Gearbox/drive shaft clunk Options

[Euphoria]

Hey, I've had a fair few clunks that have come and gone since I've owned this car but I've had this clunk for a long while and it is getting extremely frustrating, everytime you lift off in a low gear, put your foot down or just make the car misfire the whole front end has a very loud clunk noise, almost like something under there isn't tight, like a loose engine mount, only everything is and I've literally checked every suspension/cross member and engine mount bolt.

both bearings have been done recently and are problem free, struts and springs were done a couple years back and all bushings seem to be fine.

I can see it possibly being the driveshafts as they have never been changed, only the boots have been changed but they are showing no signs of play or noise when the wheel is moved whilst jacked up, this is also making it not seem like gearbox.

I have noticed when the car is jacked up I can move the driver side spring and it makes a clunk type noise, where as the other side doesnt and either does any other car I've looked at.

How loud can a bad strut mount clunk? also is there any other ways to determine what is wrong?

Thanks.

[Euphoria]

I thought I'd bring this back from the dead as it would help people, mean while I bought a new transmission and had it sitting there until the one in the car died (I was 90% sure it was the tranny as I heard it make noises whilst jacked up) anyway today I had to do the inner cv as the boot was split, I took it apart and it had barely any grease (only been split for a couple weeks) the grease that was left was all dried up and hard and the bearings didn't slide smoothly, I cleaned it up with degreaser then regreased it all and put it back together and guess what! clunk completely gone. /facepalm.

This post has been edited by Euphoria: Jan 4, 2011 - 5:59 AM