i am impressed with this help thread, i reckon it'll be soved in no time, well done fellas! think of it like this maybe... if you draw a straight line coming out of the back of your gearbox and a straight line out the front of your diff, you want the two to be running parallel. never touching and never getting closer or further away from each other. good luck ange!

and just check your front wheel bearings if you have time. i had the same problem as you describe and most of it was in the front wheel bearings would you believe!