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What would cause shift stacking

 
  #16  
Old 03-16-2016, 01:30 PM
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I fit into a couple of these,
https://www.ford-trucks.com/forums/1...ed-sensor.html
my speedo does not jump around, and my ABS light is not on, but it does shift very hard into second.
 
  #17  
Old 03-16-2016, 01:53 PM
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Originally Posted by Benningtonr View Post
i do not know, but i doubt it. Truck came with the taller tires. that would have to be done by the dealer?
The dealer would not typically do this. Is the speedometer and odometer reading correctly? i.e. at 60 MPH are you really going 60?

Some good reading here: What's a PSOM and how do I "P" it?
courtesy of Steve83
 
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Old 03-16-2016, 01:54 PM
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it is off 2-3 mph
 
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Old 03-16-2016, 02:28 PM
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That's not much, but it can be tweaked to bring it in closer using the info in the link. It takes some math, but simple to do once you figure out the constant value.
 
 
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