We are working to get a '49 3100 back on the road. Our work currently is focused on trial fitting the box, fenders, running boards and splash aprons. Then it all comes apart for final paint.

The front panel of the bed has 2 flanges that attach to each side of the bed. Obviously there are multiple round holes that align to connect the sides to the front.

There is also an elongated slot in each flange of the front panel near the bottom. There is no corresponding feature in the front end of the side panels.

What is the purpose of those slots?

We were able to reuse the original front panel. I do not see those slots in the replacement panels available these days.

Thanks for the help.

Rusty