9999 NMB NMB Recall

Campaign:: 85E018000 on 05/30/1985
Component:: Wheels:center section
Manufactured:: 12/31/1984 - 02/28/1985
Affected:: 24,240
Defect:: Improper shaping of bolt hole countersink as well as countersink being too shallow and eccentric to the bolt hole in some cases causing lug nut to lose proper torque. consequence of defect: when lug nuts lose proper torque it causes cracks to develop in disc wheel which could fail and fall off causing vehicle crash.
Correction:: Wheels will be inspected and repaired or replaced as necessary.
Notes:: Description: highway trucks, trailers and buses.system: disc wheels 22.5 x 8.25; 24.5 x 8.25.