Viper, is the truck completly built? My steering rubbed untill I got all the front end put together and bolted down, then it went away. The steering assembly is very close but nothing rubs on mine.
The belt will feel real tight untill it's run a little, I spent a good bit of time trying to find something wrong with mine but it just needed to be run a little. I was using the stock tensioner settings, which I think you can run a little looser but I would start there and get things broke in first.