While I have not had a trailing arm bolt actually break on me, I very well nearly did. I ignored a very obvious warning sign - a necessary steering correction under acceleration. What had happend is that the trailing arm bolt had stretched out or slightly bent, and I lost all of the alignment shims. This left a LOT of freeplay on the trailing arm itself, and ended up bending the bolt quite badly. Fortunately, my car was a bit smarter than me with this matter. It knew about this problem and it's solution to it was to seize up its own clutch to keep me from driving it. While I later determined the clutch problem to have been caused by the previous owner's jury-rigging, crawling under the car to fix it allowed me to notice the problem with the TAB. For the time being, I re-tighened both bolts and my car is now in winter storage. I need new trailing arm bolts, and Toby, you can add me to your list of interested parties. Jim Reeve MNDMC - Minnesota DeLorean Club DMC-6960