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-   -   Still in search of a speedo sensor (3.9 swap) (https://www.miataturbo.net/wtb-7/still-search-speedo-sensor-3-9-swap-106712/)

JohnnyHess86 04-14-2022 08:54 AM

Still in search of a speedo sensor (3.9 swap)
 
Hello all!

Still looking for a speedo gear for my 99. Must be from a 99-03 6 speed car, as I have swapped a 3.9 diff in to the car. No one on the ~10 Facebook groups I am part of will remove one whole bolt and sell the sensor, only the complete trans... *eyeroll*

Anyone got one for sale?

Thank you!

mrslwly 04-16-2022 08:10 PM

This?


https://cimg3.ibsrv.net/gimg/www.mia...cc57a5fc9.jpeg

JohnnyHess86 04-16-2022 08:28 PM

I believe the blue ones are from 3.63 equipped cars.

sonofthehill 04-16-2022 11:45 PM

I run a 3.9 in my 99 with 205/50/15's and the speedo is closer with the 3.9 on a green 4.3 speedo gear. Mine used to read about 4mph higher than actual speed with the 4.3 ring and pinion, now it reads about 1mph slower than actual speed. I just have to remember not to be unhappy when people aren't quite doing the speed limit ahead of me, but it is much closer now.

JohnnyHess86 04-16-2022 11:59 PM

Interesting, I seem to have the opposite problem. I have the 4.3 sensor with 16” wheels, and at low speeds it’s pretty close. However, above ~50mph, My speedo is reading about 6-7mph slower than my actual speed. The gap grows slightly larger at higher speeds as well.

sonofthehill 04-17-2022 12:06 AM

Interesting, mine might creep to about 2mph low at 70mph. It does look a little low clocking 120 though, I will have to pay a little more attention. Unfortunately all I have is a green one and a blue one, which I agree is for the 3.6 with 16" wheels.

Phantom914 05-09-2022 02:41 AM

Anyone want to sell a 3.63 sensor :hs:

teagan 05-11-2022 05:13 PM

hello there how are you doing today , i have a have a seller for the item you needed , contact him
willycastilo52@gmail.com


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