Should I replace my U-joints?
 

I'm contemplating replacing the u-joints on my TRS drives. They feel good (no binding) and they are rust free. I already have new ones, but I'm wondering if I should wait to get the boat running before replacing them or just do it now while the drives are off. Here is what the ujoints look like.

If they feel perfect and look good (and haven't been run behind stupid big power to where you need to worry about fatigue) I wouldn't waste my time. I have over 1000 hp/ft lbs of tq in my boat and have ran the same u-joints for about 350+ hours, they feel like new still, Smitty