trans brace preference?
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
trans brace preference?
Hi Guys,
I'm looking at the Pfadt trans brace for my 99, but I'm a little concerned about the potential for vibration/noise issues. Mine seems to have a fair amount of transaxle shake if you get on it hard and so far this is the only brace I've found that addresses that issue.
My 99 is my DD and I've been putting over 2K miles on it each month. It is NOT a race car, but I do auto-x it and drive "spirited".
Any personal experience with this would be greatly appreciated.
I'm looking at the Pfadt trans brace for my 99, but I'm a little concerned about the potential for vibration/noise issues. Mine seems to have a fair amount of transaxle shake if you get on it hard and so far this is the only brace I've found that addresses that issue.
My 99 is my DD and I've been putting over 2K miles on it each month. It is NOT a race car, but I do auto-x it and drive "spirited".
Any personal experience with this would be greatly appreciated.
Le Mans Master
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
Perhaps the only thing needed is a professional inspection of all your
suspension components.
As in shocks,springs, tie rods, ball joints, sway bars, bushings & loose/improper torque of nut/bolts, have every thing gone over by a pro in your area.
If things are right on your car, there should be no shimmy/shaking or any thing of that nature.
With all the the known GM & aftermarket parts to install on your car, it should be as stable & tight (suspension wise) as a new 04.
suspension components.
As in shocks,springs, tie rods, ball joints, sway bars, bushings & loose/improper torque of nut/bolts, have every thing gone over by a pro in your area.
If things are right on your car, there should be no shimmy/shaking or any thing of that nature.
With all the the known GM & aftermarket parts to install on your car, it should be as stable & tight (suspension wise) as a new 04.
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
FWIW: I had the PFADT in my car for about a week before I decided that I couldn't take the "transmitted" vibration any more. I installed LG GT2 coilovers and PFADT sway bars and my wheel hop dissapeared. I also run an ECS tranny brace for some insurance on the cases. 
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
Ah, interesting observation. It's rained almost every day since I did the C6Z06 shocks and metal end links, so I'll wait till dry weather and see how it drives.
Thanks for the feedback on the "transmitted" vibration
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
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Safety Car
Joined: Jun 2009
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From: Frederick, Maryland
Um Im pretty sure the ECS Brace and the Pfadt brace serve a different purpose. I can link the thread where ECS even says it but basically ECS brace strengthens the "joint" of the trans and Diff, Pfadt brace works to eliminate what is mistaken for wheel hop and is actually drivetrain "slop"
Hope that clears anything up for ya Marc
Hope that clears anything up for ya Marc
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
Um Im pretty sure the ECS Brace and the Pfadt brace serve a different purpose. I can link the thread where ECS even says it but basically ECS brace strengthens the "joint" of the trans and Diff, Pfadt brace works to eliminate what is mistaken for wheel hop and is actually drivetrain "slop"
Hope that clears anything up for ya Marc
Hope that clears anything up for ya Marc
Melting Slicks
Joined: Jun 2007
Posts: 2,543
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From: Toronto Ontario
St. Jude Donor '08
[QUOTE=powerjunky;1577145756]Um Im pretty sure the ECS Brace and the Pfadt brace serve a different purpose. I can link the thread where ECS even says it but basically ECS brace strengthens the "joint" of the trans and Diff, Pfadt brace works to eliminate what is mistaken for wheel hop and is actually drivetrain "slop"
I have both the ECS diff Brace and the Phadt trans brace on my C5. I must be fortunate as I get no vibration transmitted as others have experienced. The car feels solid when shifting with no vibration or the dreaded wheel hop.....
I have both the ECS diff Brace and the Phadt trans brace on my C5. I must be fortunate as I get no vibration transmitted as others have experienced. The car feels solid when shifting with no vibration or the dreaded wheel hop.....
Burning Brakes
Joined: Jul 2008
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From: Bellevue Ky.
2020 C5 of the Year Finalist - Modified
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I would do the Pfadt tranny and motor mounts together. If you just install the tranny brace, you are taking the slight movement the stock trans mount allowed and causing a little more vibration up front.
Thread Starter
Le Mans Master
Joined: Nov 2009
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From: Bangkok, Thailand
I was thinking about that last night. I'll call Pfadt before I buy to see what they suggest.
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Um Im pretty sure the ECS Brace and the Pfadt brace serve a different purpose. I can link the thread where ECS even says it but basically ECS brace strengthens the "joint" of the trans and Diff, Pfadt brace works to eliminate what is mistaken for wheel hop and is actually drivetrain "slop"
Hope that clears anything up for ya Marc
Hope that clears anything up for ya Marc
Correct, the Pfadt brace is mainly designed for taking up the side to side sliding of the whole drive train while cornering since it sits on a small center mount from the factory. The Pfadt mount distributes it better. Our mount strenthens the connection between the trans and rear where it is common to break from wheel hop or hard launches.
We also have most Pfadt products in stock at great pricing if necessary.
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From: keego harbor mi
tbrace
So the ECS brace will strengthen the joint between the trans and the diff, decreasing the likely fracture from excessive wheel hop. And the Pfadt would eliminate the wheel hop that causes case fracture? I can deal with NVH if the pfadt actually does remove the wheel hop. Is anyone running the Pfadt trans brace with stock suspension parts? Please chime in.
Le Mans Master
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
So the ECS brace will strengthen the joint between the trans and the diff, decreasing the likely fracture from excessive wheel hop. And the Pfadt would eliminate the wheel hop that causes case fracture? I can deal with NVH if the pfadt actually does remove the wheel hop. Is anyone running the Pfadt trans brace with stock suspension parts? Please chime in.
Tranny/rear diff brace stradles (sides)the two coponents.(keeps carnage to a minumum)