{"source":"nhtsa","country":"us","campaign":"87V187000","date":"1987-12-14","owner_notified":"1988-08-05","manufacturer":"MACK TRUCKS, INCORPORATED","component":"STEERING:LINKAGES","summary":"THE PITMAN ARM TO DRAG LINK ANGLE IS OUT OF PHASE.","consequence":"UNDER CERTAIN CONDITIONS, STEERING LINKAGE COULD GO INTOA TOGGLE CONDITION RESULTING IN A SLOW WHEEL RETURN AND IMPAIRED STEERINGCONTROL, CREATING THE POTENTIAL FOR A VEHICLE CRASH WITHOUT PRIOR WARNING.","remedy":"REPLACE MISMARKED PITMAN ARM.","notes":"SYSTEM: PITMAN ARMVEHICLE DESCRIPTION: HEAVY DUTY TRUCKS WITH SHEPPARD STEERING GEAR.","mfr_campaign":null,"part_number":null,"units":29,"completion":null,"do_not_drive":false,"park_outside":false,"notification":null,"french":null,"vehicles":[{"year":1987,"make":"MACK","model":"MH","vehicle_id":"1987_mack_mh","match":"exact","built_from":"1987-04-01","built_to":"1987-11-01"}],"may_apply":true,"as_of":"2026-10-19","lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null},"attribution":[],"url":"https://open.wenmarpro.com/recalls/nhtsa/87V187000"}