Biffdiff42

Hi Kwikfit have checked the tracking on my Octavia 2010 and rear wheels need adjustment which does not surprise me looking at the uneven ware on them. They then tried to make the adjustment but could not loosen the bolt of the suspension (lower swing arm, I think) to make the adjustment and advised that we should need to replace the whole lower swing arm in order to make the improvement. I believe that the bold the bolt sits in a rubber/nylon bush so it is not possible to apply heat. Are there are other way round this ?? Any advice or guidance would be much appreciated. Jonathan

I am replacing the engine mount at the back of the engine which links The gearbox to the body as it is worn out, do I also need to replace the bolts or can I re use the old ones if they are OK ?