<b>Application</b><br> Fit for All FordSuper Duty straight axle trucks 1978 – 2016 Dana 50 / Dana 60 Axle<br><br> <b>Function of Inner Axle Seal Installer</b><br> To repair your Super Duty Truck of Oil Leaking out the ends of the front axles tubes, allows <br>one technician working alone to install each seal in minutes to the correct depth without seal <br>damage. <br><br> <b>Package Included</b><br> 1PC Seal driver and 1PC 1/2 inch driving adapter.<br><br> <b>Installation Instruction</b><br> 1.Disassemble the front axle and then remove the old inner axles seals. <br><br> 2.Install a new seal onto the seal driver, the seal is designed to snap into place on the adapter. <br><br> 3.Position the seal driver and seal assembly squarely into the housing. <br><br> 4.Assemble 1/2 inch extensions as necessary to reach from the seal driver to the outer end of <br>the axle housing. <br><br> 5.Install the driving adapter onto the last 1/2 inch extension and drive the seal firmly into place <br>by hammering firmly on the driving adapter. <br><br> 6.Be sure to seat the seal all the way. There will be a significant change in tone when the seal is <br>seated. (The seal driver is designed to set the correct seal depth in the axle and cannot be <br>driven any further when the correct depth is reached.) <br><br> 7.Finally, remove the seal driver and reassemble the axle, then finish the installation.