Showing specs for all NA & NB Miatas

Automatic transmission range switch shaft nut (NB1)

27–43 in·lb in·lb3–4.9 N·m3–4.9 N·m27–43 in·lb in·lb
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Install new packing and lock washer. Tighten nut, then bend lock-washer claws.

Applies to
  • NB 1999–2000 (BP-4W, 4AT) — 2000 applicability inferred from 1999 factory evidence within the owner-approved NB1 group.
  • Verified in: 1999 Mazda MX-5 Miata Workshop Manual
Sources

Also in Additional NB1 automatic service fasteners