So I'm planning on going from Syracuse, NY to Boston, NYC, then back to Syracuse and from here out to Los Angeles, CA...my question is, how should I prep my truck? I am taking my 20 inch chrome Rockstars off (better milage hopefully and dont have to freak out about them getting all scratched up) and putting my stock rims and tires back on, and am taking it into a local shop and having them do a few things. So far I am planning on them flushing the radiator, changing the plugs, checking the transmission and rear end fluids, putting a new serpentine belt on and changing the fuel filter. Anything else you think I should have them do? I changed the oil to synthetic 2000 miles ago, and I'll do another oil change before I head out but that's not actually happening until the 15th of August. Oh, and the trucks got 135K on the clock now and runs great!