i want to upgrade to a set of indiglow gauges. if i switch to a set of 3.73 gears is there a way to recalibrtae the speedo? is it even needed?

 

What set up do you have now? Auto or 5 speed? What is your gear ratio?

Your best bet is to do a search of the transmission board, looking for "Speedo gears" or something like that. You will find your answer there.

As for the overlays, you will not have to do anything. The gears in the trans will make the adjustments that you need.

HTH