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what are the main differences and usages of the two components for the truck? Not quite gettin manual!
 

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Traction control monitors and eliminates tire slip on acceleration. Traction control modulates the brakes and cuts engine power to compensate and eliminate tire spin.

The electronic rear differential provides the driver manual control to lock the rear axle/wheels in a 1:1 relationship. Use case would be in a canted rear situation where one rear wheel is spinning free and receiving the power transfer and the remaining rear wheel contacting the ground is not receiving an power transfer. Engaging ERD will distribute power to both rear wheels.
 

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thanx joe makes sense .would drivin without traction control change fuel consumption
 

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thanx joe makes sense .would drivin without traction control change fuel consumption
If your at the point to where the TC is engaging to control wheel spin, your likely using too much throttle. :D Using less throttle will likely net you better mileage :D

I've heard a mention that turning off trailer sway control has benefited mileage, but I no way to actually substantiate.
 

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To make a difference in fuel economy it would need to engage, as any time your brakes engage it hurts fuel economy. However, it will only engage when the car-puter senses an unsafe condition and you would want it to kick on because it just might save your backside. I strongly discourage people from deactivating a safety feature on your truck. I have never had my sway control engage even when I have experienced some minor sway towing the SolAire. I believe that these safety features will only engage when they really need to and that is when I want them too. Fuel economy be damned if it is at the expense of myself or my family’s safety!

SPPD
 

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Not influencing anyone to turn off any safety features like sway control while towing as that wasn't part of the stated use case. The poster does ask about fuel economy but doesn't qualify it by implicitly stating while towing. Hence trailer sway control being enabled in a non-trailering situation was implied and merely stated other F150 EB owners have been having conversation and dialog with this feature on and off in attempt to maximize fuel economy. It's implied in non trailering situations.
 
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