Should I Strengthen my Frame?

[jhiggy94]

I'm Working on my 72 K20 and i hear so much about people strengthening the frame on these trucks that i wasnt sure if it was a normal thing to do. My main plan for this truck is to be used both off-road and on-road. My main uses off road would be mainly hauling wood and probably some mudding. On road i would use it for some towing and driving. I dont plan on racing but i may do some kind of engine/transmission swap in the future. Any advice is welcome! Thanks!