Ford F250 Rear Axle Seal Replacement: A Comprehensive Guide

(2) Motorcraft Rear 10.5 Axle Wheel Bearing Seal Left & Right for Ford
(2) Motorcraft Rear 10.5 Axle Wheel Bearing Seal Left & Right for Ford from


Regular maintenance is crucial to keep your Ford F250 running smoothly, and one of the essential tasks is replacing the rear axle seal. The rear axle seal prevents oil leakage and ensures optimal performance of the rear axle. In this article, we will provide you with a step-by-step guide on how to replace the rear axle seal in your Ford F250.

Tools and Materials Required

Before getting started, gather the following tools and materials:

  • Socket set
  • Torque wrench
  • Axle seal puller
  • Seal installer tool
  • New rear axle seal
  • RTV silicone sealant

Step 1: Preparation

Park your Ford F250 on a level surface and engage the parking brake. Place wheel chocks in front of the front tires to prevent any movement. Ensure you have enough workspace to comfortably work on the rear axle.

Step 2: Remove the Axle Shaft

Start by removing the tire and wheel assembly. Then, detach the brake caliper and rotor. Next, locate the axle shaft retainer and remove it using a socket wrench. Carefully slide out the axle shaft from the axle housing.

Step 3: Remove the Old Axle Seal

Using an axle seal puller, gently remove the old axle seal from the axle housing. Take your time and be cautious not to damage the axle housing during this process. Clean the area thoroughly to ensure proper adhesion of the new seal.

Step 4: Install the New Axle Seal

Apply a thin layer of RTV silicone sealant around the outer edge of the new axle seal. Carefully place the new seal into the axle housing, ensuring it is aligned correctly. Use a seal installer tool to press the seal firmly into place.

Step 5: Reinstall the Axle Shaft

Slide the axle shaft back into the axle housing, making sure it engages with the differential properly. Reinstall the axle shaft retainer and tighten it to the manufacturer’s specified torque using a torque wrench.

Step 6: Reassemble the Brake Components

Reattach the brake rotor and caliper to their respective positions. Make sure all bolts are securely tightened. Reinstall the tire and wheel assembly.

Step 7: Test for Leaks

Remove the wheel chocks and carefully lower your Ford F250. Start the engine and let it run for a few minutes. Monitor the rear axle seal area for any signs of leakage. If you notice any leaks, revisit the installation process and ensure everything is properly sealed.

Step 8: Final Check and Clean Up

Double-check all the components and connections to ensure they are secure. Clean up your workspace, removing any tools or debris.


Replacing the rear axle seal in your Ford F250 is a manageable task with the right tools and knowledge. By following this step-by-step guide, you can ensure the optimal performance and longevity of your vehicle. Remember to always refer to your vehicle’s manual and consult a professional if you encounter any difficulties during the process.