Progress Thread 95 2-Top Cobra Build Thread- Never ending

Essn95 said:

Any difference in the polymounts over rubber really?

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You won’t notice any differences with vibrations or sound. There’s pretty much no downside to the poly mounts.

It’s not a bad idea to just toss in a new poly trans mount too since you’re already in the neighborhood

Yeah, it wont hurt anything.

*Sigh*
If there was no NVH penalty to use a poly mount, you'd think that the OEM would use them in the first place.

The factory uses rubber because it is a better insulator against drivetrain vibration that would otherwise be transferred into the chassis.
If the reasons for going to a poly mount are to restrict movement of the drivetrain, you'll feel the difference when comparing it against the factory mount.

And....restrict the engine's movement and allow the transmission to move and you risk case breakage. Even more so if it was a poly mounted trans, and a rubber mounted engine.

Fox Guys don't notice any added harshness when they go to a poly mount, because the old mounts were more than likely shot when they decided to upgrade.