Freightliner M2 Rear-End Failures
Kyle Dixon
Within the last four months we have experienced two complete rear-end failures in two of our three M2 Freightliners. The first one failed when the spider gears failed at approximately 60,000 miles. The second truck failed this week when the pinon bearing failed at approximately 64,000 miles. All preventative maintenance was completed on schedule and as required. I'm shocked these supposedly medium-duty truck chassis' have had the rear-ends fail what I believe is prematurely. Has anybody else experienced anything similar? If so, any success in receiving compensation from Freightliner for this part failure?
Kyle Dixon, BAS, EMT-P, Fleet Coordinator
Adams County Ambulance & EMS
330 Vermont Street
Quincy, Illinois 62301
Alex Morisano
Kyle- We experienced issues similar to this with our 2003, 2004 M2s. Our system is mostly urban and what we found was the differentials had a device in them called a No Spin (similar to posi or traction control), which is apparently an optional piece of equipment from Freightliner. The issue that seemed to create the broken axle was the wear and tear of tight turns while accelerating in slippery conditions causing too much torque on one side of the axle. What we found after some research is that the device is marked “not recommended for city use”, and unfortunately that was the primary use of these two ambulances. In terms of Freightliner covering the issue we were not successful based on the fact that the device is not recommended for the environment we were using it in. There is a kit to remove the device if you find that this is the same system that we had. Let me know if I can be of more assistance.
Captain Alex Morisano
Operations Division
New Britain Emergency Medical Services
New Britain, CT
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