I've asked about it before & I've had a looksie around the forums and I assume its my engine mount
knocking sound when I change gear when the cars cold
after the cars warm (or even sitting in the sun) the sounds gone
i took it to my mechanic, he took a look at my diff and engine mounts and said they are fine and of course I drove the car to him so it didn't make the knocking sound.
could it be anything else?
otherwise I'll probably just order a after market engine mount and get it installed