Mine does this same thing, can't wait to hear the solution.
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Mine does this same thing, can't wait to hear the solution.
I realize this is a 4-year-old post, but I wondered if anyone found a good solution.
I'm in the same boat.
I love the Cummins but tolerate the 68RFE.
Mine is a deleted 2018 with a DRD tune.
I was looking at RevMax converters and valve bodies, but I'd like to know if they will improve shifting points/shift flare etc., before shelling out the $$.
I tow about 5% of the time (usually 10-15k lbs.) so this would mainly be to improve daily driving.
Thanks.
The valve body and trans tuning helped a little, but it still does the same thing; my 68RFE seems to love 4th gear.
I have 4.56 gears that I will install at some point to get me back to lower the lower-than-stock final gear ratio, so hopefully, that will help a little more.
If you install the valve body, I don't think you can get an updated tune now to take advantage of it.