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Matt 6/6/2017

2016 Dodge Ram 3500 SLT 6 Cyl 6.70L

Transmissions & Drivetrains

Aisin transmission early downshifting

Hi, I have been looking for this information for about a year now. Really hope you can give me a hand!! I bought a 2016 ram 3500 drw 4x4 cab and chassis crew cab truck last year. It has the 6.7 diesel with the max tow package and came with 4.10 gears. Well I had my mechanic swap out the gears to 3.73 to help with the mpg's. Well it did help some since it grip the rpms a couple hundred. Problem I have now is the truck will downshift from 6th to 5th all the time when pulling the smallest of trailers. It will downshift if it's windy or even the slightest of hills. My 2015 duramax with the Allison has 3.73 gears and it's Allison a cab and chassis and it will always hold 6th pulling anything up anything. This is really annoying to me. Is there any programming I could have a dealership do for me to help it hold 6th gear longer? It seems to only do it when cruse control is on. It seems fine when I have cruse off but I drive interstate all the time and it's a pain to not be able to use cruse.

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