Here is a used set of WINTERS 10 spline quick change gears. They are set 16. 18/24 tooth. They are 5.49 ratio with a 4.11 ratio ring and pinion and 6.48 ratio with a 4.86 ring and pinion. I used these in a vintage dirt race car and they worked good, no issues. Teeth are in good used shape, no chips or pitting. Any questions please ask.