My 06 Megacab has over 130K miles on it. Here is what's been done. AC/Defrost air direction vain replaced under wnty. At around 100K replaced ball joints, rough roads here. My Tach no longer reads reliably, suspected cold solder joint problem. Added a small digital box that gives much more information by just plugging it in (under 100$). From reading this site, JB welded on a section of reinforced hose to prevent transmission line rub through, Thanks TDR! My rear door locks do not work, wires broken. I will repair with high strand test lead wire, I'm a tech by profession. Most the miles on my truck are under the programming of the Smarty JR. I do not regret my purchase one bit. It took me about two years before the love of my truck hit its peak. Not that I'm on the downhill slide now.