty solutions are built to keep your truck running.

Heavy-duty solutions — built to keep your truck running.

SHOP ALL CATEGORIES