canafford, what model and make of truck are you driving? i found this website that has reviews on running boards, rock sliders and nerf bars, http://www.autoaccessoriesgarage.com/Running-Boards-Side-Steps/Reviews. Also, talking to a professional ford truck dealership is a good idea...

It definitely sounds something is wrong with your transmission. I go to Kent City Ford, they are always helpful and you can call. Unfortunately, transmission are expensive and get real pricey.