One more thing......
It seems that there was a thread here in the forums where guys were talking about beefing up the top edge of their buckets. Guys were using angle iron and talking about rectangular tubing, etc. Well, when I went out to take pictures of the hooks for you, I noticed the 2" (or larger)pipe that the previous owner welded into the top lip and into the sides of my bucket. Anyway, I thought you might want to consider some reinforcement for yours.
When you're lifting some pretty heavy stuff with the bucket, and all the force is being applied to the top, it wouldn't hurt to consider some kind of support there if your bucket doesn't have any.
Also, I went to the AW website as mentioned by another member and saw those "weld-on" hooks they have. I like those better than what's on mine, although, mine have done pretty good for the last couple of years.
Good luck,
Stretch