Shifter vibration/noise?

[Dr_Thompson]

I just recently picked up a 92 sho. The tranny grinded so the within the first couple of days i replaced the tranny and clutch.Tranny shifts beautifuly but when i come to a sudden stop, brake hard, or hard shift down to 1st,2nd, or 3rd gear the shifter will vibrate and feels like pressures being put on it. it also gives off a low hum noise which im not likeing either. I didnt run across this with my last sho but it had a cable setup.i did a search on it and im guessing some of the bushings on the rod shifter linkage might be shot. I was also wondering if it would have anything to do with a worn motor mount.when replacing the tranny i noticed the mount was worn but had no money to repair it. oh so i was wondering if you guys got any ideas. Thanks in advance!!!

 

[NotSoSlowSHO]

There are a few probably causes.

The first that I would suspect is a torn rear motor mount.
Other possibles include bad sub frame bushings and overtigntened rod shifter bolts (where the black box slides).

 

[Dr_Thompson]

im pretty sure the rear motor mount was fine, it was the front one that was ripped. As far as over tourqeing the bolts for the shifter i couldnt tell ya. The subframe bushings were in good condition, not enough to cause a problem. I was thinking however could the shifter problem be due to an unaligned subframe. I havnt gotten the subframe alligned since the tranny change. Just a guess shrug