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Miata 5th gear interchange Miata 5th gear interchange

 

Input teeth

Counter Teeth

Miata.814 gear teeth

40

18

0.45

Miata Input shaft teeth

21

38

1.8095238

Net ratio

0.8142857

RX-7 .697 gear teeth

41

17

0.4146341

Miata Input shaft teeth

21

38

1.8095238

Net ratio

0.7502904

RX-7 .711 gear teeth

52

22

0.4230769

Miata Input shaft teeth

21

38

1.8095238

Net ratio

0.7655678

RX-7 .758 gear teeth

51

23

0.4509804

Miata Input shaft teeth

21

38

1.8095238

Net ratio

0.8160598

RX-7 .807 gear teeth

50

24

0.48

Miata Input shaft teeth

21

38

1.8095238

Net ratio

0.8685714

 

Special Thanks to Felix for the research and the chart.