What year is this 4x4 truck frame?
 

Ad says its 1976..... The frame shape in the front and front spring perches and shackle set up is odd . Not a 76 ... Maybe it isnt even a pick up truck frame.

I think it might be a 1950s 2WD straight axle frame, 1955-59 truck frame. Some one put maybe 1976+ 4x4 axles on

https://scontent-sea1-1.xx.fbcdn.net...HQ&oe=6956372C

https://scontent-sea5-1.xx.fbcdn.net...Ng&oe=6956328E

https://scontent-sea5-1.xx.fbcdn.net...ZQ&oe=69560312

https://scontent-sea5-1.xx.fbcdn.net...oA&oe=69562E22

Re: What year is this 4x4 truck frame?
 

55-59 is my bet. Definitely has later axles.