I had my half shaft bolts changed out for Accufabs on my own dime. Previously I had Ford's first replacement bolts put in. Never had a breakage but did the Accufab's as a precautionary measure. I called my local Ford dealer about the "customer satisfaction letter" and they are going to give me the new thicker washer and bolts fix from Ford. I'll keep them with my extra GT parts. I will give them the old Ford bolts that were taken out of the car in exchange. No offer to reimburse for my previous costs, but it was nominal since car was already getting oil change service, bumper delete etc. at my friend's garage. I don't trust dealerships and have been going to a private garage or do the work myself. I also recently changed out my warped front rotors and Ford won't reimburse me the parts cost, since I did the work myself even though it is a warranteed part.