i have bravo 1 drives. Yesterday cruising along then it suddenly felt like I got something in the prop. Then went away. Motor sounds fine and the drive sounds fine just when I accelerate one doesn't want to spin like it should, it still works fine when idaling and docking. Nothing sounds or feels messed up. I was told maybe a spun hub? Or anyone have any other ideas and how do I test for a spin hub?

Put a mark on the prop and the prop nut in line and run it in the water with a load.
if the hub is spinning the marks wont be aligned after you test it.

if its the drive. The marks will be perfectly aligned after the test.

Stick your fingers down behind the motor where the coupler is. Feel around if you came silver metal filings or you feel googy rubber. That's an indication coupler may be bad

Could also be engine coupler.usually there is a burnt rubber smell along with that though.