Thanks for the advice mate, will do exactly this, need to drive down to the local indistral estate and find a quiet place to do it, only got a gravel driveway here and can't get the car up here. Silly question but are the CV joints only on the front, not the rear?
As I said, I am not familiar with the D4 or the D3 @gstuart is though.
Generally speaking constant velocity joints are used on front-wheel drive vehiclesand nowadays on some 4x4s as they maintain the speed of both the wheel and the driveshaft even when the wheel is turned to full lock.
See:

 

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