Spedometer Recalibration

This is the thread where @John_Walker discusses the in-line ratio adapter. I’m planning to use the same solution and the same shop for my 3.07 conversion. The Denver shop just rebuilt the original speedo in my '64…fast turnaround, very fair price, and excellent results. I was going to live with the error. but decided to go for the adapter as the interior is currently removed and I don’t want to do that job again.

Speedometer Gear Ratio Adaptor installed. Was Speedometer Cable Nut Size? - E-Type - Jag-lovers Forums

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