First, I would like to say that I have been following the forum for a little while now and am very thankful for the great wealth of information shared by such knowledgable people.

This evening, while doing F&R pads and rotors on my 91 240 (no ABS, Girling vented fronts, ATE rears), upon reattaching the rear passenger side caliper, the lower mounting bolt sheared off even with the mounting point on the axle. The remainder of the bolt came out of the caliper easily, so that is fine. The problem is that the bottom of the bolt is still firmly lodged in the mounting point on the hub (?), with both ends flush to the bracket. :(

This remnant has been repeatedly doused with PB Blaster and had a number of futile measures thrown at it, including attempts to chisel or punch a groove to use a screwdriver, and drill through the center to "collapse" the bolt (ok, I don't know what I was thinking). As it stands now, the remnant is still very seized in the threaded part of the bracket, with small hole drilled through its center.

The car is up at a friend's shop who was nice enough to let me make use of the lift and bay, and I hate to inconvenience him further. Obviously I need some new bolts, and I was wondering if suitable replacements could be found without having to order the specific Volvo part. More pressing, though, is what to do about the remains of the bolt lodged in the bracket. Is this a part of the axle assembly or can it be removed along with the hub? What is the minimum that needs to be replaced in order to make way for a new bracket? There is an ominous drawing in the Bentley that shows this bracket as part of the whole live rear axle assembly which is making me nervous. I apologize for the novel and would greatly appreciate any and all ideas you might have.

Thanks,
Drew