DOUBT IT

iTrader: (13)

I have a Custom Shift Kit that hits extremely hard on the 1-2 shift. The other night at the track, I had on some ET Streets. On the 1-2 shift on one of my runs, I swear I heard a "clunk" and felt something hit the floorboard, my guess is the trans mount.

Question is, if I get under there Monday and see that it is the mount, should I replace it with a poly? I've already got poly motor mounts, and I don't know if I want any more vibration. Would a good replacement rubber mount hold up for a little while? I'm on a stock stall, BTW.

JNorris

iTrader: (4)

I used a poly mount for a few weeks and it vibrated too much for me. I am running the stocker now.


John

02 Pewter LS1

iTrader: (8)

I just put one in today because of my built tranny with the Transgo shift kit. It hits very hard between the shifts so I decided to try another one and it works just fine on this car. I had one on my stock LT1 when the tranny mount broke and took it off the same day so I guess it's a hit or miss. I think because of all the other suspension parts and loud exhaust hides the viberation feels much better on this car?

DOUBT IT

iTrader: (13)

As hard as you launch, how has it held up?

electricz28

don't waste the money, so much vibration that the knock sensors pulled toming.

sleeperstyle

iTrader: (4)

window weld- do a search on it-

my window welded stocker is PERFECT after sooooo many hard launches w/nittos.

minimal vibration, can be found at any auto paint store (it is used for putting car windshields in).

= costs 15$ and takes a couple days to dry...

i SWEAR the window weld thing should be a sticky. i don't see how anybody puts up with those poly mounts- i had mine for 2 days before i took it out.

JNorris

iTrader: (4)

It has been in there for 2 years and has held up well.

beardWS6

iTrader: (1)

With the poly it takes alittle while for it to loosen up. Mine was alittle tough at first, but doesn`t bother me at all. It will last longer for sure! I busted my stock mount right off. To much power with slicks!!

gator's 99TA

iTrader: (2)

for drag racing its a must.

for daily driving, tht would drive me insane.

2kta--89formula

iTrader: (2)

https://ls1tech.com/forums/new-ls1-owners-newbie-tech/303354-feel-vibration.html

10secopcar

if u can find a 1LE tranny mount from GM i have 1 n both my cars and they r great. They r just a harder durometer of rubber and 1 side is closed instead of both bn open

sleeperstyle

iTrader: (4)

window weld

juicedSS

iTrader: (18)

i have a hard shiftin tranny with poly motor mounts and transmission mounts and i feel every freekin vibration my car has

GregWS6&z28

iTrader: (8)

my Energy Suspension mount drives like a fat chick doing jumping jacks, it shakes everywhere. I believe mine also shakes so bad that it's detecting misfires and it causes my converter to randomly unlock sometimes

blacktransam

iTrader: (13)

you'll have to excuse me as that makes no sense to me at all.. you knock sensors are part of your motor.. tranny is bolted to motor.. common physics would tell you that if more vibration is transfered (absorbed) into the car less is done by the tranny.. either way.. if ur trannys causing enough vibration to cause knock you have a problem.. and its not your mount

Mike

electricz28

use the same mount-never a problem

Tiger2o69

iTrader: (16)

Put the poly moun on this weekend and did as people said w/ the cutting and washers and I couldnt feel a difference.

98boxer

iTrader: (7)

Did you take her over 100mph while pushing the car fast?

Tiger2o69

iTrader: (16)

I mean all the vibrations under normal driving. I dont go over 100 mph very much so if it feels bad up there ill be ok or are you talking about good qualities of it? im sure ill notice good things once I get on it more. letting the converter break in a bit b4 i get on it a lot. ie. drags or slicks.

Red 01SS

iTrader: (2)

I like mine