Pretty sure my gearbox is toast..

[SScape]

Hi All- I have a 2005 F200 V6 Yamaha - fairly low hours on it but I think my gearbox is done. I get to around 4k rpm and then the engine races and I lose forward motion. I can putt around at low rpms all day but on acceleration it does this and seems like the clutch slips outta gear. I am hoping I can get a re-built lower unit. Any help or suggestions where I can find one?

 

[racerone]

Just install your spare prop and test run.----Sounds like hub is slipping.

 

[SScape]

Thanks but no that has been eliminated as a possibility. I wish!

 

[racerone]

Sounds like motor is mounted too high then.