{"source":"nhtsa","country":"us","campaign":"90V048000","date":"1990-03-12","owner_notified":"1990-06-27","manufacturer":"MACK TRUCKS, INCORPORATED","component":"STEERING:LINKAGES","summary":"THE UPPER AND LOWER PINCH BOLT ON THE STEERING PITMAN ARM AND THE LOWER PINCH BOLT CONNECTION ON SHEPHARD POWER GEARS WERE NOT TORQUED CORRECTLY.","consequence":"PINCH BOLT COULD LOOSEN AND BREAK; THIS COULD CAUSE LOSS OF TRUCK STEERING CONTROL AND RESULT IN A CRASH.","remedy":"INSTALL ENGLISH HEX HEAD BOLTS AND FLAT WASHERS; TORQUE PINCH BOLTS TO SPECIFICATIONS.","notes":"SYSTEM: STEERING WHEEL ARM PINCH BOLT.VEHICLE DESCRIPTION: HEAVY-DUTY TRUCKS WITH TRW POWER AND MANUAL GEARS AND SHEPPARD POWER GEARS.","mfr_campaign":null,"part_number":null,"units":6696,"completion":null,"do_not_drive":false,"park_outside":false,"notification":null,"french":null,"vehicles":[{"year":1988,"make":"MACK","model":"CH","vehicle_id":"1988_mack_ch","match":"exact","built_from":"1988-07-01","built_to":"1990-02-01"},{"year":1989,"make":"MACK","model":"CH","vehicle_id":"1989_mack_ch","match":"exact","built_from":"1988-07-01","built_to":"1990-02-01"},{"year":1990,"make":"MACK","model":"CH","vehicle_id":"1990_mack_ch","match":"exact","built_from":"1988-07-01","built_to":"1990-02-01"}],"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/90V048000"}