At highway speed, the duramax turns WAY less RPM than the cummins.
I wonder if the Cummins was running 4.10:1 gearing while the DMax has 3.73 or 3.55 gearing?
Kevin in Hillsboro Oregon1981 300CD 204K miles, Giesela AKA Granny
At highway speed, the duramax turns WAY less RPM than the cummins.
I wonder if the Cummins was running 4.10:1 gearing while the DMax has 3.73 or 3.55 gearing?
Kevin in Hillsboro Oregon1981 300CD 204K miles, Giesela AKA Granny