I have a BAD vibration and I think it is breaking out the collector donuts causing the headers and Y to vibrate together. I have an ES poly tranny mount, should I also get the ES poly motor mounts to keep everything poly and the same. I read about solid and the stock mounts, any difference in these, or what should I get? I think pep boys here has the black ES poly's. Thanks for all the help.
I need to fix the vibration before I loose some fillings.

 

Poly bushings and tranny mounts cause more vibration, that ES tranny mount did the same thing to my A4 back in the day when I had it. When getting the bushings, get the poly/rubber ones and there will be less vibration.

 

Is there such a thing as solid mounts and just stock mounts, or is there just one kind of mount for the LT1? Where would I find the rubber/poly mounts, Summit?
Thanks