It’s all expensive stuff mate, but it sounds like lots was changed at the same time and you end up chasing your tail with some of this stuff.
I can’t abide knocks or rattles. You’re a smart chap so maybe start methodically and work your way through.
Best of luck with whatever you decide.
Thanks mate, yeah Im less over whelmed with finding these sort of problems now because I have a better understanding of each system and what could be wrong. Still takes time..
Solid nylon rack bushes coming from france should be here this week.