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On flatter terrain, I've heard you can air down a fat 35" and ease over the top of the crust, but I've never done it.


IME, when the snow gets deeper than you can dig down to the dirt/pavement, airing down the tires is the only way to go. When in deep snow on the trail I air down my 33 AT's to about 2psi, sometimes lower. This gives my 12.50 AT's about a 16" wide footprint, and allows me to distribute as more weight over the tires than with them at higher pressures.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed