How do I remove the rear subframe?
Carefully! No seriously, take your time removing the rear subframe as it can be a right pain to remove. The back of the car gets covered in all the road crud thrown up by the rear wheels. It gets everywhere in every nook and cranny, and that damp muck starts to eat away at the metal, rotting your subframe, the nuts and bolts and all the fixings. I wrote quite a few pages about removing the rear subframe starting with removing the old rear subframe, then overhauling the radius arms, followed by fitting a new rear subframe and new suspension and brake hoses. If I can pass on a few words of wisdom regarding replacing your rear subframe, it would be to take your time removing the old one, and when it comes to fitting the new one, copper-slip the bolts and paint and underseal the subframe to protect it as much as possible from stones and crud. Trust me, it will last longer if you take your time treating it to a few coats of hammerite followed by a rubbery underseal.