Much like many touted bulled penetration statistics that are stated as fact, while I agree that a 45 to the head is never recommended. Guns, reloading and shooting are another major hobby.
The idea of spacers (good ones, properly made and properly fitted) should causew no additional stress to the suspension components than an overly wide tire. In fact, tire weight and size are most likely the primary factor to failure. So whether that 37 is on a wide positive offset rim or bolted to a spacer should make little difference. We put huge, heavy tires and articulate the suspension to the max and blame the spacer when something fails.
Now, all that said, I am going to be doing light offroading mostly for camping and mountain biking. So I doubt that I will come close to ever stressing spacers or anything else on my Rubie. Does not mean I won't, I have been caught with my pants down before, and even in my more advanced maturity and age, I suspect it will happen again. I may not be as good as I once was, but I am good once as I ever was....
I swapped back to the stock Rubie wheels yesterday and spacers are at the house to be put on today after work. I can say right off the bat that I much prefer the look of the stock setup. Those wheels I got are just too darn wide and made the tire bow out too much. I should have checked that more. They might have worked better on a 35 or 37, but I have no plans to go that big....at this point....
I will post pics when I get it all sorted.
The interesting thing about the front sag is that it is also (I am noticing) really based (visually) on where I park it. If I back it in my drive the front looks a lot lower. If I pull in forward it is almost level. Optics are a funny things.