Posted a while ago about this problem but had no replies, looking back I think I could have described it better, so going to have another go 
When I am driving along, and I take my foot off the accelerator, I get an unbalanced swaying motion/feeling, and the LR kind of jerks back and forth.
It feels like there is something spinning, which has a weight attached to the circumference that is spinning the other way and throws it off balance.
It stops after about 3-5 seconds but seems to assist in the engine breaking and slows it down a bit to fast in my opinion.
This doesn't happen if I let my foot off the accelerator and straight away press my clutch, which makes me think it's a gearbox or flywheel problem?
I could make a video tomorrow if that would help.
Thanks in advance!
When I am driving along, and I take my foot off the accelerator, I get an unbalanced swaying motion/feeling, and the LR kind of jerks back and forth.
It feels like there is something spinning, which has a weight attached to the circumference that is spinning the other way and throws it off balance.
It stops after about 3-5 seconds but seems to assist in the engine breaking and slows it down a bit to fast in my opinion.
This doesn't happen if I let my foot off the accelerator and straight away press my clutch, which makes me think it's a gearbox or flywheel problem?
I could make a video tomorrow if that would help.
Thanks in advance!