Revolution Gear & Axle REV-F350-538-K 5.38 Ratio Ring & Pinion Gear Package

• Gear ratio: 5.38:1
• Compatible axle housings: Ford 10.25" / Dana 60 (verified for listed years)
• Pinion spline count: 31-spline for the Ford 10.25" / 29-spline for Dana 60 (depending on specific housing) - verify per vehicle
• Material: 8620 heat-treated alloy steel
• Rotation: Rear axle application - standard or reverse cut as required by housing
• Application: Rear axle only; front axle not confirmed under this part number

Included Components

• 1x Ring gear
• 1x Pinion gear assembly
• 1x Crush sleeve or pinion preload spacer (application-specific)
• 1x Master bearing installation kit (includes bearings, seals, shims) - confirm packaging
• 1x Installation instructions / manufacturer spec sheet

Product Description

The Revolution Gear & Axle REV-F350-538-K gear package is built specifically for the Ford F-250/F-350 trucks from 1993 to 2010 with the 10.25" / Dana 60 rear axle housings. With a 5.38:1 ratio, this set dramatically improves low-end torque, supports larger tire fits, and enhances towing and heavy-duty use where factory rear axle gearing becomes a limiting factor.

Constructed from high-grade 8620 alloy steel and heat-treated to rigorous standards, this gear set features precision lapping for quiet engagement and long life under load. Combined with a master bearing installation kit, it offers installers a comprehensive solution for upgrading the rear differential without replacing the axle housing.

Installation should be performed by a qualified technician using proper differential setup tools - bearing preload, backlash and gear pattern must be accurately set for optimal performance and longevity. Fitment is confirmed for 1993-2010 Ford F-250/F-350; coverage for years beyond 2010 or other axle configurations is unconfirmed at the time of listing.