Andy, I had a similar problem that my engine mount studs seized into the aluminum crankcase flange. When I tried to loosen the nuts, they sheared right off. Upon closer inspection, I noticed that one of the bolts had corroded so badly, that it had swelled and cracked the aluminum the length of the mount! I debated whether or not to try to drive it out and weld up the crack, but decided the only way to repair it correctly was to replace the entire crankcase. Fortunately I found someone on this list that had a used one available for sale. I know this doesn't offer an easy solution to your problem, but I just wanted to you to know you're not the first one to experience this. Steve Stankiewicz VIN 2650 ("Project Delorean") www.angelfire.com/md2/projectdelorean [Non-text portions of this message have been removed]