Review on Optimized Axle Spindle Seal - National 710701 by Anthony Colton

I used this gasket on my 2008 F-350 and it covers the end of the axle housing tube between the axle housing and the universal joint. When ordering, I wasn't sure if that was true because it differed from the original factory seal. It is actually an updated version that should fix the issue of the factory seal not staying in place. Worked great for me. I first drove it into the axle housing and then inserted the axle.