Hi guys, Am looking for some advice here when im decelerating there is a whirring noise similar to the noise of the plastic stick things that used to stick in the spokes of my bike when i was a child. i thought it mightbe the thrust bearing but took it to the garage today and after looking at it on the ramp there is a hairline fracture about an inch long on the base plate of the gearbox. checked the oil level and it is fine but alongside the usual furry metal deposits that stick to the magnetic level plug there are 3 or 4 shards about 6mm long and about 3mm wide quite thin and shiny in appearance. any ideas what the problem is. mileage is 37k and warranty has expired.