Those who followed my exploits with the broken caliper bolt will now know I decided to swap out the hub. Replacement ordered from Ebay and it turns up but I can detect slight play in the bearing compared to the one I took off. Anybody point me in the direction of a decent guide to swapping out the bearing on a C2. I decided to change out the coffin arm as it looks the original on the car with no details of change in the history and you guessed it the eccentric bolt was siezed into the inner sleeve of the bush so spent a pleasant afternoon cutting it out without touching the subframe. Oh the joys of 20 year old 996's