Differential pinion-height spacer selection (NA6)
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
Fourteen factory spacer choices in 0.03 mm steps. Select the thickness nearest the required pinion-height correction using the complete factory gauge procedure; install with the specified orientation. These are pinion-height spacers, not the single-use collapsible preload spacer. Metric values control; the NA printed 3.14 mm row repeats 0.1224 in from the 3.11 mm row. The original inch text is retained in the citation.
- NA 1990–1993 (B6) — Actual 1990 factory evidence; other years in the approved family inferred with owner approval.
- Verified in: 1990 Mazda MX-5 Miata Workshop Manual
Sources (1)
View 1 source citations
Page M–38 (PDF p. 421) · Printed value & notes
Part no. 1193-10-89CPage M–38 (PDF p. 421)Printed: “Mark Thickness 08 3.08mm (0.1213 in) 11 3.11mm (0.1224 in) 14 3.14mm (0.1224 in) 17 3.17mm (0.1248 in) 20 3.20mm (0.1260 in) 23 3.23mm (0.1271 in) 26 3.26mm (0.1283 in) 29 3.29mm (0.1295 in) 32 3.32mm (0.1307 in) 35 3.35mm (0.1319 in) 38 3.38mm (0.1331 in) 41 3.41mm (0.1343 in) 44 3.44mm (0.1354 in) 47 3.47mm (0.1366 in)”
Related service specs
- Differential pinion bearing preload (NA6)
- Differential pinion bearing preload (NA8)
- Differential pinion bearing preload (NB1)
- Differential side-gear/pinion-gear backlash — standard (NA6)
- Differential side-gear/pinion-gear backlash — standard (NA8)
- Differential side-gear/pinion-gear backlash — standard (NB1)
- Differential side-gear/pinion-gear backlash — standard (NB2 open differential)
- Differential drive-pinion/ring-gear backlash — setup target (NA6)