Rebuilding the engine on my buddy's 1972 TR6RV and made the determination that the clutch assembly had more play than it should. I bought a new thrust washer and 20 new rollers. Upon reassembly, the bearing would not go back together. I tried heating the housing but it still would not accept the hub and rollers. I measured the new rollers and they are .255 inch diameter and the old ones are consistently .2485 to .249. No visible wear or lip on the race in the housing. There is .001 difference between the new thrust washer and the old, the new one being thicker. New and old rollers both measure .233 in height. Are there two different size rollers and I received the wrong ones? I have not reassembled with the old rollers to see if the thrust washer improves the play I was looking to eliminate. Suggestions?