speedo gear
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Junior User
Joined: Mar 2003
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speedo gear
***I couldn't think of a better place to put this thread, so forgive me if it's misplaced. Moderators: Feel free to move the post to a more appropriate forum.***
My 1997 F150 had a rear-end gear swap from 3.55 to 4.10; now, of course, the speedo is miscalibrated. However, I had a local speedshop owner tell me that there is no replacement speedo gear for my engine/rear-end combination. Furthermore, since my truck is a '97, the speedo can't be calibrated with a tuner.
How could I calibrated the speedometer if it can't be done with a tuner or speedo gear?
Thanks in advance.
My 1997 F150 had a rear-end gear swap from 3.55 to 4.10; now, of course, the speedo is miscalibrated. However, I had a local speedshop owner tell me that there is no replacement speedo gear for my engine/rear-end combination. Furthermore, since my truck is a '97, the speedo can't be calibrated with a tuner.
How could I calibrated the speedometer if it can't be done with a tuner or speedo gear?
Thanks in advance.
Thread Starter
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Junior User
Joined: Mar 2003
Posts: 66
Likes: 0
I know the gear ratio changed it...I've passed by those sheriff radar things on the side of the road and it has been consistently between 8 and 10 mph off. The aftermarket wheels/tires I put on the truck were very close in overall diameter, so the speedo would've only been 1 or 2 mph off from those. 10, however, is a different story.
So what do I do to fix it?
So what do I do to fix it?
