That rear piece on mine has so many dents and dings i would never get them all out so I think I will just leave its battle scars in it. Now if it effects how that block goes in them I might massage the metal a bit. Below is the type i am working on. At one point in its life they replaced the wooden beams with a steel ones.

http://i1062.photobucket.com/albums...1-40EA-87A8-26414055D6A9_zpscigc3vwg.jpg


1949-52 Chevy 3800 1-Ton Flatbed
In the Stovebolt Gallery
More pix on Photobucket