Call Grady customer service, I'm sure it's a tapered bore vs straight. Taper is the marine std. Also, make sure to ask the the size of the nut you will need as well.
wouldn't the nut size be the same as the shaft? I just installed mine today, unfortunately I did not measure the nut itself but the one I took off I had to use a 15/16th socket to get it off if that helps. Also, find a wheel puller it will make the job much easier. Also, once I installed the new wheel there was about a 1/2 to 1/4 inch gap between the black wheel mount and the wheel itself. I figured the was ok as the seastar standard wheel that came with the boat had a much deeper base to it than the edson wheel did. I will post pic here soon.
Ok, so my wife got me an Edson wheel (With knob) for our 2009 330 for Fathers Day. What us the best way to remove the nut on the wheel, without dinging it? Also, I am presuming it is a standard thread, not Left-Hand?
Some steering shafts have a recessed face that helps center the point of the gear puller, some don't. If you have a flat faced steering shaft, use a center punch to locate the gear puller. It can take quite a bit of force to pop the wheel off.
Thanks. I ended up using a large adjustable wrench (the old square type) with a heavy towel to loosen the nut. Of course, the wheel was stuck, so next trip back is with the 3 arm gear puller.