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Old 11-02-2017, 10:05 PM   #21
I Think We're Lost!
 
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Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 20,556
THOR #8860
Quote:
Originally Posted by Chance View Post
You may be correct if Ford now measures speed directly off wheels, like by using the ABS sensors or something similar. On older models they took speed off transmission shaft that measured driveshaft speed. In those cases changing the rear gear ratio required speedometer recalibration.
After thinking about this a bit: you do need to recalibrate the computer for the new gear ratio (and different rpm levels.). The computer won't be seeing the proper rpms for the speeds that it sees, and it WILL throw codes...

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Old 11-15-2017, 02:59 PM   #22
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Brand: Thor Motor Coach
Model: Four Winds 23U
State: California
Posts: 51
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I chose not to make the change after all. I just did not have enough experience driving it to make a decision. I just set it up for towing but have not towed yet. It feels like I have enough power to do what is needed so regearing would not be needed. Also no one has said anything about already doing it and frankly I do not want to be the first. Technically I know it would work. Thanks for the comments.
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Old 11-15-2017, 03:48 PM   #23
I Think We're Lost!
 
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Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 20,556
THOR #8860
Sometimes; the best action is to do nothing!
You know what you've got, and it's been working well...
Why mess with success?
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