Rear trailing arm bushing, aka RTAB
I swapped out the original equipment rear trailing arm bushing on my car for the BMW E46 M3 RTAB and added Vorshlag RTAB limiters.
I did the job with the help of the MIS RTAB tool.
If you do the job with the MIS tool, make sure to follow instructions and apply lubricating oil on the threaded rod. Without lubrication, you risk damaging the tool. And should you break the threaded rod, you can pick up 36″x7/16″ threaded rod, zinc, coarse from your local hardware store.