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Both of the black controllers and even the green controller will talk to the diagnostic software with J1708. It's only the later black controllers that will speak the faster J1939 protocol. They all interface with the software - as far as I know even the A0 one's do if you acquire or build the...

The A1 and later trucks all use the same controller since they all use ECM controlled engines. The early one's were green and the later ones or replacement units are black.

Not sure I understand the question - the Dana/Spicer/Eaton CTIS controller is stock for our trucks.

Read through my recent thread first. You can find the Dana controllers pretty cheap on ebay, etc and they are pretty decent actually. More rugged and environment proof for sure and with the diagnostic software and their ability to output fault codes, etc I find they work well...