40/41 Big Truck Questions

[Jmelcock]

Hello All,
I'm new here. I have been working on a 41 Half Ton Pickup. I picked up some rear fenders recently that I believe to be 40/41 Ford big truck. I paid a decent amount for them before realizing that they are not for a half-ton. I'm wondering if someone can tell me what I have here, so that I can possibly recoup some of the funds to put towards other parts. They are in pretty good shape... There is not a pic of what would be the drivers side, but there was a spare tire mounted on the driver's side of the trailer... Also, no filler hole in the driver's fender was a giveaway. Any help is appreciated. Thanks!