Sorry to hear about your troubles. Tell us what you hit? How fast? How much prop damage? Was the rudder involved? SS or nibral prop?

If it was just a low speed prop "ding" while you moving in shallow water, the prop may be out of balance even though it has been "fixed". If it was a high speed against something solid like a log then consider a shaft or alignment issue. Check the rudder also.

Until recently I would have said to drop the shaft out anyway. Rolling the shaft on a machined flat surfaface is a quick and dirty way to check for bends. Brian Raymond recently suggested that the shaft coupling flange was machined after installation on the shaft. He therefore advises to remove the shaft through the engine compartmet (engine lifted). Separating the shaft from the flange and dropping the shaft back through the log (as I have always done in the past) would negate the care taken on initial assembly. So now checking the shaft becomes an engine out job. Not a big deal but maybe more work that you had hoped for.

So what would I do? If it was a big hit, take it in and have it professionally checked. You should not run with any vibration in these boats. If it was a small "ding" Check your alignment at the flange (see previous thread). Then check by swapping for a prop you know is good. Be careful that the key is not keeping the prop from seating properly.

Stainless props are very hard on the drivetrain with any sort of a prop strike. They are are also not repairable if the damage is significant at all. The nibral props will absorb alot more shock and can be brought back to spec by a good prop man.

I am sure I don't have to mention this but NEVER hit the prop to get it off or on. ALWAYS use a puller. Sorry to mention something so basic but I have seen alot of needless damage over the years. That also means that if you carry a spare you need a puller with you. They are not expensive. I made one up from a carpenters C clamp. I have seen guys spend $$$$ on an inboard boat and then buy every option available to make it look good but no spare prop or puller.