Forum Discussion
Cummins12V98
Mar 23, 2016Explorer III
The comment about the 3500 with Aisin constantly "HUNTING" and 3.42's not being good gearing.
If the truck is placed in TowHaul it won't hunt. Aisin makes the 3.42's work within it's GVWR because of the lower starting gears. When towing lock the trans in 5th it will be exactly the same RPM's as if it were in 6th with 4.10's.
Bonus is better economy running solo with 3.42's.
I towed 28-29K combined with 3,42's and only negative was starting on a grade. That would have been cured if I had the Aisin instead of 68RFE.
If the truck is placed in TowHaul it won't hunt. Aisin makes the 3.42's work within it's GVWR because of the lower starting gears. When towing lock the trans in 5th it will be exactly the same RPM's as if it were in 6th with 4.10's.
Bonus is better economy running solo with 3.42's.
I towed 28-29K combined with 3,42's and only negative was starting on a grade. That would have been cured if I had the Aisin instead of 68RFE.
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