Yes, the push rod is in 2 parts, but the schematic shows no ball between them. Instead, the end of the long push rod is rounded to fit into a depression on the short one to allow spinning. I still suspect the long rod somehow got damaged - it is flat on the sprocket side end, and I think it is supposed to be rounded there as well... I scanned the page from the service manual but can't seem to paste it into this window - it shows no bearing between the rods.