Now this may be a simple question to most, and it's not intended to be silly. I know as much about automobiles as I do programming a space ship for NASA. So please, be gentle.
I have a 2003 Dodge Ram 2500 with a Hemi. It's a quad cab, with a full bed. I have the tow package on my truck, and a brake box. I am pulling a 8,000 camper (travel trailer), and want to know exactly how everyone pulls. Do you just keep it in drive? Do you turn O/D off? What about going up hills/mountains? I want to be as gentle as I can on my truck all while getting the job done. I have the Magnaflow exhaust and it makes my truck sound like it's going to explode when I am towing. I know that's just the loud muffler though.