I have been digging into the rear end on my H lately. What looked like a blown grease seal behind the brakes has turned into a relatively major tear down (for this tractor).The problem was actually caused by a broken differential case. besides the case, the inner and outer bearings in the right side bull pinion carrier were bad. The inner axle bearing on that side was missing a few balls and about half of the retainer. The bull pinion on the left side has a couple chipped teeth. And, oh yeah, the grease seals on the right side brake were shot too. Other than that, it worked fine. I think that the differential probably broke a couple years ago. At that time, the seal on the right side brake was leaking and since the outer bearing looked good, I just put new seals in, cleaned up the brake band, and let it go at that. In retrospect, that's probably when the bearing spigot sheared off the differential. In the mean time, he has been busy earning his keep plowing, disking, planting, plowing snow, etc. What ever needed doing, the H was getting it done. On taking the rear end apart, there is a thick layer of metallic mud in the bottom of the case by the drain plug and in the axle carriers. I doubt that any modern tractor would see another day in the field with that much metal circulating in the transaxle. It is no wonder why people are so attached to these tractors. 68 years old and going back into the field in the spring. I'll probably have to quit doing wheel stands 'though.
Greg
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