Identification help

I found some iron sitting out in the desert and need some help with identification. I figure these are both from big truck but I just don't know what? Anyone have any ideas?






Another question.....how do you go about attaching the pics as thumbnails? I got the basics for attaching pics figured out but I think it would be better if I could attach them as thumbnails for those folks on dial-up

Thanks
Bobby

 

The big piece is WWII GI,,,GMC