I have a1009 and put a 700R in i. Best thing I ever did to it,but I have 3.42 gears and 35’s. It really could use 3.73 with these tires. As others have said your truck won’t be in overdrive very much, but what everybody is missing is the lockup torque converte! This is a game changer itself. I have a switch so I can loc it up in 2,3,or 4th gear. You can actually heat the radio when it is locked up!