the 10x45 bolt is what I see on the fiche....
did the p/o re-tap the engine where that bolt attaches, to M12 ..?
thats really a bummer if so... sounds like they jacked the thing, and stripped the bolthole during the install because they didn't allign it properly..
personally, if they did retap it, I'd consider finding the data for using a heli coil insert, and returning it to 'correct'. Check the actual threaded hole in the engine, then research the tap size they use for the helicoil insert, they sell them at AutoZone.