Drivetrain: How To: Install CPP Rear Poly Trans Mount
#1
Senior Member
Thread Starter
How To: Install CPP Rear Poly Trans Mount
Estimated Time: 45-90 Minutes
Tools Required:
-Ratchet w/ 15mm and 19mm Sockets
-15mm and 19mm Wrenches
-Jack and Jackstands
-Hammer
-Flat Screwdrivers
Optional Tools:
-Air Ratchet
-Angle Grinder
Step 1
Raise car onto jackstands with jack
Step 2
Support Transmission with Jack (the engine and transmission should be raised about a half an inch from normal resting)
Step 3
Locate Mounting Points for Stock Rear Mount
Step 4
Remove Mounting Bolts from Stock mount (The 3 on bottom are 15mm, the one on side 19mm); Wiggle the mount free
Step 5
Use the screwdrivers to pry the stock insert out of the stock mount
Step 6
Trim the lip around one side of the poly mount with the angle grinder so it will fit into the mount. Use the screwdrivers to leverage it in, then pound it in with a hammer until it's all the way in.
Step 7
Installation is opposite of removal
Step 8
Enjoy the new vibes and response from engine and transmission
Step 9
Leave me positive rep by clicking here
Review
The addition of the second poly mount added about 25% more vibrations than just one, But now the engine has a much more solid feel to it when the transmission shifts. I haven't tried launching yet, but I'm sure I will see a good improvment on my 60' times.
Please remember that the installation of poly mounts won't really effect daily driving, as their real purpose is solely for racing or pushing the car beyond it's normal driving. The addition of poly mounts is best in applications where the user is running a highly modified car, and/or someone who is doing a lot of launching (ie drag racing).
Tools Required:
-Ratchet w/ 15mm and 19mm Sockets
-15mm and 19mm Wrenches
-Jack and Jackstands
-Hammer
-Flat Screwdrivers
Optional Tools:
-Air Ratchet
-Angle Grinder
Step 1
Raise car onto jackstands with jack
Step 2
Support Transmission with Jack (the engine and transmission should be raised about a half an inch from normal resting)
Step 3
Locate Mounting Points for Stock Rear Mount
Step 4
Remove Mounting Bolts from Stock mount (The 3 on bottom are 15mm, the one on side 19mm); Wiggle the mount free
Step 5
Use the screwdrivers to pry the stock insert out of the stock mount
Step 6
Trim the lip around one side of the poly mount with the angle grinder so it will fit into the mount. Use the screwdrivers to leverage it in, then pound it in with a hammer until it's all the way in.
Step 7
Installation is opposite of removal
Step 8
Enjoy the new vibes and response from engine and transmission
Step 9
Leave me positive rep by clicking here
Review
The addition of the second poly mount added about 25% more vibrations than just one, But now the engine has a much more solid feel to it when the transmission shifts. I haven't tried launching yet, but I'm sure I will see a good improvment on my 60' times.
Please remember that the installation of poly mounts won't really effect daily driving, as their real purpose is solely for racing or pushing the car beyond it's normal driving. The addition of poly mounts is best in applications where the user is running a highly modified car, and/or someone who is doing a lot of launching (ie drag racing).
Last edited by TommyP; 10-03-2012 at 12:42 PM.
#2
Senior Member
Join Date: 04-01-07
Location: Kansas City, MO
Posts: 652
Likes: 0
Received 0 Likes
on
0 Posts
I am planning on filling both of my lower mounts this weekend and I was wondering if you think I could support the motor and fill them both at the same time.
#4
Senior Member
iTrader: (1)
so there are two separate transmission mounts that have the same shape...so you can replace both...and how many engine mounts are there? excellent write up btw...i ordered my sportlines yesteday and these mounts will probably be next....i might get the spoiler as a graduation present first tho
#5
Senior Member
Thread Starter
Thanks, and good luck.
#6
Senior Member
Join Date: 04-01-07
Location: Kansas City, MO
Posts: 652
Likes: 0
Received 0 Likes
on
0 Posts
HackAbuse Do they vibrate your dash real bad? I just filled mine and when I leave a stop driving normal it wants to vibrate my dash like crazy and at idle the rear license plate vibrates real load. I am going to have to put some rubber bumpers under the rear plate.
#8
Senior Member
Thread Starter
My glove compartment rattles sometimes, but thats it
#10
Senior Member
Thread Starter
#12
Senior Member
Join Date: 11-14-05
Location: Dumont, NJ
Posts: 997
Likes: 0
Received 0 Likes
on
0 Posts
Why did you shave the one side? Is that a must. I wouldn't think they would make them like that if you had to shave off some of it. Is there a way to not do that?
#13
Senior Member
Thread Starter
#14
Senior Member
It fist the stock mount if you dont shave it hack. However you can trim it a bit if you are having a hardtime to putting it in. However you need to lube them mount up with some vas and use a vise. The mount might need to be cleaned up. However if you would like to save some time one of the lips can be ground down slightly to make the install easier.
#15
Senior Member
Join Date: 03-02-06
Location: Fleetwood, PA
Posts: 620
Likes: 0
Received 0 Likes
on
0 Posts
#17
Senior Member
#18
Senior Member
Join Date: 03-02-06
Location: Fleetwood, PA
Posts: 620
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the link. I'm just wondering what makes these mounts so much more expensive than say the Prothane mounts? Also are the front and reat bushings both identical?
#19
Senior Member
Thread Starter
Yes they are.
#21
Senior Member
Intro pricing is up and going on the new mounts. Check out the link.
https://www.cobaltss.net/forums//showthread.php?t=63699
https://www.cobaltss.net/forums//showthread.php?t=63699
#23
Senior Member
iTrader: (1)
hack...how in gods name did you manage to fit a socket wrench over that 18mm bolt? the best ive managed to do is get one onto the bolt, but theres no room to actually rotate the wrench and get it free...i cant even turn it so the wrench clicks once.... i dont suppose you can get back under the car and explain how you did it could you?
#25
Get low
Join Date: 03-29-06
Location: Crystal lake, IL
Posts: 3,476
Likes: 0
Received 0 Likes
on
0 Posts
hack...how in gods name did you manage to fit a socket wrench over that 18mm bolt? the best ive managed to do is get one onto the bolt, but theres no room to actually rotate the wrench and get it free...i cant even turn it so the wrench clicks once.... i dont suppose you can get back under the car and explain how you did it could you?
the wrench had to be handed up from the bottem.... im guessing ur talkign about the rear mount... i also had to remove the header but i have a pacesetter, its a bit longer