I'll be driving across country from North Carolina to California in the next 2 weeks and I was wondering what are some things I should check before leaving on the trip across the beautiful usa. There's nothing wrong that I know of she runs good, sounds good, the idle isn't variating. But I figured there's some preventative maintenance that I could conduct. I have a 2003 ford f250 7.3 with a 6' lift (rough country). Look forward to the communities advice, thanks.