Vibration

[Anker]

You don't mention replacing tires after getting the various other parts and repairs. The tires may have been worn unenvenly which no amount of balancing can fix.

[BYprodriver]

Originally Posted by Anker

You don't mention replacing tires after getting the various other parts and repairs. The tires may have been worn unenvenly which no amount of balancing can fix.

Treadwear does not affect ride smoothness unless it is extremely severe. Enough to make noise.

[78F350]

Just a guess since nobody else mentioned it yet: Flywheel? Stock or light weight? I have heard of some vibration issues with the lwfw.
Is it actually worst 90 mph, or is it an RPM range?

[AZ986S]

Originally Posted by 78F350

Just a guess since nobody else mentioned it yet: Flywheel? Stock or light weight? I have heard of some vibration issues with the lwfw.
Is it actually worst 90 mph, or is it an RPM range?

Stock flywheel (that I know of...). I haven't replaced it, but had cluth, IMS, RMS replaced and my mechanic said flywheel looked good.

I get progressively worse and you increase speed from 75 mph to 100+.
Mostly steering wheel, but you also feel it in the floor.