Part
Datsun 240Z, 260Z, 280Z Speedometer pinion gear (17-tooth, 3.54 ratio)
17-tooth speedometer pinion gear for the 240Z (1970-1973) running the factory 3.54 differential ratio. Tooth count must match the diff ratio or the speedometer will read off — Nissan supplies 16/17/18/19/20/22-tooth versions; the 17T is the right one for the early 240Z 3.54 R180.

Where to buy
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Fits
| Vehicle | Engine |
|---|---|
| Datsun 240Z | L24 |
| Datsun 260Z | L26 |
| Datsun 280Z | L28 |