When i ordered my rear axle's from moser i had told the guy i would be running either wilwood or aerospace disc's. My questions is it looks to me that the caliper bracket slides around the axle and bolts to the housing. My axles have the sealed bearings and have a retainer on them. Does the caliper bracket bolt over top of the retainer or does the retainer have to be removed from my axles and then the caliper bracket bolt on? Sorry if this sounds confusing.