b&m universal shift knobs work great, they thread to the specific shifter, never had any problem...cept now, theres no thread since i shortened it and cant find a die that big
ssinserts had a nice chrome/carbon fiber shifter, and it had "universal threading" bushings. A great concept, except the fittings were frikkin plastic! After I torqued it down the metal threads on the Celi's shifter owned the plastic threads. I ended up throwing te $50 knob into the woods after it came completely apart from all the torqueing.
I advised the sllers that the plastic was poorly conceived and engineered, and they denied it was plastic! WTF!! Whatever you call it, it's mega-softer than metal, and the metal won!