When updating the axle ratio via PCM Programming or Programmable Parameters on Taurus/Sable, whats the difference between the two axle ratios that are displayed?
The WDS will display “3.77 axle (3.47 FDR)” and “3.98 axle (3.47 FDR)”. Either selection is acceptable, since the final drive ratio is 3.47 for both of them. The only Tire Size selection is 797. When selecting this tire size, WDS may return the “calibration is out of acceptable limits”. Select OTHER then enter 800 for the tire size.
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