Hey Ferm, or anyone that knows diesels

[spareparts]

I ran those numbers myself this morning, I guess the tach is off and my tires are short, still drinks fuel and sounds like its screaming at 70 mph. I couldn't get torque on my phone to work on the truck, speaking of which, you know any software(free) that may work, I do have a patch cable to plug into the OBD port from my computer, I'd gladly take that 130 rpm. The numbers work if you plug in 456 gears, I need to check the tag on the rear end, the door sticker says 410, but something isn't adding up right