# Differential pinion-height gauge reading — nominal (NA8)

Canonical URL: https://miatatorque.com/spec/differential-pinion-height-gauge-target-na8/

Applicability: NA 1994–1997 (BP) — Actual 1994 factory evidence; other years in the approved family inferred with owner approval.

Confidence: fsm

0 mm {0 in}

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": "differential-pinion-height-gauge-target-na8",
  "name": "Differential pinion-height gauge reading — nominal (NA8)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NA",
      "years": [
        1994,
        1997
      ],
      "engines": [
        "BP"
      ],
      "note": "Actual 1994 factory evidence; other years in the approved family inferred with owner approval."
    }
  ],
  "kind": "non-torque",
  "value_text": "0 mm {0 in}",
  "procedure": {
    "notes": "Zero the factory gauge on its reference surface plate. With the specified pinion-height SST installed, measure the lowest left and right carrier side-bearing seating positions and average the two readings. This is the nominal factory fixture reading, not a physical zero pinion depth. Select the spacer closest to the required correction; consult the complete cited setup procedure."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1994",
      "page": "M–38 (PDF p. 623)",
      "as_printed": "Specification: 0mm {0 in}",
      "verified_years": [
        1994,
        1994
      ],
      "document": {
        "id": "fsm-1994",
        "tier": 1,
        "title": "1994 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NA",
            "years": [
              1994,
              1997
            ],
            "engines": [
              "BP"
            ]
          }
        ],
        "note": "Mazda's base manual for 1994–97; later model years got supplements, which we haven't checked yet."
      }
    }
  ],
  "jobs": [],
  "system": "driveshaft-differential",
  "component": "differential-inspection",
  "componentName": "Differential overhaul inspection and selection",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/differential-pinion-height-gauge-target-na8/"
}
```