I have noticed the high number of automatic transmission troubles on this and other newsgroups and as a very satisfied owner of an "04 CTD enjoy the very high torque output of the CTD. With a vehicle weight of 7800 lbs empty and the high torque capability of the CTD, it is easy to see why automobile type automatic gearboxes fail. Only truck automatics in the same class as the big Allison 6 speed will be reliable over time in this application and they are expensive and are not offered. So why do so many CTD owners insist on automatic gears when this observation is so easy for anyone to make? The clutch on my CTD is a 13 in, seriously heavy duty unit and it is very easy to trash this clutch with just a little abuse. Perhaps you CTD owners with automatics could satisfy my curiosity by explaining your rational for making that choice. Of course the early gears fail more than the later models, but even the late model gears are simply not up to the task. These trucks have
1,000,000 mile motors and 100,000 mile gears. Steve- posted
17 years ago