You know it baffles me that they aren't available. You would think that there are enough of this rigs around to have enough demand. This comes up quite often. I guess to set up a run of bearings, they just have to make too many to make it profitable.
I have a 1955 Oliver tractor with pinion thrust bearings that are obsolete. I found two sets of used ones. One set I installed and I am putting the others on the shelf just in case. But that bearing was used up to the late 60s on other tractors at least. You would think that isn't THAT old not to be available under any brand.
