One of the old transmission mount bracket bolts is what broke yesterday, so I decided to replace all of them. I got lucky with a drill bit—the broken bolt came out pretty quickly. I also needed vacuum hose to replace a bit that broke during the engine install, and I'm leaving town Thursday so I couldn't wait for shipping and had to pay dealer prices. That would be $67 for six bolts and a foot of hose. I have to go back tomorrow, too, since I somehow only have half as many exhaust nuts as I need.