Originally Posted by IDIeselman
I hope I don't offend you boy's as I refuse to read the last 6 post's or so because I have had much drink and it makes me dizzy. But being the highly coveted 7.3 IDI turbo E4od/4.10 the cruising speed (well mine anyhow) @65MPH is about 2250 RPM's The sweet spot as we say For the Indirect injected diesel. (not gasser) So pulling the load in question the only time it will drop from OD is on a substantial grade and the throttle position determines the downshift so if it would down shift it will be at approx 3/4 throttle and needs the lower gear to pull the hill. I completly agree that heat is the #1 enemy of any trans and in this weather when the fan clutch kick's in at 198*engine temp it will be plenty of cooling through the factory cooler. That being said go buy the biggest tranny cooler you can find at put it to good use. I sure hope I don't read this in the morning and think.....WTF was I typing
You made perfect sense. and I agree with you.