{
  "owners": null,
  "title": "Canadian recall 1977012 (Mack), 1975 to 1976",
  "url": "https://carsmultiverse.com/canada/recall-1977012/",
  "summary": "Transport Canada recall 1977012, MACK WS, WL, 1977-05-10. VEHICLES EQUIPPED WITH ROCKWELL INTERNATIONAL FF931C FRONT AXLES AND S-=CAM BRAKES. THE BRAKE.",
  "excerpt": "Mack Ws, Wl. Published by Transport Canada as 1977012 on 10 May 1977. System: Not Entered. What the notice says Vehicles equipped with rockwell international ff931c front axles and s-=cam brakes. the brake spider may fail allowing separation of that portion that retains the brake camshaft, brake chamber and the brake chamber bracket from the foundation brake assembly. failure can occur without warning and lead to brake pull … Is your vehicle included? Check with your VIN at Transport Canada , or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on. This site holds seven national and European registers. Mack WS is named on 1 American notices. Those are separate campaigns, filed with separate authorities on their own schedules. Mack Trucks recall 21V476 - 2020-2021 Granite Nothing here says any of these is this notice in another country. A model recalled in one country is often recalled in another, in different words and at a different time, and the authorities do not cross-reference each other. Reading them together is the reason this site holds more than one register. VEHICLES EQUIPPED WITH ROCKWELL INTERNATIONAL FF931C FRONT AXLES AND S-=CAM BRAKES. THE BRAKE SPIDER MAY FAIL ALLOWING SEPARATION OF THAT PORTION THAT RETAINS THE BRAKE CAMSHAFT, BRAKE CHAMBER AND THE BRAKE CHAMBER BRACKET FROM THE FOUNDATION BRAKE ASSEMBLY. FAILURE CAN OCC",
  "register": {
    "authority": "Transport Canada",
    "country": "Canada",
    "index": "https://carsmultiverse.com/canada/"
  },
  "datePublished": "2026-09-05T13:28:46+00:00",
  "dateModified": "2026-09-05T13:28:46+00:00",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "citation": "CarsMultiverse, \"Canadian recall 1977012 (Mack), 1975 to 1976\", https://carsmultiverse.com/canada/recall-1977012/, licensed CC BY 4.0.",
  "note": "CarsMultiverse is an independent record, not a safety authority. To act on a recall, use the official register."
}