Speedometer question

[IH8BOWTIES]

I have a 93 and my 140 mph speedometer started going nuts on me. A friend gave me a stock 85 mph and said I could try it. Just as we expected it works like an 85 mph one in a 140 mph speedo. (reading way fast) Is there another gear I can put in the tranny that will slow it down to work in the 140?

 

[Mustang5L5]

WHat exactly did you swap?

No there isn't a gear. The calibration is all done in the speedo itself.

Did you just swap the speedo machanism and leave the face?

 

[TRWXXA]

WHat exactly did you swap?

+1

From what you're saying, I'm going to assume you put the 140mph face on an 85mph speedo.

No, there is no speedometer drive/driven gear combination that will get an 85 mph speedometer to work with a 140 mph face. You have to get a new 140 speedo, or put the 85 mph face back on the one you have now.

 

[IH8BOWTIES]

Thanks. I thought as much. I bought the car with the 140 in it. Got the 85 from a friend that was already apart. He thought it was an 85 mph but wasn't sure. Now we know. Anyone know where I can get a 140?

 

[Mustang5L5]

ebay.


Or you can send that 85MPH speedo in and have it recalibrated from Brothers performance warehouse

 

[IH8BOWTIES]

ebay.


Or you can send that 85MPH speedo in and have it recalibrated from Brothers performance warehouse

Now there's an idea........Thanks