I just installed the sct chip, and everything seems to be working right but when i ordered it i selected the 4.10 gearing because i thought that it would fix my speedometer but it is still off. Did the tune not get set right or will the chip not fix the gear change?

 

When they burn those chips, they select what gears you opted for, they must have forgot to add that to the chip. I would call and see about sending it back.