Hi This is my first post.... I recently purchased a 1992 300zx TT. Great car but for the vibration at 40+ mph. The vibration is felt through the seat rather than the steering wheel and is at its worst from cold.
I've replaced the propshaft centre bearing and had the universal joints repaired. The prop has been balanced and the gerbox mount replaced.
It still vibrates, I've tried different wheels, no joy. I'm going to try 4 wheel alignment next but , assuming this doesn't work
does anyone have any ideas?
Thanks