Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
SF171A
ON FREIGHTLINER CUSTOM CHASSIS MT35 VEHICLES MANUFACTURED BETWEEN MARCH 20, 1996 AND OCTOBER 23, 1998, EQUIPPED WITH CUMMINS 3.9L ENGINE AND EATON ES4205 MANUAL TRANSMISSIONS, THE CLUTCH DISK MAY CAUSE PREMATURE FAILURE OF THE SYNCHRONIZERS INSIDE THE EATON ES4205 MANUAL TRANSMISSION. *TT
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.