If you are talking about the small rings (about 1" in diameter) that are on the input shaft, they are the feed for the rear clutch that is used in all forward gears, not reverse. If you are talking about the larger rings that go on the pump, those feed the front clutch which is used in high and reverse.
I'm talking the 1" or so on the front of the input shaft... I thought that ended up messing up reverse.. I was sure I seen this same thing on a 727.. but I dont know much
