47-55.1 1952 Chevy 3100 bed cross sill problemo

[Frankthetank.]

Hi guys, I’m in the process of trying to buy all the stuff to be able to put the bed back together on my 1952 Chevy 1/2 ton short bed. It was/is a bit of a jigsaw puzzle when I bought it. In looking at most pictures I can find online of the rear bed cross sill they look slightly different from what came on mine. All the photos & catalog pictures show the rear sill with two extending square brackets that rest on the rear of the frame but mine does not have those brackets making it impossible to rest it & the rest of the bed on the frame.

Was there a difference in cross sills across certain years or models? The top pictured circled is mine. Bottom pic is one I found online.