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Ran 30psi and didn't have too much of a problem on the road. It was when the old '82 Chevy conversion van passed me running street tires that was embarrassing. <img src="/forums/images/graemlins/lol.gif" alt="" /> My truck just couldn't handle the hills ad was breaking loose and losing power (8K elevation)....unfortunately there was no place to slow and put the rig in 4HI prior to getting to those hills...oh well.


In most snow conditions on the road, street tires or all-terrains will do better than MTs (at least unsiped ones), Those other tires have sipes in their read pattern and have a many more tread edges than the big monolithic MT tread blocks. Also, good time to just lock the front hubs and when you need 4H, just pull the stick back while you are driving and keep going. No need to slow down or even press the clutch in. As long as the rear end is not spinning/sliding, you can pop from 2H to 4H any time you want as long as the hubs are locked.