Hendog,
We put the trans in at about 165. The truck was in tow-use before we bought it. We seldom tow with it.
Most of the people who have these say that you are looking at a trans somewhere between 150 and 200, a differential after that but the engine will run strong (with proper maintenance) well in excessive of 350,000 miles... The differential rebuild is a VERY affordable pre-emptive repair - well, alot less than the transmission was - LOL!
We actually just put our diesel pickup for sale as part of the new streamlined economics at Casa de Lane...
I am seriously going to regret the day this truck drives away...
angela