So it's all fixed! The hardy spicer on the rear propshaft was totally shot. Must've been like that the whole time I've owned the van. It drives like a dream now. Thanks for the replies. G.

Hi. My 4wd 2.5 Diesel Bongo has started to shudder, quite heavily, under acceleration. It is worse under load I.e up hills or with weight in the van. There is also a clunk when moving forward after reversing.
Any help would be great fully received.