This new gear shift knob is a lot sleeker than other economy styles. Instead of an ugly top insert that wiggles loose or can be hard to remove when it’s time for a new knob, this style uses a allen screw to fit down over the manifold and inner mechanics. The top is a completely smooth, single piece. It’s easy to install and looks a million times better than cheaper versions. As an added bonus, these knobs will fit any year model Eaton Fuller Transmission. Usually, a D-shaped knob won’t work with a newer slope style, but the unique nature of these knobs makes it possible.