Question,

Did the pre 03 8.1 ever come with a dbc throttlebody?

Reason for asking is that we installed a 2002 DBC 6.0/nv4500 in a truck and the customer would like to use the PTO function, I flashed in a matching 8.1 OS, got it changed to DBC, Enabled the PTO and i can adjust RPM with my tech 2 and also change the PTO settings. But it won't work as advertised with the Cruise/PTO Switches. Anyone?

Thanks