Noise through steering wheel

[Howm58]

Hi Guys,
Wow, interesting thread.
My coupe has now done 122,000 miles & I have gone through the car fairly thoroughly to remove rust, sort out mechanical issues & generally tighten it up.
One problem that persists is the 'shunt' in the drivetrain. New clutch & flywheel, prop centre bearing haven't made much difference. Polyurethane bushes in the rear subframe have increased noise levels & added a little harshness to the rear of the car. However my boot floor is currently intact & the new bushes will help keep it that way, & the handling now is pin sharp (ask anyone who has changed them) so not going back to the rubber. No excessive play seems to exist in the gearbox, diff & driveshafts but the annoying 'clunk' persists.
I was beginning to resign myself to developing the 'driving technique' that disguises the problem.
Never thought of the engine mounts contributing to this, certainly with my mileage its a possibility.
Now I know what my next job is going to be