anyways. i just put in a polyurathane mount in and got rid of the rubber mount. resposiveness is great but just on lil problem (this is if you had your maro long enough to noitce that lil noise) but at those deep loud 2nd and 1st gear growls i get this wicked vibration in the chassis.
now is this cause it's loose or because it's the mount. i do like it a lil but it gets annoying and when i get up for work and want a nice ride in and the vibrations annoy the **** out of me and i want to get rid of it. but if it is just b/c of the mount i'm keeping it. any in put or am i just obsessing about lil ****.

 

If you used an Energy Suspensions mount, make sure you leave the spacer plate out.

Frank
CPT

 

Pretty typical/common problem after installing a poly tranny mount . I got sick of it and put back my factory LS1 mount .

 

Thats one of the pitfalls of polyurethane material. From what I've heard, if you use poly motor mounts as well along with the poly trans mount, the vibrations are not as noticable.

 

what he said