Just an FYI for those changing trans mounts. I replaced mine with a new urethane and found I couldn't shift to reverse. The height of the new mount must be a shade more than the old and throws off the linkage/trans setup. I was able to remove a bracket from the original exhaust) that was between the mount and trans and that lower things just enough.
This drove me crazy until I figured it out. I'm at the end of a five month project on the car and want to drive it now not wrench on it!