While the Lokar shift knob with its push button and shift pattern is a nice piece, it doesn't really fit the theme of the Chevy. However, Lokar has developed a shift knob adapter that allows the use of most aftermarket knobs with a 3/8-16 or 3/8-24 thread, or indeed anything that you can tap with these threads. It does lengthen the shifter by a couple of inches though. Once the jam nut and knob were removed, this new jam nut and inner sleeve were installed on the lever. Note the cable protruding from the top that allows gears to be selected. The slots in the sleeve (arrow) allow the outer adaptor to slide up and down to operate the cable.