Tranny Mount

Reply Subscribe

Thread Tools

Search this Thread

Feb 11, 2011 | 08:39 PM

RedLed

Thread Starter

Teching In

Joined: Apr 2010

Posts: 45

Likes: 0

Tranny Mount

So just swapped out my tranny mount on my 98 TA, took it out for a test drive and everything feels great. However when I punch it I feel this vibration coming from the rear. My question is this normal for poly mounts? Or is it something else that needs to be fixed?

Feb 11, 2011 | 08:50 PM

Chronicle

Launching!

iTrader: (7)

Joined: Jun 2008

Posts: 224

Likes: 0

From: Maryland

Do you still have your stock 10 bolt?

Feb 11, 2011 | 08:52 PM

KevinR

TECH Fanatic

Joined: Jan 2010

Posts: 1,219

Likes: 0

From: Euless Tx

I have a poly trans mount. I get a lot of vibration in the console, but nothing from the rear.

Feb 11, 2011 | 08:57 PM

RedLed

Thread Starter

Teching In

Joined: Apr 2010

Posts: 45

Likes: 0

Yes I still have a stock 10 bolt, Ive read the poly trans mount doesnt absorb as much shock, but I feel like something isnt right.

Feb 11, 2011 | 09:00 PM

got-a-ls1

TECH Fanatic

iTrader: (12)

Joined: Jun 2007

Posts: 1,438

Likes: 0

From: earth

the poly mount transmits everything. i hate mine but rubber just wont last.. im gonna try to go back to a rubber mount when i get my torque arm relocation cross member.

Feb 11, 2011 | 09:25 PM

bayer-z28

TECH Veteran

iTrader: (14)

Joined: Apr 2005

Posts: 4,085

Likes: 1

From: N. Falmouth MA

Never had a problem with mine. No real vibration.

Feb 12, 2011 | 12:27 AM

DWake

TECH Apprentice

iTrader: (1)

Joined: Aug 2010

Posts: 328

Likes: 0

From: NC

I have a poly mount and i get a vibration every now and then because my y pipe sits a little high and bangs on the floorboard, that problem will be fixed when it gets a little warmer outside

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Apr 16, 2011 | 04:10 PM

JRENIGAR

10 Second Club

iTrader: (37)

Joined: Dec 2010

Posts: 2,069

Likes: 2

From: 72396

Most mounts I have seen that were poly are a little bit taller than the stock one. This puts the driveline angle off and causes the vibration. Does it get worse at wot? If so thats the problem. I have heard someone makes the poly ones that are now the same height but dont know who they are.

Apr 16, 2011 | 04:18 PM

#10

sempire

TECH Apprentice

iTrader: (5)

Joined: Dec 2010

Posts: 386

Likes: 1

Would this cause any other issues except the vibration. I don't even think they can be groud down. Would have ES caught on to this by now?

Apr 16, 2011 | 04:47 PM

#11

HoLLo

TECH Junkie

iTrader: (17)

Joined: Aug 2006

Posts: 3,161

Likes: 0

From: Rapid City, SD

Vibrations from a poly trans mount go away after some mileage. Keep the poly on!

Apr 16, 2011 | 05:35 PM

#12

99WhiteKnight

On The Tree

iTrader: (7)

Joined: Jul 2005

Posts: 119

Likes: 0

From: NW Houston

does anyone know who makes the mount that is the same height as the stock one?

Apr 16, 2011 | 05:40 PM

#13

HoLLo

TECH Junkie

iTrader: (17)

Joined: Aug 2006

Posts: 3,161

Likes: 0

From: Rapid City, SD

Prothane

Apr 16, 2011 | 05:47 PM

#14

JRENIGAR

10 Second Club

iTrader: (37)

Joined: Dec 2010

Posts: 2,069

Likes: 2

From: 72396

Quote:

Originally Posted by HoLLo

Prothane

they might, I bought a energy susp ( the red one ) from the local parts store and it had horrible vibrations at wot. It was ok crusing, but WTF!!! at wot, felt like the damn trans was ready to fall out literally. I couldnt find any straight answers so I got another factory one.

Apr 16, 2011 | 05:59 PM

#15

HoLLo

TECH Junkie

iTrader: (17)

Joined: Aug 2006

Posts: 3,161

Likes: 0

From: Rapid City, SD

Quote:

Originally Posted by JRENIGAR

Prothane is factory size, I've had a couple on some cars. Seriously though, people give up too early on the poly mounts, after some mileage they soften up and the vibes completely go away. Definitely worth the mod because it holds the trans in freakin place.

Apr 16, 2011 | 06:09 PM

#16

JRENIGAR

10 Second Club

iTrader: (37)

Joined: Dec 2010

Posts: 2,069

Likes: 2

From: 72396

Quote:

Originally Posted by HoLLo

I believe what your sayin, I just wanted my car to drive right and thats why I went back factory. I did measure the energy one vs the new factory one and its 3/16 in taller without the factory one compressed by the trans. When my factory one goes I will try the prothane one since there motor mounts are on my car and work great.

Apr 16, 2011 | 06:20 PM

#17

99Bluz28

TECH Senior Member

iTrader: (35)

Joined: Nov 2007

Posts: 9,705

Likes: 12

From: C. V., Kalifornia

Easy solution, remove preload plate and grind/cut the preload bump down flat(ES trans mount), problem solved.
FYI, that's how I run my ES trans mount.

Apr 16, 2011 | 08:30 PM

#18

WS6tx

On The Tree

iTrader: (25)

Joined: Oct 2009

Posts: 142

Likes: 0

From: Fort Worth, TX

I jus saw on Spohn's website that they have one thats the same size as stock.

Apr 16, 2011 | 08:49 PM

#19

got-a-ls1

TECH Fanatic

iTrader: (12)

Joined: Jun 2007

Posts: 1,438

Likes: 0

From: earth

i have prothane. It hasnt softened up since the 4 years 30k miles since i installed it... Maybe people get used to it but not me... I bought prothane because it was SUPPOSED to be the softest of the urethane mounts. HA. now that i have my relocation cross memeber im going back to rubber mount! tired of the vibes.