2003 International 7400 truck. I replaced a DT466 with a brand new crate motor DT530. The 530 is 2008 model year, programmed as a 2004 and down. It was a crate motor for military or offroad use only so it has no emissions on it. The ecm part numbers are the same. The engine currently runs and drives fine but the speedo, exhaust brake and cruise control do not work.

That is all controlled in the the ecm transmission setting. I need to to change it from an automatic to manual(8LL). The transmission line is greyed out in servicemaxx so the dealer cannot change it and navistar refuses to help because that engine is not the same as what it had before. Anyone here have any ideas?

Thanks ahead for the help