No need to pull the cover, or remove the shaft. (Driving the shaft out of the cover isn't impossible, but putting it back in may be a challenge without removing the cover.) Take the left lift arm off, and get a slide hammer, also known as a dent puller. Drill a hole through the face of the seal on each side of the shaft, then screw the slide hammer in those holes and use it to yank the seal out. I drill 2 holes, start on one side, get the seal to move a little was, and then move to the hole on the other side, it just depends on how hard the seal sticks in the hole. You can then clean things up and carefully tap the new seal in. This is easy enough to do that I would personally do both sides and have it done. That other seal probably isn't too far behind the one on the left.

I have a local bearing warehouse that also supplies seals. If I can get them a CR or national number, they can get me what I need with quite a bit of savings. That seal should be a CR 19832. The Oliver part number is 103 682A and can be purchased at any AGCO dealer. If you don't have a local dealer try <!-- w --><a class="postlink" href="http://www.agpartsfirst.com">www.agpartsfirst.com</a><!-- w -->  If it isn't on the website, give them a call or email, and Jerry will be able to get it for you.