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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Speedometer doesn't work...

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Old Jul 7, 2014 | 10:40 AM
  #16  
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From what reading I have done, later model e40d did not have a transmission gear, they used a sensor off the rearend and that might explain why you didn't find anything.

I just got a call from my transmssion guy and the trans has a Green 6 tooth gear in it that has a slight bow in the gear teeth. This may be just enough to prevent the speedo cable gear from engaging. There is also some play on the cable assembly that may allow it to walk off the gear...just a hunch. I also talked to the Ford dealer and they say the orignal Green drive gear, was replaced with a natural colored gear. I have to wonder what changes that made Ford discontinue the original Green one.

I asked my transmission guy to take some pictures so I will forward once I have them.
 
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Old Jul 8, 2014 | 06:27 AM
  #17  
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Despite giving the Ford dealer my VIN number they gave us the speedo drive gear part number for a 4WD and I have 2WD. Lucky my transmission guy knew what they were doing. Stay tuned...
 
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Old Jul 8, 2014 | 08:48 AM
  #18  
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The part number for the speedo drive gear is E8TZ-2N598-A, parts list below:


/
 
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Old Jul 8, 2014 | 08:50 AM
  #19  
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Thanks, I should have just asked you guys instead the dealer for the right part number.
 
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Old Jul 8, 2014 | 11:16 AM
  #20  
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Do you happen to have a part number for the speedometer cable gear? It thought i would ask you before the dealer this time.
1990 E40D
 
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Old Jul 8, 2014 | 11:30 AM
  #21  
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The number in the write up above is CASZ-17271-B is a Black one with 20 teeth.
How many teeth did your old one have as that is what you need to match and what color was it?

The CASZ-17271-B is a Black one with 20 teeth and will work with a 5.13:1 rear end with 16 inch tires.

But I think the number should be C1DZ-17271-A 4.10 Gear Ratio Black 20 Speedo Gear.
 
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Old Jul 8, 2014 | 01:16 PM
  #22  
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I'll have to check the number of teeth, but I do remember it was natural or white in color.
 
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Old Jul 8, 2014 | 07:04 PM
  #23  
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The gear is natural color and has 18 RH stamped on it and I confirmed it has 18 teeth.
 
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Old Jul 8, 2014 | 07:39 PM
  #24  
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More than likely it would be this one then.
C7AZ-17271-B Gray 18 Speedo Gear.
All other 18 Speedo Gears are yellow.
OR
Did it look like this one?


/
 
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Old Jul 9, 2014 | 03:27 PM
  #25  
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Got the assembly back today and my transmission guy said the original drive gear was really loose compared to the fit of the new. Thanks again for all the help and good call, SubFord, on the drive gear E8TZ2N598A. When I get pics from him I'll email them to you.

Thanks again for everyones help!
 
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Old Jul 15, 2014 | 12:37 PM
  #26  
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Hey SubFord,

Sorry but my trans guy told me they where going to take pictures but they never got around to it during the process. I do have the speedo gear pt. number and I'll post it here shortly.

I am not sure how long i have to wait to get permission to post some pics but I'll be sure too once I have access.

Thanks again for all the help!
 
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