911Monty - To answer your questions, engine mount is < 3 yrs old, trans mounts replaced with semi-solid Wevo's less than 1 year ago. Suspension upgrade with last 2 years. Bolts were replaced during last two repairs of this system. This meant cutting the welds on those caps to insert new bolts. Welds on caps don't fail, the bolts do. I get what you are saying...fact is, this failure correlates to either spins or hitting something off track in the dirt. My bad that I didn't check this during this last track day. Could have determined what happened. If going off track meant the muffler hit something, well, maybe it's not meant to withstand that, but me going off yesterday was what I would call "mild". Dry surface, dirt...no ditches or divots or holes.
I'll take a pic of the lower mounts this weekend. This will be an important diagnosis.
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