I have had 2 Razo shifter knobs now. The first was a pistol grip type which you had to push down a thumb button to unlock for shifting, but the O/D button rattled so I replaced it. The new one I have now is a smaller type which you have to push down the whole knob to unlock for shifting. Both worked great but took a small bit of modding to get to fit. I dont recall which model #s they are, but they both work.

Just remember, just because they are advertised as universal, it does not mean some minor fabrication is not needed. The major modding you may need to do is breaking the spotwelds on the square pipe housing that covers the shift cylinder shaft. Most knobs are made for a cylindrical shifter and not the sqaure one we have.