The original Powerglide shifter won't work with more modern transmissions. The Powerglide and original shifter were specially designed to work with each other, and nothing else. Shiftworks solution is a new shifter that mounts to the floor of the car. It uses a rod linkage like the factory shifter and can be mounted flush with the floor for clearance under the console. Shiftworks recommends this version, which comes complete with all mounting hardware, rod linkage components, neutral safety/back-up light switch, and a black smoothie shift knob. Shiftworks' shifter is designed to function like and look like a factory shifter. It works with all Turbohydromatic GM transmissions. It has a 1/2 inch diameter stainless steel handle