Dropping the rear end out, what should I replace??
 

I need to get new rear subframe bushings put in this winter, and I'm wondering what else you guys would recommend replacing or doing while the rear end it is out.

As a little background on the car, it has had an S52 swap, and is running a ground control suspension all around. It is a track only car and will likely be stripped and caged in the next couple years, so I'm looking for performance and also preventative maintenance.

Right now I'm planning on replacing the subframe bushings, trailing arm bushings and maybe the diff bushings...what else? What chasis reinforcement would you guys recommend?

Thanks!