How do you replace rear abs ring on a 2001 Volvo s40?

this is dependent on if the ring is "sweated" on or bolt on .... if its bolt on then remove the wheel , take off the brake caliper and the caliper holder , undo the large nut , that holds on the hub and remove . then unbolt the two bolts that hold on the abs ring and replace .... then refit everything you took off .