Using the SCT 2 to recal the speedo
 

I will install some 18 x 10's running Nitto 555 285-40-18's, this is up from my stock 235-55-17 on stock 17" rims.

If you can do it, help me out and give me a step by step.

Thanks

That might not be that much of a difference.Measure your stock height and when you put your new one's on measure them.