Mike,
I've been thinking about it, but its not necessary yet... so far I've been able to balance the load evenly to where its not a problem really. Worst case scenario it does squat the truck a little its acceptable and generally no further than 10 miles from the yard. I use to work at a shop where we installed almost any aftermarket truck accessory you can think of, so I've installed airbags on many pickup trucks. I've yet to take my vehicle to any shop for anything other than an alignment. Everything else I do in-house including repairs, fabrication, modification, installations etc. Just don't need the high tech laser alignment equipment Although i've done "tape measure alignments" on quite a few of my rigs (not daily drivers mostly off road toys or beaters).....