5/16"- 24 Shift Knob Adaptor

Here is an 2 piece kit to convert the normal after market shift knob from 16mm to 5/16"-24, the common size for '28-'39 Ford. We made our insert from brass to eliminate seizure, which is all too common with aluminum. One end is slotted to aid extracting the adaptor from a shift knob - a common problem. Included are a jam nut and instructions.