OK, I don't do any rock crawling, but have been down some pretty rough forest service roads, etc. Lots of washboard roads also. Maybe I'm crazy (likely), but we only aired down once in 13 years and 175,000 miles.
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2008 Ford E-350 Quigley 4x4 V10 - 164,000 miles
RB50, PH Top, Dual AGM Group 27 Deka, 2000 Tripplite Inv., No Propane or Water Systems
Van Weight 8,100 pounds, added one rear leaf spring, BFG AT KO LT265/70R17 E Tire press 50psi.
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