I bought a new truck 7 weeks ago and have 8700 miles on it already. I am wondering how long this truck will last and what I can do to make it last longer. I am installing a bypass oil filter and plan to use synthetic oil after 20000 miles. I tow a 3000 lb. trailer 90 % of the time. I have a egt guage and shut off timer which I have to use almost always. Would like to know the average life expectancy of brakes, starter, axels, u-joints, waterpump, and other whear out items. Thank you