No tranny connections or crawling under your truck is needed. If memory serves me correctly it's only two wires that need connecting. They are located in the brain module near the passenger side kick panel, in the firewall. They are called B&M Electronic Shift Kits. Check them out at the B&M Website! You could probably get a great deal on Ebay. If ya need help installing it shoot me an email and I can help with the install.