Well good morning everyone. Looks like we might actually get snow up here in NH this week. Maybe I'll be able to drive my truck in 4x4 after all. Now that I know everything there is to know about 4 wheel drive I have absolutely nothing to worry about......

 

You made a claim, he respectfully questioned you on it, you replied with smartass answers, and now it's devolved to a childish play on his username. I thought you were gonna quit posting in this thread, and yet here you are again.

You don't change the OD of the tire by airing up or airing down, unless you've secretly developed some sort of magic rubber stretcher. You can change the traction properties of a tire based on PSI, and I could see where experimenting with different pressures might aid in helping the front tires bite. But that isn't what you were selling.