I find it a bit scarry that the tech colleage these kids are going to hasn't bothered to tell them about how bearing surfaces and ball races work. I still burst every one I remove open to look for the area showing damage, causing the noise. Trust Paul, Peter, Dave, Tommy, Ian and Me. If you heat the race up with anything other than sunlight!! It's Stuffed !!
P.s. Ian your showing your again giving ring gear fitting instructions