1964 GMC S5000 Recall

Campaign:: 71V101000 on 10/11/1979
Component:: Engine and engine cooling:engine
Affected:: 22,206
Notes:: Gmc campaign no 65-c-2.series 5000, 5500, 6000 and 6500 truc ks and series5000 school buses equipped with 401 or 478 gasol ine engines.school bus.possibility that 14" flanged-type f lywheel and clutch assembly has intergralflange as part of fl ywheel.could create safety hazard when rotating speedsare a pproximately double the governed engine speed.improper drivi ngtechniques or driver error, such as misshifting transmissio n when downshiftingalso can cause this condition.(correct b y installing new flywheel and clutchassembly.)