1965 Bed Issues

[rmvlt1100]

I'm having an issue with my bed lining up with the cab. I put the bed on the truck and it is sitting about a 1/2 inch to high. I used the 1/4 rubber bushings that are listed to use between the cross bars and the frame. Not sure what the issue can be so if anyone has any ideas and/or fixes please let me know.
I have a couple of pictures that shows the issue but thats all I have right now. I got a little discouraged after that and the truck has sat idle the past couple of weeks.

I was told that the cross braces are the originals for the truck but not 100% sure because the truck was appart when I bought it. Are there different cross bars for different years? Again if anyone has ideas please let me know.






Thanks, Robert