I wanted to thank Brian, Gordo24 for working out a great trade. He swapped me his 17" wheels for my 20" wheels/tires and bought me a new set of Wildcat on/off road tires......I think this worked out great for both parties. I noticed turning seemed a bit smoother with the smaller tires and I also caught myself going a bit faster then normal but I didn't feel like I was going faster. The speedo seemed to be within 2mph of my GPS so I don't think any speedo adjustments are really necessary. I noticed a very slight humm at first then didn't really notice it/pay attention to it, was expecting a rougher ride though since these are fairly aggressive tires.

 

check your lug nuts if the hum dont go away, i dont mean to insult your intellegence but other then your new tires being more knobby than your old ones might be causin that sound...

 

Was a great trade for both of us. The 20's raised my truck alittle (very cool to me) and I think lowered mikes a touch (which I think he wanted to make loading his ATV easier). I'm glad to see you are happy with the rims. Brought my truck in today and got the speedo adjusted ($150). I felt like I was flying (do to the amount of cars I was passing) when the speedometer was reading 70. As for the humm, I'm sure it's due to the more agressive tire pattern as you said. Let me know how those things work for you when you get back from the trip you were talking about to the snow.