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Discussion Starter · #1 ·
Hello dear forum,

I have a question and I am interested in an original speedometer from a 67/68 Mustang.
As far as I understand, there was only 120 MPH variant and only the Shelbys had 140 MPH speedometers. Is this correct?

The 140 MPH speedos were only available as trip ordometers or? Normal standard tachos were never available as 140 MPH from the factory?

Thanks for the help.
 

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Hello dear forum,

I have a question and I am interested in an original speedometer from a 67/68 Mustang.
As far as I understand, there was only 120 MPH variant and only the Shelbys had 140 MPH speedometers. Is this correct?

The 140 MPH speedos were only available as trip ordometers or? Normal standard tachos were never available as 140 MPH from the factory?

Thanks for the help.
That is correct. There is a couple places who can re-print your speedo face and I think they can change a 120 to a 140. They can also re-work a cougar speedo/tach if you happen to find a good core.
 

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Discussion Starter · #3 ·
That is correct. There is a couple places who can re-print your speedo face and I think they can change a 120 to a 140. They can also re-work a cougar speedo/tach if you happen to find a good core.
Okay. Thank you very much for your fast response.
But when they re-print a speedo face with a 140 MPH on a 120 MPH speedo they need to change the gears or calibrate it, otherwise it will not work correct, right?
 

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Okay. Thank you very much for your fast response.
But when they re-print a speedo face with a 140 MPH on a 120 MPH speedo they need to change the gears or calibrate it, otherwise it will not work correct, right?
That is correct. I think they do that at the same time. Although you can also change the speedo gear at the tranny to change the ratios.
 

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Part numbers for reference

I would think that there would have been a C7 variant for the Shelby, but by the time that 1975 MPC came around the C8 part listed below was used to service both years.

785542
 

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Discussion Starter · #8 ·
Because a guy sold me a restored trip speedo. I found a part number on the backside of the facing plate. It is:
C7ZF-17265 Miles-N

In my opinion it is just a normal 120 MPH trip speedo or what do you guys think?
 

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Are you looking for just a 140 speedo? A tach of not? A 67/68 Cougar guts same but different gauge face.
If your car (67/68) currently has no tach, but you wanna add, more to that. The gauge metal housing is different as is the gauge wiring harness.
Best I know, for 67 at least a tach/speedo cluster was stock on a 390 GT 4spd stang (like mine) but an option on the rest of stangs, not sure about K code or Shelby. So orig stuff hard to find decent.
 

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Discussion Starter · #10 ·
Are you looking for just a 140 speedo? A tach of not? A 67/68 Cougar guts same but different gauge face.
If your car (67/68) currently has no tach, but you wanna add, more to that. The gauge metal housing is different as is the gauge wiring harness.
Best I know, for 67 at least a tach/speedo cluster was stock on a 390 GT 4spd stang (like mine) but an option on the rest of stangs, not sure about K code or Shelby. So orig stuff hard to find decent.
Yeah, exactly.

I wanted a 140 MPH trip speedometer and at best a nice matching tachometer.

Had Cougars 140 MPH speedos?
 

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The places that restore the gauges can set them up any way you want. I had my Tach converted to 8K and my speedo/trip set for 140 mph. Looks and works perfectly.
 
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