I need a bit more advice. I've dismantled the hub and pulled out the half-shaft. The bearing is loose on the shaft, and will side up / down a couple of mm or so. I'll need a puller to get the hub off off the shaft, to fit the new bearing. ( I can bporrow one from work ) I assume the shims then fill the gap between the hub and the bearing, though I can't see them at this stage. I can't understand why the bearing is able to move? Do the shims wear? From what I can glean, Tony Ivatec ( Ferrino ) had new bearings pressed on the shaft and shims made by McMillan back in 2005. What's the best way of checking the shaft itself is okay and not bent? Is it a simply a question of rolling it on a flat surface? Thanks, Clive.