1957 Gmc 250 automatc V8

[justjoe]

I came across a 1957 GMC 250 dual rear wheel truck with a 347 pontiac and a hydromatic automatic trans cheap and its restorable. I haven't found much info on the 250, just the 100 and the 300 serise. It looks just like the 1 tons with the big back window and directionals an top of the fenders. wondering if anyone knows about how rare these are, from what I can figure these were the first autos produced in the GMC. any help or info would be great. Thanks Joe