Update.
I have been banging around on the lower back portion of this 48 cab every night. I have found the dents not so bad. Thanks for all the information and advice. I am a person to gather as much info as I can before starting. This probably annoys some folks.
What I have found is the side and center support beams have the skin bent around them. It would be nice to have a wide flat metal bar (like a slap hammer?) that I could put between the support beam and the skin. I may be able to straighten the skin out.
Any thoughts or experience in this?
Thanks again for all your help
