Ok, i live in a small town and this is for auction with NO KEYS.... As of now, I can get it for $25 bucks and I don't imagin anyone else is gunna bid against me on it. BUT, if I got it, what could I use? Anything? Could I even use the axels? It says it has a V8 diesel... any clue what that would be? (SIZE I MEAN) and would it be worth rebuilding for my blazer? (I know it may be a giant thing that needs the 12 speed manual tranny, but I hope not) Here are the details given.
1977 GMC SIERRA FLATBED TRUCK, 08 CYL, ODO:UNKN VIN: TJV737V608937, TAG:I136228, 4X4, MT, DIESEL, CONVERSION FROM SERVICE TRUCK TO WATER TANKER FOR FIRE. REPAIRS REQUIRED BUT NOT LIMITED TO: NO KEYS. (14815751250002).
1977 GMC SIERRA FLATBED TRUCK, 08 CYL, ODO:UNKN VIN: TJV737V608937, TAG:I136228, 4X4, MT, DIESEL, CONVERSION FROM SERVICE TRUCK TO WATER TANKER FOR FIRE. REPAIRS REQUIRED BUT NOT LIMITED TO: NO KEYS. (14815751250002).
... though there are some, like my brother... who would love to snatch out that tandem axle setup... he has an Interantional thats dying for a tandem axle... but even then, I'm not sure it would be cost effective...or safe to do such a swap. 

--how could you go wrong??...a TIRE off it is worth more!
.... not much you cant do with that rig!..wish I could buy one for that price..