Did mine a short time ago. From memory, I took the hub off and I also took off the brake backing plate since I was fitting new felts to the emergency brakes, and generally cleaning up the brake cams, levers etc. With the brakes out and the hub put back on end of axle (give axle nut a couple of turns), a few sharp tugs got the axle moving outwards as others had suggested it would.
As for the seals, the inner old seal comes out with a simple puller, or any sort of homemade pull device. I bought the FS inner which came ready to install, and you just need to be carefull to fully tap it home (use length of 1.75" pipe)and carefully reinstall axle, avoiding damage to seal, and ensuring splines align. I did have some trouble getting the outer seal pressed into the retainer, had to file the bumps a bit so it would go in, no big deal.
Assuming you are leaving the old style bearings, then you pack the inner seal area with good bearing grease, install axle/bearing, tapping carefully until fully seated, then fill retainer with grease and bolt it in place once brake backer plate is in place. A surprisingly easy job!
Finishing up, take care in tightening the 10 - 5/16" bolts as they can be twisted off easily (I snapped one, would suggest you use new ones as old ones may have been over torqued before). Also, some anti-seize on the axle shaft before placing hub back on will make it easier to get off next time. Make sure key is in proper location, and tighten axle castle nut up completely to avoid any chance of play and then back to first cotter pin hole. Bob's your uncle!
Last edited by Gunsmoke; 05/11/13 07:49 PM.