It kind of depends on what you are going to use the tractor for. If you are going to use it hard you may want to replace some of the higher speed bearing, but I usually only replace bearings if the cage it broken or there is gauling in the balls or you can see defects. Also, if the balls and/or the race are rusty you may want to replace. It also depends on how much money you want to spend as many of the transmission bearings are quite expensive, especially the larger ones. Five thousands play in those old transmissions, to me, is not much. I have a Super H that one of the pinion bearings went out and one of the failed balls got between the bull gear and the pinion and stopped the tractor. My dad wasn't thinking when he shifted to low gear, let out the clutch, and crunch, broke out one of the teeth in the bull gear. He actually had a new tooth welded back in and used the tractor for years after that. I bought the tractor from him and have had it for years and you only hear a little clunk every revolution when in road gear. Roger
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Today's Featured Article - Experimental Tractors Article - by Danny Bowes (Dsl). Tractor technology appears to have nearly hit it's pinnacle of development. If you agreed with the subtitle, you are rather mistaken. Quite, actually. As a matter of fact, some of the technology experimented with over 40 years ago makes today's tractor technology seem absolutely stale by comparison. Experimentation, from the most complex assembly to the most simple and mundane component, is as an integral a part of any farm tractor's development
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