So you you are putting an LS engine in your FC or FD, and like the badass you are you want to shift your own gears? Ronin can help you handle your stick. This is a Prothane polyurethane isolator that mounts between a T56 and our transmission mount. Works with most TR6060s as well, but you'll need an adapter piece sold by others. Other trans? Some research required, but GM used this style for a long time, so it's worth a look.
Polyurethane will last longer and allow less movement as compared to factory rubber - it improves the feeling of your stick. Works with either Ronin or Samberg mounting systems. Price shown includes polyurethane transmission isolator and hardware