Meritor Adds Axle Ratios
Meritor’s 14X tandem drive axles with a 2.79 ratio will be available for production in June, and a 2.85 ratio will be ready later this summer. When used in combination with the Cummins and Eaton SmartAdvantage powertrain, the new axle ratios will improve fuel efficiency for linehaul applications through ‘downspeeding’ — maintaining road speed at lower engine rpm.
With these new axle ratios, drivers will experience a fuel-economy ‘sweet spot’ at road speeds of 62 to 65 mph, Meritor says.
To maximize fuel economy and vehicle performance, fleets should consider the entire drivetrain, including engine parameters, transmission, rear-axle gearing, and tire sizes, Meritor advises.
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