Spicer 50491 Axle Shaft Seal Review

If you can live 2 weeks without a car this is the place to get parts. If you ask me if you can get auto parts in 2 days, it will cost a lot more than going to the local parts store.

This gasket fits my 2004 F-250 6.0 perfectly. I've had it on my truck for 4 months now and it's still working great. When I installed it, I didn't buy the installation tool. I just built one out of a PVC coupler, a piece of pipe and a PVC sanitary cap. This part is necessary to allow hubs to auto-lock when vacuum is applied to the axle.

Installing this seal without an installation tool is a headache. I could do one and several others, then it was easy. I like how this seal attaches to the axle shaft. This creates an airtight seal that allows the vacuum hubs to function properly. I manually blocked my hubs but no longer need to do so.

perfect fit! However, you absolutely need the tool used to tighten this guy. Anyone can do it using this part. I crashed my first one and had to order a second replacement because I didn't buy a tool. Please buy a tool and save yourself the headache. Tool 6695 Half Shaft Installer for Ford 1998-2004 F-250 F-350 F-450 F550 4X4 Wheel Cam Vacuum Oil Seal Installer