OK - Upper swivel pin leaked so pulled motor, removed gimbal housing, removed bell and ring. Just picked up new bushing and seal for the upper swivel. Now for the bad - neither the bushing or the seal seem to fit tight in the Gimbal housing. Is the hole in the upper gimbal suppose to be tapered? Shouldn't the seal require being pressed in? If the Gimbal housing is truly shot, is it repairable. (This is a bravo HD setup)