Last night I started changing over the bucket. The new bucket needed some modification to fit right. The nuts inside the bucket that the turn signals screw into were too small on the new bucket. So, they had to be removed. I ran out of light before I could get it all back together. Here are some pictures though:
Here is the original sealed light bulb. You can see that water got into the bulb, which is likely what caused it to fail.
Here is the old bucket still on the bike. To my surprise, the bulb connector is the same on the old sealed lamp as it is on the new H4 bulb, so no rewiring is necessary.
Here is the old sealed beam light (left), and the new H4 assembly on the right. The new assembly
almost fits into the old housing. The mounting is all the same, but its a 6.25" versus 6.5".