Front end vibration

[GrahamJ]

Recently acquired a magnificent specimen of this car with 58,000 on the clock.

Drives superbly but for a niggle. I get a feeling of a vibration through the steering wheel which intensifies if accellerating hard up hill. Under normal conditions it has a slight vibration feel through the steering wheel but no adverse noise. Have checked out the wheels and all balanced correctly. Could it be drive shafts that are out of balance and if so what's the remedy?.