Lokar Shifter Knob Adapter for 3/8-16 Knob is designed to adapt to most aftermarket shifter knobs. It can be used with any of Lokar's shifters. This continues with the same shift pattern and safety features that are found in Lokar's automatic shifter knobs. This includes the positive lock-out in park and neutral. The shifter adapter is designed with the common 3/8-16 Threads found in most aftermarket shifter knobs. It has been designed with hidden jam nuts for a flush mount against the shifter knob. It has a chromed finish that blends with the Lokar chromed shifter lever that gives you the desired clean look with a custom knob. It comes with complete installation instructions.