Cheers, i have done a bit of reasearch on this and am getting a lot of different answers. main ones being, a common problem is the donught that connects the prop shaft to the gearbox, had it on the ramp today and this looks new, some people are saying it a normal clunk, and also heard it could be the rear diff bushings/mounts. I may start off getting trans fluid and diff fluid changed, if this dont work maybe look at getting the diff bushing replaced?