
I changed the transmission mount today, as part of my one hour weekend project, ended up being two including cleaning up all the greasy mud that falls into the garage floor. The old mount was already severed, about 6 inches away from each other. This caused horrible vibration on drive w/ the brakes engaged, and during reverse. At Park some vibrations too. Since this cabby is automatic it was able to run, I used to own a 1985 w/ 5 speed and it would not shift if the tranny mount was broken, including taking other stuff with it.
Anyway the learning curve today, was how much jacking up the engine you would need to align the mount. So now the car is real smooth now, no more vibration, next time I would be 200% faster doing this job.