I have a 1998 chevy silverado 4x4 and I need the instructions to reprogram the computer thanks Kenny

I have a 1998 chevy silverado 4x4 and i need the instructions to reprogram the computer thanks Kenny
You'll need access to the General Motors database and an updated scan tool capable of uploading and downloading the data.
Why do you need to reprogram the computer?

Ok I Got It Programmed It Was Simple.

Thanks For Your Help.
I Got Instructions From Junk Yard And It Took 45 Minutes And My Truck Was Running Again.