Took a week to get the parts, not bad. There was an issue with USPS and kept showing my tracking number as just label created when in actuality it had shipped. So all is good. I got both parts.
I do have a question, can I install the of the crawl control switch and still drive the truck without messing anything up til I get some one with techstream or do the paperclip trick. I understand it won't work til I update but I don't want to mess anything else up if I drive it.
Thanks for all the help and info on here.
you'll be fine. I installed my switch but didn't get around to doing the ZPC with techstream for about a week while driving the GX around.