New 67 c10, Does this rear end suspension look factory to you?

[Low & Slow]

Just picked up this 67. Its my first vintage truck and I don't have any local friends in the scene to ask questions to. Soooooo, here I am.

The previous owner was a Mechanic and I bought the truck from the widow. Does this rear end suspension look factory to you guys? Something just doesn't look kosher to me. I really have no idea what is going on here. Everything painted in yellow looks as if it is from a later model truck. Thoughts?





Thanks guys!