I have a 140MPH speedo in my 88GT, I did not do anything to my tranny gear. I just had to swap out my speedo.
When you say loopy? Is the speed off? Is the needle wabbling?
You do not want to change your gear because then your KM ratings will be off, if you care, which I do not.
So, what is it you needle? Or is the speed off?
Ian
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Ian Sim
ian@stangpower.com
1988 Mustang GT "Canadian Cobra", stock, AOD, loaded
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