recalibrating with 4.10's??
 

im having 4 10's installed in my 10 bolt just to see how itll feel when the 9" comes...

anyway...how can i go about getting my speedo and all that recalibrated...i dont want my speedo off and i dont want my milage to get skewed...

Any thoughts?
thanks
Erik

Pretty much any handheld tuner will do it (Hypertech, etc.) or any tuning software (Edit, etc.) or most performance/dyno shops, or even your local GM dealership!:)

thanks!!!