Frank writes:
>but the bolts at the rear would be  almost impossible to do that due to space restrictions and that's the same  reason that if those ones break off, the next best thing is to drop the  engine.  No way you can go there with a drill to drill out the broken studs  & bolts.

Jeff writes:
I did it last summer WITHOUT pulling the engine although I had to drop it about 8 inches careful of lines, hoses and wiring to gain access to drill out and helicoil new threads.  Gotta remove muffler, loosen bolts and move heat shield up and wrangle the engine support bar a little but it can be done.

JB