• Steel Construction

    Superior engineering

    Built from fabricated steel, these axles feature strengthened suspension joint clamp integrity and squared-off corners to form a tighter, longer-lasting connection. Suspension brackets use set screws that are welded in place to boost bracket-to-axle weld joint integrity.

  • Dual-Reduction Architecture

    Smart and strong

    Spiral and helical gears significantly reduce stress and gear face pressure through the carriers. The spiral bevel gears provide rolling friction instead of the sliding friction, reducing frictional power loss.

  • Improved Fuel Efficiency

    Mack’s drive axles are optimized for highway applications to increase the fuel efficiency of your truck by 1.5% over industry-standard axles.

  • Complete Integration

    Fully integrated with Mack’s MP® engines, transmissions and suspensions, this complete powertrain is designed to work together seamlessly for better efficiency.

  • Uptime by Design

    The S40 axle housings have tighter tolerances and fewer joints for greater reliability and longer life. The bowl cover is seamlessly integrated into the housing for more durability and to keep dirt and debris from damaging components.

  • Maintenance Intervals

    +

    mDRIVE™

    Normal Duty

    Greater than 6 mpg Less than 39L/100km

    Heavy Duty

    Greater than 5 mpg Less than 50L/100km

    Severe Duty

    Less than 5 mpg Greater than 50L/100km

    Transmission oil and filter (Replace)

    Oil quality: Mack Transmission Oil 97318*

    Miles

    500,000

    Not Allowed

    Km

    800,000

    Not Allowed

    Hours

    60 months

    Not Allowed

    mDRIVE™; mDRIVE™ Severe Duty and mDRIVE™ with Crawler Gears

    Transmission oil and filter (Replace)

    Oil quality: Mack Transmission Oil 97319*

    * Approved oils only, lists can be made available

    Miles

    500,000

    250,000

    Km

    800,000

    400,000

    Hours

    60 months

    2,500

    T300 SERIES TRANSMISSION

    Highway Standard and Extended Oil (Replace)

    Miles

    Std: 250,000 / Ext: 500,000

    -

    Km

    Std: 400,000 / Ext: 800,000

    -

    Hours

    Std: 24 months / Ext: 36 months

    -

    Vocational Standard and Extended Oil (Replace)

    Miles

    -

    Std: 40,000 / Ext: 80,000

    Km

    -

    Std: 64,000 / Ext: 128,000

    Hours

    -

    Std: 12 months / Ext: 12 months

    AXLES

    Rear Axle Oil (Replace)

    Miles

    500,000

    80,000

    Km

    800,000

    125,000

    Hours

    36 months

    12 months

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