They sell a puller at Doo for it. you take the rubber plug out of the drive axle and put in a brass plug that the puller pushes on. The puller reaches through the disk and grabs the caliper and pulls it without touching the disk.(after you take out the three or four bolts).Its a cheap looking thing but it works good and I think it was about $50. It didn't take much to pull it off with the right tool. Too bad your not in Edm or I'd say come buy and borrow.
Thanks I finallly got it off, went to a tech, he said to put a heelbar behind the ring and tap on the end of shaft with blok of wood it worked.But a puller would have good, thanks for the help.