griswold00
New Member
Hello All,
We bought a 66 Polara 383 2Dr Hardtop for my son about a year ago. We bought it at an auction and it was stated it had a "New 727 Transmission". So take that for what it is worth.
When we got the car, the speedometer was not operational. We assumed they never ran the cable after the tranny swap. However after buying another cable, we found the old cable there, just not plugged into the transmission. So we plugged it in and viola a moving spedometer.
However it doesn't seem to be geared correctly, as it reads about 26 MPH when we are actually going 35. Likewise at 45 on the spedo we are actually going 57ish.
Does anyone have any advice on how we can correct this? I know there are different number of teeth on spedometer gears, but I'm clueless on how to get to the gear and take it out to count.
Thanks in advance for any advice.
Scott
We bought a 66 Polara 383 2Dr Hardtop for my son about a year ago. We bought it at an auction and it was stated it had a "New 727 Transmission". So take that for what it is worth.
When we got the car, the speedometer was not operational. We assumed they never ran the cable after the tranny swap. However after buying another cable, we found the old cable there, just not plugged into the transmission. So we plugged it in and viola a moving spedometer.
However it doesn't seem to be geared correctly, as it reads about 26 MPH when we are actually going 35. Likewise at 45 on the spedo we are actually going 57ish.
Does anyone have any advice on how we can correct this? I know there are different number of teeth on spedometer gears, but I'm clueless on how to get to the gear and take it out to count.
Thanks in advance for any advice.
Scott
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