trans mount
Tech Contributor
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From: Howell Michigan
St. Jude Donor '09-'10-'11
Melting Slicks
Joined: Jun 2010
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From: Yorktown Virginia
Any thing that is stiffer than the factory mount and helps reduce side to side movement of the drive train is going to help reduce drive train shake. With that said the best way to eliminate the shake is with a Pfadt brace as it give a wider base which makes it more stable.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Any thing that is stiffer than the factory mount and helps reduce side to side movement of the drive train is going to help reduce drive train shake. With that said the best way to eliminate the shake is with a Pfadt brace as it give a wider base which makes it more stable.
Melting Slicks
Joined: Jun 2010
Posts: 2,809
Likes: 3
From: Yorktown Virginia
Also you cant just mount the diff to the cradle without something in between because of the way it is designed and I couldnt imagine the amount of harmonic vibrations you would get by doing so.
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Safety Car
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As has already been answered there is 1 transmission mount for the C5.
We offer a C5 Transmission Brace as well which will help mitigate power train shake, which can often be misdiagnosed with the Corvette as wheel hop. There have been some pretty in depth conversations on CorvetteForum over the years as to how our mount works. Through our own testing and the experience of hundreds of happy users we can definitely say that our C5 Transmission brace is an effective way to help with power train shake issues on the Corvette.
We offer a C5 Transmission Brace as well which will help mitigate power train shake, which can often be misdiagnosed with the Corvette as wheel hop. There have been some pretty in depth conversations on CorvetteForum over the years as to how our mount works. Through our own testing and the experience of hundreds of happy users we can definitely say that our C5 Transmission brace is an effective way to help with power train shake issues on the Corvette.
Melting Slicks
Joined: Jun 2010
Posts: 2,809
Likes: 3
From: Yorktown Virginia
I have not had any vibration at all with my mount, it did resonate at a very specific rpm for a little while after I installed it but that went away in a very short time. My guess is that it had to settle down kinda like suspension does after you jack your car up or lower it, also I could see there being a vibration if you do not shim the brace correctly and there is some slop between the poly mounts and the cradle.
Tech Contributor
Joined: May 2008
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From: Howell Michigan
St. Jude Donor '09-'10-'11
Melting Slicks
Joined: Jun 2010
Posts: 2,809
Likes: 3
From: Yorktown Virginia
Id love to see some pictures or assembly drawings of the rear diff and cradle of the race cars if you have any. Im not saying you are incorrect I just dont see how it would work.
Tech Contributor
Joined: May 2008
Posts: 2,843
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From: Howell Michigan
St. Jude Donor '09-'10-'11
Unless they are using a different cradle I dont see how you can just bolt the diff to the rear cradle as there is about 3 inches in between the two as it sits now. Another thing is they are race cars not intended for street driving and dont care about vibrations or noise.
Id love to see some pictures or assembly drawings of the rear diff and cradle of the race cars if you have any. Im not saying you are incorrect I just dont see how it would work.
Id love to see some pictures or assembly drawings of the rear diff and cradle of the race cars if you have any. Im not saying you are incorrect I just dont see how it would work.
In the application I sited in the earlier post, there is no cradle. There is a frame front to rear that the engine and drivetrain are hard mounted. No elastomers involved.
Melting Slicks
Joined: Jun 2010
Posts: 2,809
Likes: 3
From: Yorktown Virginia
My whole point of my brief comments, there is more to designing a mount than most folks appreciate. It is ALWAYS a compromising endeavor. As far as Pratt & Miller, their priority list I’m sure has WINNING at the top. With that in mind I expect durability to be second followed closely by mass. I’m confident that the vibration transfer function is on the list too. I would expect to find noise at the bottom. When designing a mount, the priorities depend on the use. Buying a pre-made bolt-on mount is NO guarantee it will work for your intended use or the results will be the same on all vehicles.
In the application I sited in the earlier post, there is no cradle. There is a frame front to rear that the engine and drivetrain are hard mounted. No elastomers involved.
In the application I sited in the earlier post, there is no cradle. There is a frame front to rear that the engine and drivetrain are hard mounted. No elastomers involved.
I guess I was heading in the right direction saying that the stiffer the mount the more advantageous it is as hey dont use anything on the race cars.
