Here is a used set of WINTERS 10 spline quick change gears. They are set # 24 with 20/29 tooth. They are 5.97 ratio with a 4.11 ring and pinion and 7.04 ratio with a 4.86 ring and pinion. These are the REM polished gears for less friction. I used these in a vintage dirt race car and they worked good, no issues. A few teeth have minor pitting and scratching on a few of the teeth. Any questions please ask