Im glad your ok man, but I highly doubt thats the issue that caused it. I had the same thing happen on my lifted scab and it was due to the tire shop not torquing my lugs.
so after thinking some i agree the mods shouldn't have done it. but oh well, now i gotta dakota with 4.7 v8 2wd.
Maybe it was the C clip? Probably nothing to do with how you drive it, chances are it was on its way out. Crazy to hear, glad you are ok! Luckily you were in a big truck rather than an econobox!