I got tired of breaking the cheapo stockers and the poor quality of the aftermarket ones. Made from 6061T-6 extra beefy at the threads (I have had the stock ones strip). Set screws are included. Being these are not rubber they can cause vibration in your shifter, it is a trade off having a solid bullet proof coupler. Having said that when I installed one in my car I saw zero change in shifter vibration so I guess it depends on how well your trans is mounted.
Fits bugs up to 64, and buses up to 67.