hi i have had a horrid thumping noise coming from the front of my zafira 2002 model at first i thought it was engine i done some tests an it is not i had it up on axel stands today and checked some more things out with the passenger front wheel off i started the engine in neutral and i could see that the passenger side brake disc was turning on tick over i could hear the noise and started to try and identify where it was coming i dont know why but i grabbed the driveshaft to see if i could stop it (the driveshaft) and i did but to be more amazed i had stop the horrid thumping noise to any ideas on thios please guys as i know nothing about this