Okay, carried on and prised out the Bush, it had to come out one way or another, and with that out the sub frame was lowered and the Arm came out. Old Bush off, new one on, well on once I spent a long time cleaning the inside of it out of over-rubberisation (note to self - do not but cheap eBay replacement parts), and now all back together . Now to address the other thing it failed on, smoky engine bay .