# PPF installation height check — six-speed manual (NB2/Mazdaspeed)

Canonical URL: https://miatatorque.com/spec/ppf-height-manual-6mt-nb2/

Applicability: NB 2001–2005 (BP-Z3, 6MT) — Other years in this family inferred from 2005 factory evidence with owner approval; actual-year verification is separate.; NB 2004–2005 (BP-Z3-TURBO, 6MT) — 2004 family applicability inferred from the generic 2005 differential procedure with owner approval.

Confidence: fsm

60.0–72.0 mm

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": "ppf-height-manual-6mt-nb2",
  "name": "PPF installation height check — six-speed manual (NB2/Mazdaspeed)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        2001,
        2005
      ],
      "engines": [
        "BP-Z3"
      ],
      "trans": [
        "6MT"
      ],
      "note": "Other years in this family inferred from 2005 factory evidence with owner approval; actual-year verification is separate."
    },
    {
      "gen": "NB",
      "years": [
        2004,
        2005
      ],
      "engines": [
        "BP-Z3-TURBO"
      ],
      "trans": [
        "6MT"
      ],
      "note": "2004 family applicability inferred from the generic 2005 differential procedure with owner approval."
    }
  ],
  "kind": "non-torque",
  "value_text": "60.0–72.0 mm",
  "procedure": {
    "notes": "Install the MT PPF bracket, remove the transmission jack, then measure vertical A from the illustrated underbody reference plane to the lower PPF surface using the factory reference surfaces. Adjust PPF position if outside specification. This dimension is not ground clearance. Erroneous printed inch endpoint is retained only in the citation."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-2005",
      "page": "PDF pp. 1179, 1184–1185",
      "as_printed": "Standard length\nMT: 60.0–72.0 mm {2.36–2.38 in}",
      "verified_years": [
        2005,
        2005
      ],
      "note": "Generic MT procedure covers BP and BP WITH TC with no five-speed restriction. Printed inches are inconsistent; metric selected per owner policy.",
      "document": {
        "id": "fsm-2005",
        "tier": 1,
        "title": "2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)",
        "covers": [
          {
            "gen": "NB",
            "years": [
              2005,
              2005
            ],
            "engines": [
              "BP-Z3"
            ]
          },
          {
            "gen": "NB",
            "years": [
              2005,
              2005
            ],
            "engines": [
              "BP-Z3-TURBO"
            ],
            "trans": [
              "6MT"
            ]
          }
        ]
      }
    }
  ],
  "jobs": [],
  "system": "driveshaft-differential",
  "component": "gap-followup-2026-10",
  "componentName": "Additional factory manual gap audit",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/ppf-height-manual-6mt-nb2/"
}
```