# Fifth gear end play (NA6 5MT)

Canonical URL: https://miatatorque.com/spec/fifth-gear-end-play-na6-5mt/

Applicability: NA 1990–1993 (B6, 5MT) — 1991–1993 inferred from 1990 factory evidence; actual-year verification is separate.

Confidence: fsm

0.1–0.3 mm (0.004–0.012 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": "fifth-gear-end-play-na6-5mt",
  "name": "Fifth gear end play (NA6 5MT)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NA",
      "years": [
        1990,
        1993
      ],
      "engines": [
        "B6"
      ],
      "trans": [
        "5MT"
      ],
      "note": "1991–1993 inferred from 1990 factory evidence; actual-year verification is separate."
    }
  ],
  "kind": "non-torque",
  "value_text": "0.1–0.3 mm (0.004–0.012 in)",
  "procedure": {
    "notes": "Install the steel ball and thrust lock washer, then the C-washers and retaining ring. Measure between thrust lock washer and C-washers. Use two C-washers of the same thickness, 3.0 mm (0.118 in), at this assembly step; unequal thickness can cause bearing failure. Select thrust lock washer to adjust end play. This is distinct from the rear bearing C-washer clearance."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1990",
      "page": "J–36 (PDF p. 368)",
      "as_printed": "Standard play: 0.1—0.3mm (0.004— 0.012 in)",
      "verified_years": [
        1990,
        1990
      ],
      "document": {
        "id": "fsm-1990",
        "tier": 1,
        "title": "1990 Mazda MX-5 Miata Workshop Manual",
        "part_number": "1193-10-89C",
        "covers": [
          {
            "gen": "NA",
            "years": [
              1990,
              1990
            ],
            "engines": [
              "B6"
            ]
          }
        ],
        "url": "https://archive.org/details/1990-mazda-mx-5-miata-workshop-manual_202411"
      }
    }
  ],
  "jobs": [],
  "system": "transmission",
  "component": "inventory-pass-2026-10",
  "componentName": "Service measurements and fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/fifth-gear-end-play-na6-5mt/"
}
```