Well hoping to get the car up in the air tomorrow and see if there is any movement in the ring. Really need to check how eccentric it is. Looks kinda cocked but no sign of impact. Hoping I can heat it and tap it back square. As for securing it against further movement. I've been considering options from a large hose clamp/jubilee clip tightened alongside, some loctite cylindrical retaining compound or even a generous bead of sikaflex... Hmmmmmmm