hello, i recently deleted my dpf and egr and programmed my truck with a smarty s67. it has 150k km on it and the clutch seems like its starting to slip when i hit the gas hard in 5th and 6th gear. i do not want a racing truck or anything crazy all i want is a reliable durable truck. what would you suggest for clutch options. sometimes i tow the occasional trailer but nothing serious just an enclosed 6x12 or a small boat.