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Hi Chris, Yes, they probably have not been removed since it was built at the factory; and may not have to be removed now. I would not consider replacing those bearings unless I had a compelling reason to do so. Just so I could say it was completely rebuilt is not enough, in my opinion. Have you any indication that they need to be replaced? Have you tried to rotate the shaft by hand w/o the pitman rod connected to check for any "hardspots" or any noticeable play? I'd even mount the mower and run it with the pitman rod disconnected to see if there are any indications, by sound, of a bad bearing at either end. In other words, do everything possible to avoid removing either the driven pulley or the pitman drive wheel. You could open up a bag of worms that you are not counting on. That said, I believe those are gib-head, tapered keys that hold both items to the drive shaft. As such, they should be removed prior to attempting to use a puller. That's what the gib head is for. You may have to use a chisel between the key and the hub to begin the key movement. Use of a penetrating oil like PB Blaster could help. I also suggest that you remove both stamped steel flanges from the driven pulley so as to pull directly from the hub - not the flanges. You may have to also use a very generous amount of heat from an oxy/acet torch, preferably using a rosebud heating tip. I have used my B mower to mow about 10 acres every year for the past 30 years and Dad used it similarly for the 30 before that. Those bearings have never been replaced and do not need to be now. Keep 'em greased and you will be unlikely to ever need to replace 'em. Don't make work for yourself unless you really have to.  Rod
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