Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Solid motor mounts! Please read!

Thread Tools
 
Search this Thread
 
Old Jul 13, 2010 | 12:39 AM
  #1  
BFarrier's Avatar
Thread Starter
Launching!
 
Joined: Feb 2010
Posts: 235
Likes: 0
From: Gilroy, CA
Default Solid motor mounts! Please read!

so i just ordered solid MM and poly Trans like i been told and read you run poly poly or solid poly never solid solid on these cars. now my torque arm i have relocated because im running a short t/a does that mean i can run solid solid for engine and trans or stick with the solid poly? need advise parts will be in friday.
Reply
Old Jul 13, 2010 | 01:07 AM
  #2  
98RedBird's Avatar
TECH Addict
iTrader: (77)
 
Joined: May 2005
Posts: 2,773
Likes: 3
From: Peoria, IL
Default

Just run the solid/poly. I really see no point in running a solid trans mount.... I didn't even know they made one to be honest.
Reply
Old Jul 13, 2010 | 01:18 AM
  #3  
BFarrier's Avatar
Thread Starter
Launching!
 
Joined: Feb 2010
Posts: 235
Likes: 0
From: Gilroy, CA
Default

yeah i dont think they made one either i dont know if they do but i know i can fab one up at the machine shop i didnt know they just wanted the poly because originally the torque are was mounted on the tail shaft
Reply
Old Jul 13, 2010 | 05:09 AM
  #4  
Cobras_Rule's Avatar
Staging Lane
iTrader: (4)
 
Joined: Oct 2004
Posts: 90
Likes: 0
From: SmogNazi CA
Default

I would just go with a solid/poly mount just cuz the poly tranny mount is 25 bucks... why go through the hassle of fabbin a solid mount that wont do anything more of a noticeable difference then a poly. Im runnin solid/poly and it works fine.
Reply
Old Jul 15, 2010 | 11:43 PM
  #5  
1FastBrick's Avatar
TECH Senior Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (16)
 
Joined: Apr 2007
Posts: 9,760
Likes: 656
From: JunkYard
Default

Originally Posted by BFarrier
so i just ordered solid MM and poly Trans like i been told and read you run poly poly or solid poly never solid solid on these cars. now my torque arm i have relocated because im running a short t/a does that mean i can run solid solid for engine and trans or stick with the solid poly? need advise parts will be in friday.
The reason not to run a solid mount on the tranny is because of chassis flex. Alot of people have actually snaped the transmission case as a result of chassis flex when running all solid mounts.

Run the solid up front and poly at the trans and you will be fine.
Reply
Old Jul 15, 2010 | 11:57 PM
  #6  
X-ray's Avatar
TECH Enthusiast
iTrader: (6)
 
Joined: Apr 2010
Posts: 548
Likes: 1
From: Harrisburg, PA
Default

I'm having solid MMs installed but I'm leaving the tranny mount stock rubber. It seems a number of people with a poly trans mount get bad vibrations. There's no harm in running a stock rubber trans mount with poly or solid motor mounts.

So the answer to your question is no, you don't want to run a solid trans mount, even they even exist. Never heard of them myself. You don't even need the poly trans mount.

Last edited by X-ray; Jul 16, 2010 at 12:10 AM.
Reply
Old Jul 16, 2010 | 12:01 AM
  #7  
1FastBrick's Avatar
TECH Senior Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (16)
 
Joined: Apr 2007
Posts: 9,760
Likes: 656
From: JunkYard
Default

Originally Posted by 1FastBrick
The reason not to run a solid mount on the tranny is because of chassis flex. Alot of people have actually snaped the transmission case as a result of chassis flex when running all solid mounts.

Run the solid up front and poly at the trans and you will be fine.
Usually the poly has a safety built in if it was to ever tear apart. But I Personally have never seen a stock one brake unless it was soaked in tranny fluid or if the exahust was to close to the mount.
Reply
Old Jul 16, 2010 | 12:08 AM
  #8  
Soul Crusher's Avatar
Launching!
 
Joined: Sep 2007
Posts: 230
Likes: 0
From: Surrey, BC
Default

I've got a poly trans mount and the stock engine mounts (for now) no extra noise/vibration from the poly trans mount.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

 Michael S. Palmer
story-1

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-2

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-3

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-4

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Pouria Savadkouei
story-7

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

 Verdad Gallardo
story-8

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-9

Top 10 Most Powerful Chevy Trucks Ever Made!

 
Old Jul 16, 2010 | 12:11 AM
  #9  
areax's Avatar
On The Tree
15 Year Member
 
Joined: Apr 2007
Posts: 107
Likes: 0
From: Kentucky
Default

This is a little off topic, but I have broke 2 factory trans mounts on my stock 99 z28 a4.. I did beat on the car a lot though during that period of time.. but I replaced the trans mount with the same factory mount 3rd time around and it is still doing fine (I haven't beat on the car as much though).

I agree though, poly trans mount should serve the purpose fine.


Originally Posted by 1FastBrick
Usually the poly has a safety built in if it was to ever tear apart. But I Personally have never seen a stock one brake unless it was soaked in tranny fluid or if the exahust was to close to the mount.
Reply
Old Jul 16, 2010 | 01:52 AM
  #10  
86zcamaro's Avatar
On The Tree
iTrader: (8)
 
Joined: Apr 2010
Posts: 165
Likes: 0
From: Independence MO
Default

Supposedly my trans mount is torn and has been since I basically got the car, I bought a new one but the car drives fine and ive run it at the track without problems, so I dont see a reason to change it for now.

When i can get it done for free at the votech I went to this fall I probably will let them do that, shocks and springs.
Reply




All times are GMT -5. The time now is 02:48 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-6
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-7
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-8
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-9
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE