Service intervals...will they increase
New automatic for class 8 , heavy duty trucks called the Eaton Endurant. I was reading that he oil drain intervals have been stretched out to 750,000 miles for this transmission. I'm impressed. I...
Forum Discussion
SidecarFlip wrote:
Far as I know, only Allison builds a completely automatic Class 6-8 auto and they have to have fluid changes and filters on a regular basis.
Not any more. The Ford 6R140 is also used in class 6-8 F670/F750 trucks. Most people think that just because the F750 has a 7 in it then it is a class 7 only. However, some variants of the F750 have GVWR's above 33,001 lbs which makes them a class 8 heavy duty truck. Technically it is the only automatic transmission used in light, medium, and heavy duty trucks. Allison makes transmissions for each class, but they are different.
