Arguably the hardest working part of the engine, the transmission doesn't get nearly the recognition or attention it deserves. The 68RFE, for example, isn't listed by name in the specifications of ...

That transmission would go on to become the six-speed 68RFE. The 68RFE has gone on to receive mixed reviews from RAM truck owners, as it performs well in its intended role but falls short when ...

with the standard-output Cummins paired to Chrysler's 68RFE automatic transmission. Heavy-duty trucks from the 3500 up are punchier, with the high-output Cummins delivering 420 horses at 2,800 ...