Maruha Final Gear Lineup MX-5 Miata

What is the final gear for a general user? Let us explain the mechanism first.
The final gear is the part that is composed of the differential that is located at the center of the back tire on the right and left.
The final gear is composed of set parts. I.e. Pinion Gear and the Ring Gear.
The set of Pinion Gear and the Ring Gear is called the Final Gear within Differential Gear .
Tuning means modifying this gear ratio.
The standard parts associated with the final change are as follows.

It is recommended to exchange these 5 parts simultaneously.
It is also advisable to exchange the oil seals of the Diff.Case side to prevent oil leak.
If after the installation during the test drive it is found that oil is leaking then it is waste of time and resources.
In such a case installation needs to be done from the beginning.

The final gear ratio for NA8 and NB6 and NB8 model are as follows.

For NA6 are as follows

Maruha excels in the installation of final gear and we also offer set price including Mazda genunine parts you would need.
Please click the set parts page.


Maruha Motors Co., Ltd.
Ushizuma 2095-6, Aoi-Ward
421- 2106 Shizuoka city, Shizuoka prefecture
TEL: 0081-54-294-0076
FAX: 0081-54-294-1312