[MrE]

I haven't looked at the dimensions, but physically it's probably an easy replacement. The Duramax is an electronic engine meaning you'll have to get a compatible electronic transmission to communicate with the Duramax ECU. I don't believe the Duramax uses the J1939 CANbus protocol that Class 8 trucks and Newell use, so Silver Leaf and Blue Fire probably won't work to replace your analog gauges. You would be able to use Torque Pro, a $5 Android app with a $20 BlueTooth adapter and an ODBII port that would have to be wired in.