Here is a used set of WINTERS 10 spline quick change gears. They are set # 10. Tooth count is 17 and 23 tooth. They are 5.57 ratio with a 4.11 ratio ring and pinion and 6.57 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 very good used shape, no pitting. Very little use on this set.

Any questions please ask