Showing specs for all NA & NB Miatas

Differential pinion-height spacer selection (NB1)

Mark 08: ≈0.12126 in (3.08 mm); Mark 11: ≈0.12244 in (3.11 mm); Mark 14: ≈0.12362 in (3.14 mm); Mark 17: ≈0.1248 in (3.17 mm); Mark 20: ≈0.12598 in (3.20 mm); Mark 23: ≈0.12717 in (3.23 mm); Mark 26: ≈0.12835 in (3.26 mm); Mark 29: ≈0.12953 in (3.29 mm); Mark 32: ≈0.13071 in (3.32 mm); Mark 35: ≈0.13189 in (3.35 mm); Mark 38: ≈0.13307 in (3.38 mm); Mark 41: ≈0.13425 in (3.41 mm); Mark 44: ≈0.13543 in (3.44 mm); Mark 47: ≈0.13661 in (3.47 mm)Mark 08: 3.08 mm; Mark 11: 3.11 mm; Mark 14: 3.14 mm; Mark 17: 3.17 mm; Mark 20: 3.20 mm; Mark 23: 3.23 mm; Mark 26: 3.26 mm; Mark 29: 3.29 mm; Mark 32: 3.32 mm; Mark 35: 3.35 mm; Mark 38: 3.38 mm; Mark 41: 3.41 mm; Mark 44: 3.44 mm; Mark 47: 3.47 mm

Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Fourteen factory spacer choices in 0.03 mm steps. Use the complete factory pinion-height gauge procedure and stamped pinion correction to select the required thickness. These are pinion-height spacers, not the single-use collapsible preload spacer; install with the beveled side facing the drive pinion.

Applies to
  • NB 1999–2000 (BP-4W) — Actual 1999 factory evidence; other years in the approved family inferred with owner approval.
  • Verified in: 1999 Mazda MX-5 Miata Workshop Manual

Sources (1)

View 1 source citations
  • Page 03–14–9 (PDF p. 364) · Printed value & notes
    Page 03–14–9 (PDF p. 364)
    Printed: “Mark Thickness 08 3.08 mm {0.1213 in} 11 3.11 mm {0.1224 in} 14 3.14 mm {0.1234 in} 17 3.17 mm {0.1248 in} 20 3.20 mm {0.1260 in} 23 3.23 mm {0.1271 in} 26 3.26 mm {0.1283 in} 29 3.29 mm {0.1295 in} 32 3.32 mm {0.1307 in} 35 3.35 mm {0.1319 in} 38 3.38 mm {0.1331 in} 41 3.41 mm {0.1343 in} 44 3.44 mm {0.1354 in} 47 3.47 mm {0.1366 in}”