Jump to content

Dana's New Spicer Trac-Lok Limited-slip Differential Improves Traction for Medium-Duty Trucks


Recommended Posts

Dana Press Release  /  March 18, 2019

Dana today announced the launch of its Spicer Trac-Lok limited-slip differential for Spicer S140 single drive axles, which will be available in June for medium-duty work truck applications.  The differential provides improved traction during unexpected wheel-slip events and utilizes a reliable five-pinion design to serve Class 6 applications.

The Spicer Trac-Lok provides improved traction capability without requiring switches, wires, sensors, air hoses or manual input from the driver.  During a slip event, it automatically sends approximately three times more torque to the high-traction wheel-end.  The Spicer Trac-Lok then returns to normal wheel-end differentiation as conditions change in order to deliver maximum vehicle handling.

"The Spicer Trac-Lok differential for Class 6 applications utilizes a proven design from Dana products in the Class 5 and light-vehicle markets.  Our team utilized an established Dana technology, making application-specific refinements and adaptations, to maximize benefits and increase productivity," said Mark Wallace, president of Dana Commercial Vehicle Driveline Technologies.  "We are pleased to now offer a Dana-developed commercial-vehicle version of the enhanced differential for medium-duty applications that improves vehicle performance and uptime."

In addition to providing automatic engagement and enhanced traction, the Trac-Lok device is lightweight and fully interchangeable with a Dana standard S140 axle differential.  Trac-Lok will be available on Spicer S140 single drive axle models with gross axle weight ratings from 17,000 pounds up to 21,000 pounds.  Simplifying installation and use, Trac-Lok does not require wiring, pneumatic connections, special lubricants, or additional friction modifiers.

The Trac-Lok limited-slip differential is supported by Dana Aftermarket, which will offer Spicer Trac-Lok differential retrofit packages for all S140 drive axle models currently in service.


Photo 2.jpg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...