You never know when you might need the torque specs. I needed mine week before last. My 19.5's troque to 450 lbs. I had a blow-out in far west Texas. I have roadside assistance but knew it would take them at least 2 or 3 hours to even get to me so I changed it myself. Of course it had to be the inside dually. I was up and running back on the road before the assistance could have even gotten there. I carry a six foot cheater pipe with me so breaking them and retightening them was a piece of cake.