Passenger side motor mount bolts break, engine drops into CV joints

[SuperStockAMX]

Went over a speed bump s-l-o-w-l-y as I had wife and kids in the car (SVTF '03). On the backside of the bump I hear a "thunk" moved forward and could hear the CV joint was blown out. As I have not had an axle problem, I couldn't figure that out. Of course it was in a parking lot at night. Two-and-a-half frickin' hours later the tow truck comes. Delivered to shop. Ordered a new right side axle from CFM ($350, not a bad price an d in stock). Decided to get the 22mm / 25mm Eibach sway bars while I was at it :)
Next day took a closer look. Yes the inner joint was wiped out. Then we noticed the culprit. BOTH studs for motor mount to timing cover were sheared off! Engine was dropped at least 4" which crashed into the axle.
Is this a freak or common? These were FOMOCO studs. Is there a grade 8 available?
By the way; the new sway bars are awesome!!! I have Adjustable Koni's, The Eibach bars, Michelin Pilot SuperSports (225x45x17) and replacement SVT springs. I took it through my "test course" and it sticks much better but I now see it will spin in sweeping turns like it never did before. But I'm still going alot faster. TC was off.

[Sponsor]

[pasta]

wow glad family ok

never heard of that happening

[sleepyboy]

Wow that is crazy I've never heard of that happening before either. Have you had the timing belt replaced recently? Maybe who ever worked on it didn't screw the stud in all the way? That's the only way I could think of that happening.

[FullthrottleSVT]

ive heard that the toque on the svtf motor mounts are very sensitive. If they were over tightened (i believe those studs are like 40nm) then that could have been the reason

[amc49]

I used to work on someone's SSAMX back in the mid '70s, I loved the crossram 2X4 bbl. setup on that car.