I'm hoping for some help.
Recently I changed my 3.73 gears (which were installed before I owned this car)in my 96 GTS. I put a new factory assembly in w/ 3.07's.
My speedo is way off & I am having a hell of a time finding the calibration box.
Ive looked under the dash, behind kick panels...
I just replaced my 3.73 pumpkin with a stock factory 3.07 unit, and now my speedo reads 20mph if I am going 50mph. Obviously there is a calibration box that was installed when the gears were, so I searched for threads & found a couple that had bits of info about the location of the box. I...
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