SKF 29528 Differential Pinion Seal - Rear

SKF Differential Pinion Seal 29528

SKF 29528 is a differential pinion seal built for rear axle sealing performance where lubricant retention and contamination control matter. It uses a LongLife sealing surface and precise dimensions to match the application requirements of Ford heavy-duty rear axles.

Key Features

• Part number 29528 differential pinion seal for driveline and axle service
• LongLife sealing surface type for durable contact at the shaft interface
• 3.000 shaft diameter, 4.568 outside diameter, and 1.000 width
• Engineered by SKF, a seal manufacturer with long-standing OE and aftermarket sealing expertise
• Cross-reference: National 127591

Application Details

This SKF differential pinion seal 29528 is used in rear axle assemblies on select Ford trucks and vans. It fits 2002-2005 Ford F-350 Super Duty, rear, 11.25" ring gear with 3.73, 4.30, 4.88, and 5.38 ratios. It also fits 1990-1996 Ford E-350 Econoline, rear, with 11.75" ring gear and full-floating axle, as well as 1990-1996 Ford E-350 Econoline Club Wagon, rear, with 11.75" ring gear and full-floating axle.

SKF has a long history in seal design and bonding methods, and this part reflects that focus on controlled material selection and application-specific fit. For Ford F-350 Super Duty and Ford E-350 Econoline rear axle service, part number 29528 is built to help maintain proper sealing at the pinion area.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination entering the rear axle housing
• Seal wear from shaft movement and long-term service
• Loss of lubricant that can affect axle operation
• Service replacement for worn or leaking pinion seals

Installation Notes

Confirm axle configuration, ring gear size, and ratio before installation. Inspect the pinion yoke and sealing surface for wear or scoring, since surface condition affects seal performance. Clean the housing bore and shaft area thoroughly, and install the seal squarely to avoid distortion. Verify the replacement matches the original dimensions and rear-axle application before reassembly.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and controlled production standards. The brand’s sealing heritage includes more than a century of road use and continuous development in sealing technology, supporting consistent fit and long service life in axle applications.