They were just slightly to large for my hub. Perhaps my hub is slightly off or the pair I got was machined to large. Not sure. Anyhow they are extremely thick and will not give at all like a normal bearing cap. If they will not go on after a few strikes with the hammer they will never go on.After spending about an hour trying to drive these onto my 1.98 hubs I gave up and grabbed a pair of Bearing Buddy's. They fit just right.