My 2003 2.0 JTD has a tendency to wander when accelerating! When driving normally, the steering wheels normally requires about 1 inch of left hand down to keep her straight and level, however when accelerating I need to remove this 1 inch or travel on the steering wheel or the van will veer to the left! When i stop accelerating again I need to put in the 1 inch of left hand travel to keep her straight???

My guess is a bush is worn on the suspension somewhere, but thought I'd ask here first to get a better indication?

Front bushes on the wishbone are most lightly culprit they're only £3.28 each from here:
http://www.europarts-motorfactors.com

if the springs are crunching when you turn her, its the universal bearing on the top of the front suspension springs- they are way too light for job abd sieze regularly.

No spring crunching, just wandering!!

Those front bushings are like butter hence the cheap price. A crowbar will demonstrate nicely.

Looks like they're the boys! Is that a big job to do on a trolley jack & axle stands?