Dorman 697-329 Differential Ring and Pinion - Rear

Overview

Dorman 697-329 is a standard replacement differential ring and pinion for specific Ford and Lincoln rear axle applications. It is built for vehicles using a 9.75-inch ring gear and a 4.88 axle ratio, making it a direct OE-style replacement for the original gear set.

Compatible with Ford F-150, Ford Expedition, and Lincoln Navigator applications, this ring and pinion is intended for rear differential service where the original gear set has worn, been damaged, or needs ratio restoration. Part number 697-329 is also cross-referenced to Monroe Shocks & Struts 172286 and 182286 for the same application.

Key Features

• 4.88 gear ratio for matched differential service.
• Standard replacement grade for OE-style repair work.
• Direct replacement for the original equipment gear set.
• Package includes the ring gear and pinion gear.
• Fits 9.75-inch ring gear applications listed in the fitment data.

Detailed Description

This differential ring and pinion is engineered for rear axle applications across a wide range of Ford and Lincoln trucks, vans, and SUVs. Fitment includes 1997-2013 Ford Expedition, 1998-2013 Lincoln Navigator, 1997-2008 Ford F-150, and related E-Series and Lobo applications that use the specified 9.75-inch ring gear and 4.88 ratio. The Dorman 697-329 helps restore the correct final drive ratio when replacing worn gears or servicing the differential.

For buyers searching for a Ford F-150 rear differential ring and pinion 4.88 ratio, or a Lincoln Navigator rear axle gear set, this part matches the listed OE application requirements. The Dorman 697-329 also serves Ford E-150, E-250, Econoline Van, Econoline Wagon, Mark LT, F-150 Heritage, F-250, and F-250 HD applications shown in the fitment table.

What It Is Used For

• Replacing worn or damaged differential gears.
• Restoring the correct 4.88 final drive ratio.
• Addressing gear noise caused by gear wear or mismatch.
• Repairing rear axle driveline issues tied to ring and pinion wear.
• Supporting differential rebuilds on listed Ford and Lincoln applications.

Installation Notes and Tips

Verify the axle housing uses a 9.75-inch ring gear and the 4.88 ratio before installation. Differential gear setup requires precise backlash, pinion depth, and bearing preload measurements, so professional installation is recommended. Confirm the vehicle application against the fitment table for the exact year, make, model, and rear position before ordering.

Quality Assurance

Dorman lists this part as a standard replacement designed to directly replace the original equipment gear set on the specified applications. Part number 697-329 is built for OE-style service on the listed Ford and Lincoln rear differential applications.