OK, I just looked at the exploded views and no mine does not have a cotter pin in it.
I did fill the housing with 5 gals. The bolt suggestion is great . Thanks.
By the way, any trick to getting the rear tire off? I have the 6 bolt rim. Just got a nasty flat today by way of fencing wire through the side wall. But I'll be dipped if I can get that rim busted off.