Originally Posted by wolffcub
Got it back in last night and took it out for a zip. The vibration is now gone at highway speeds and the whine is completely gone.

That's good news indeed! How well does it accelerate in 5th gear with your diff? You have a 0.73 overdrive gear and a 3.73 rear diff, right?

Originally Posted by wolffcub
Now something new has started to happen. When at high speed and the clutch is depressed i get a vibration. It not like the last vibration. It a lower frequency but very rough. It only happens when i push in the clutch and coast. It goes away when coasting down to 50 or below.

My only thought is the release bearing. I think that you'd feel the vibration in the pedal if it had anything to do with the mechanical clutch linkage. Check the engine mounts and bell mounts too. I'm stumped.

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