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Old 03-06-2012, 10:08 PM   #1
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speedo fix

I have 430 gears in my 98 mustang and figured since I have to put another transmission in it I might as well fix the speedometer being off. I was wondering what speedo gears I should order to correct it. I have seen some people suggest getting a speedcal. (Before anyone says anything about 430 gears being a bit much, I actually bought what was supposed to be 410s at Carlisle and didnt realize until I got home and took my car to the shop that they had boxed them wrong and I ended up with the 430s.)
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Old 03-06-2012, 11:57 PM   #2
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Quote:
Originally Posted by clark98gt
I have 430 gears in my 98 mustang and figured since I have to put another transmission in it I might as well fix the speedometer being off. I was wondering what speedo gears I should order to correct it. I have seen some people suggest getting a speedcal. (Before anyone says anything about 430 gears being a bit much, I actually bought what was supposed to be 410s at Carlisle and didnt realize until I got home and took my car to the shop that they had boxed them wrong and I ended up with the 430s.)
Well it depends on the tranny type you are putting in. I have a buddy who is having an issue with his speedcal box right now. But I'm assuming yours has the mechanically driven speedometer gear correct?
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Old 03-07-2012, 05:10 AM   #3
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Correct, it's a t45
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Old 03-07-2012, 05:37 PM   #4
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Ok. Well I can't help you with the gear part but if you go with the speed calibrator box then I highly recommend double and triple checking your wiring on it. The box ha worked just fine for my buddy until just recently when his speedometer decided it just doesn't want to work any more
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