Recal for 285s in N. Texas...

[SparkyTX]

I am getting ready to finally bump up to the 285s on my 03 Sierra. I am also planning on adding some juice to it. Had the truck almost a year and it is time for some new improvements.

However, I would like to recalibrate the computer for the bigger tires. Anyone recommend where I can go get this done? Or does someone have a tool for doing this that is willing to make a few bucks?

Thanks guys!

[dmaxalliTech]

your not gonna do it with any type of tool from GM. I know the Pred will do it and maybe some others, but its not something that can be done and still use the tool for other uses. The Pred will vin lock to do it. There are some splice in type stuff out there, but I am not familier with any of it.