Our 1936 John Deere Model B is leaking oil from the rear wheel bearing/felt seal retainer area. I'm trying to replace the felt seal but couldn't get the retainer ring to slide off the axle. Does the axle have to be removed to replace the felt seal? If it doesn't, how do you get it off? My axle has a "collar" at the retaining ring that appears to be unremoveable.
Also, should I be more worried about replacing the seals in the gear housing?