I already have the Edge juice/ additude on my 04.5. I have 36" swampers and need to calibrate my speedo. I guess the Superchips flashpac wont work on a 04.5. Is there anything else?

 

Head over to the local dealer. They charged me $35 to recalibrate my speedometer.

 

Thats kinda a long shot at my dealer, but I'll give it a try. My dealer cant even turn rotors.

 

beware that if you do get it recalibrated your slip feature on the attitude will no longer work. I read somewhere that they now have a superlift true speed for the 3rd generation trucks. I havnt checked myself yet though................

 

Before you go to the dealer you need to know what the tire mfg. says the revolutions per mile is, that is what they will reset in the computer

 

We have a Snap-On computer that our mechanic uses to read codes and it does tons of different things, one of them being reprogramming the pinion factor for tire size. Pretty expensive, don't remember how much exactly but it would cost a lot less to just go to the dealer than buying something like that.