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8644k18

not 80...but 94A!!! shore urethane casting compound

NOT IN A TUBE...this comes in a can with a primer bottle
This way it is a liquid and can sneak into every motor mount (Roll restricor) nook and cranny.

Its the stiffest stuff I could find, and its crazy stiff.

I was also told to use window weld or ESSEX which is what most OEM cars use for windows.

-Either one should be stiff...but for those who want the stiffest, this should do it. Also for those who dont know, its urethane you put in your motor mounts to firm up the engine movement/shifting/ etc.