# Rear upper arm to knuckle bolt (1991)

Canonical URL: https://miatatorque.com/spec/rear-upper-arm-knuckle-bolt-1991/

Applicability: NA 1991 (B6)

Confidence: single-source

34–49 ft·lb / 46–67 N·m

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "rear-upper-arm-knuckle-bolt-1991",
  "name": "Rear upper arm to knuckle bolt (1991)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NA",
      "years": [
        1991,
        1991
      ],
      "engines": [
        "B6"
      ]
    }
  ],
  "kind": "torque",
  "torque": {
    "nm": [
      46,
      67
    ],
    "ftlb": [
      34,
      49
    ]
  },
  "confidence": "single-source",
  "sources": [
    {
      "source": "mitchell1-1991-rear-suspension",
      "page": "PDF p. 5",
      "as_printed": "Upper Arm-To-Knuckle Bolt 34-49 (46-67)",
      "torque": {
        "nm": [
          46,
          67
        ],
        "ftlb": [
          34,
          49
        ]
      },
      "note": "Claim for the 1991 Miata printout; does not extend this spec's applicability.",
      "document": {
        "id": "mitchell1-1991-rear-suspension",
        "tier": 2,
        "title": "Mitchell1 1991 MX-5 Miata: rear suspension",
        "covers": [
          {
            "gen": "NA",
            "years": [
              1991,
              1991
            ]
          }
        ],
        "url": "https://www.mellens.net/mazda/Mazda-Miata-1991-1993/rear_suspension.pdf",
        "note": "Secondary service printout. Some articles cover multiple Mazda models or years; citations use only the identified Miata entries. Other Mitchell1 printouts count as the same publisher, not independent consensus."
      }
    }
  ],
  "jobs": [],
  "system": "suspension-rear",
  "component": "rear-arms",
  "componentName": "Rear control arms",
  "url": "https://miatatorque.com/spec/rear-upper-arm-knuckle-bolt-1991/"
}
```