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  1. 64on37s

    66rfe issue

    Hello everyone I have an issue I’m hoping I can get some help with. I have a 2016 2500 6.4. I have 103000 miles and just did my 120000 mile trans service (fluid and filters). After finishing the service the truck isn’t shifting properly. It had some trouble from 1st to 2nd, I check the fluid...
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