Why did they both go at the same time? Did you start the motors with the boat not in deep enough at the ramp? Did you find all the old impellor vanes/parts when you installed the new ones?

I have no idea why they both went out like that. I had the fork lift drop the boat in the water and idled about 300 yards before I noticed it. I found all the parts, I hope. I reconstructed them the best I could without all the tiny little pieces. I back flushed and didn't see any other pieces come out.