Listed gear-ratio data for 2002 Mercury 9.9 HP BigFoot / ProKicker outboards. Match your exact model and lower unit; some models may have more than one gearcase configuration.
2002 Mercury 9.9 HP BigFoot / ProKicker
Listed ratio values: 2.40:1
| Model | Gear ratio |
|---|---|
| 1999-2005 | 2.40:1 |
Use the ratio that matches your exact outboard model and lower unit, then enter it in the PropSlip calculator.