You did notice the sarcasm icon, no?
I've been spending time on Cumminsforum lately where every second thread became heated debate on mirrors, or stacks. I have no issue with either, except that stacks won't work with my camper, thus are not a consideration for me.
The truck is coming along nicely Red. Is the stack base welded to the deck? It looks very clean! Joined below with flex pipe might be an idea? I'm not sure how much flex you'll see, but could be a cracking issue on the trail.
Sarcasm was noted post was made to prevent any further non sarcastic remarks...:sombrero:
The stack is in fact welded to the deck the flex issue is currently taken care of under the truck with a slip connection that I have intentionally left loose until my 4" web flex joint gets here. After that is installed I don't see any issues.