Showing specs for all NA & NB Miatas

Automatic transmission extension housing bolts (NB2)

18–30 ft·lb24–41 N·m24–41 N·m18–30 ft·lb
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Use a new gasket. Use a new gasket.

Applies to
  • NB 2001–2005 (BP-Z3, 4AT)
  • Verified in: 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture); Mazda SB4A-EL Automatic Transmission Workshop Manual
Sources disagree. The factory manual value is shown; other published values are marked below.
Sources
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page PDF p. 1572
    18–30 ft·lb (24–41 N·m)
    Printed: “24—41 N·m {2.4—4.2 kgf·m, 18—30 ft·lbf}”
  • Mazda SB4A-EL Automatic Transmission Workshop ManualTier 1
    Part no. 9999-95-422H-99
    Page 05–13Y–49 (PDF p. 61)
    27 ft·lb (36.3 N·m) — differs
    Printed: “36.3 N·m {3.70 kgf·m, 26.8 ft·lbf}”

Also in Automatic transmission