So on my way to Phoenix today i noticed the cruise control would downshift an it would slam into gear. Then i get stuck at a fatal accident in the desert so i put the truck into park. Then when we were signaled to go, nothing truck wouldnt shift into anything. I cycled the ignition and the shifter then truck went into gear. The shifter did feel kinda stiff to shift. When i made it to havasu I stopped for a few min and had the same issue but i noticed that this time when the trans would shift it would slam into gear and roll back. I applied the brake and then i felt it engage. I also noticed that the indicator flashes under reverse now and i get a range inhibit and it is in limp and will only go into first or sec. gear. So needless to say im stuck and have only basic hand tools. Tonight i crawled under it and checked nsbu connection and cleaned. Fallowed wiring looked for rub and breaks to no unveil. No codes on the dash and i dont have a scanner. I need help if anyone is around.