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Discussion Starter #1
I really want to know how to keep my truck in 4th gear. I've read the manual & pushed buttons of all kinds, but can't find anything to keep it in 4th gear.
Can it even be done?
 

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Discussion Starter #3
Just like to keep it wound up in the winding hills of Southwestern, Mo. I tow a 10.5k boat & the damn transmission hunts for 3-4-5 like crazy.
 

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6.0l vans with the 5R110 don't have a tow/haul mode. It's an O/D on-off switch just like in the old 7.3l trucks with the 4R100. So it has to be a software setting. Maybe you can get a custom tune that does that for you.
 

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If you lock out OD, it will still hunt between 3 & 4.
 
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