I'll skip the details. But I accidentally shifted the truck into reverse while moving forward at a slow-ish speed (10-15 MPH). I've been doing research to see what possible damage could be done. There was no noise, no feeling, it just felt like it was in neutral. I know automatic transmissions have safeguards to prevent shifting in reverse while going fast, like highway speeds, but I'm wondering where that tolerance limit is. What speed does the transmission allow the vehicle to be shifted into reverse from a drive gear?