I installed a poly trans. mont from energy suspetions and had a very bad vibrations in the car .I can fill the road into the car.Any one have the same experience?Any solution different than going back to the factory one? Thanks

 

1LE tranny mount...harder durometer rubber than stock and is the only option in between the stocker and the poly bushing. Costs about $20

 

You could try to put one washer in between the trans cross member and the floor of the car. This lowers the rear of the trans a little. I noticed when I did my swap the poly mount was a little thicker then the stock which basically raised the rear of the trans. The washer trick took care of most of my vibration.

 

buy the 1LE from SLP

 

Get the Prothane one. You just bolt it in. No wondering if you should use a plate or shaving down anything.

 

You think that is bad, dont ever buy poly motor mounts..

 

"You think that is bad, dont ever buy poly motor
mounts"

I disagree - best mod I've done to date for my H/C car. Took all the shaking out of the interior of the car.

I also have the poly torque arm mount ( via a R/T torque arm ) as well as the ES poly tranny mount with no plate and shaved nubs.

 

I got some vibrations when I went to poly. It makes me nervous because all I hear is how weak the A4 is and everytime I feel the vibrations I think to myself is my transmission about to go out?

 

I run a Prothane one and the first time I installed it the noise was bad.Took it out in an hour.Then I broke the stock one and had to reinstall it.After a couple weeks it was alot better(break in)but now I have a SPOHN torque arm,that brings noise in the car bad.

 

i heard it on mine too, dont worry you will get used to it in no time, i cant tell now and im about to do poly motor mounts....that will complete it all poly on the suspension now and i would never go back...

 

I heard that GM Disconiued the 1LE Mount

 

Yes that rigth Gm decontinued the 1le trans mount for ever!!!

 

That s*cks, why on earth would they do that? That mount was the perfect replacement. They should have discontinued the stock piece of cr*p. If i had known that i would have bought a couple. GM

 

Get the 01/02 trans mount, it's a 1LE. (If I remember correctly)

 

At idle I get the noise, but that is it.

Sure is better than the tranny tunnel getting slammed by the tranny with that stock piece of crap. It was a 01 mount as well. No good there. The poly has fixed all that!

 

That's becuase it was the standard mount in the 2001 & 2002's

 

I installed the ES poly mount today.Additional vibration is present in 3rd gear @ 2,000rpm. I took WILWAXU's advice and ground the preload bumps off with a bench grinder before install.

 

"That's becuase it was the standard mount in the 2001 & 2002's"

I most recently went to the local Chevy Dealer parts department ( ), and asked to see the stock mount for my 2001 Z28. When he gave me the part, I was easily able to squeeze the rubber between my thumb, and index finger, it was that soft. The dealer wanted $125 for the part.

I purchased the "Prothane" trans mount for $24.95, and will have it installed next month.

SteveC

 

whats the difference between prothance and poly?
why do you have to mod the poly?
what happens if you dont?

i may get an ES
my trans mount is cracked in half, held together by the trans itself.
i got three washers that make the trans wanna come up from under the shifter during the ol' 1-2

 

The Energy Suspension and Prothane are both "poly" trans mounts. They are nearly identical.