While not common, I would not say they are rare.
I have a 52 3800 with 9' pickup bed, and I have seen and heard of dozens of others, I haven't kept a tally, but probably near 100.
I consider Rare to be something you only see in museums, in a rich guys collection, and occasionally beyond hope in a junk yard. While not extremely common the 9' bed trucks don't seem to sell for any more than a 1/2 ton, often less. Although there are times when a seller convinces the prospective buyer that they are extremely rare, and demands a premium for it. I just don't think the 9' beds are at that point right now.
As stated earlier, the 9' bed was only on the 3800 / 1 ton trucks, and it was only pickup bed length available on the 1 ton.
Grigg
