Review on Efficient Axle Shaft Seal Installer for Ford 1998-2004 F-250/350/450/550 – OTC 6695 by Tommy Russo

If you want to make large gaskets that put pressure on the front knuckles, buy this tool or find a friend who has it. It has a machined step to set the correct depth. too deep and it will chafe the back. too small and you will have a hard time putting the block storage back in place. The price of the part is the equivalent of an hour's work in the store, so you're always ahead of the money no matter how you look at it. Another nice feature is the lip on the other end to set the perfect axle depth after you press the seal against the axle on the bench.