In Reply to: 8N Rear Axle Seals posted by Ken Carlsen on September 25, 2019 at 20:54:52:
"outer seal D5NN4115A in two locations. In the exploded view the first is in part of the seal retainer that bolts on outside the brake shoe assembly. This makes sense. This same seal is also shown between the brake shoe assembly and the axle bearing retainer. This second one doesn't seem like it would actually fit in the retainer..."
Depending on exactly when the tractor rolled down the assy line, the outer seal will be one of the two you reference, not both. The tractor will have different bearing retainers, depending on which outer seal is used.