Wilsons Sandbox

A TC question. Can anyone tell me what if anything should be installed between the bottom front of the front wings, and the front of the frame where they meet. Thanks in advance Mark Evenchick [Non-text portions of this message have been removed]

Mark, I think I cut strips of old inner tube to buffer the metal to metal contact there. I'm sure the inner tube had BSC threads. Michael DeRentz [Non-text portions of this message have been removed]