Here is a used set of WINTERS 10 spline quick change gears. They are set # 1. 21/21 tooth. They are 4.11 ratio with a 4.11 ring and pinion and 4.86 ratio with a 4.86 ring and pinion. I used these in a vintage dirt race car and they worked good, no issues. Some pitting damage on back side of one gear. Does not affect usability. I used these with good results. Any questions please ask
