MSM diff. ratio

[Shane5425]

Does anyone know what the ratio is on the rear diff.??

[rx7gslse]

MSM's all have 4.10 gears... Same as all the '04+ 6spd cars...

[kcbhiw]

MSM's all have 4.10 gears... Same as all the '04+ 6spd cars...

^^ What he said. Beat me by 30 secs, hehe.

[Shane5425]

thanx , brother in law needed that info to finish takin the miata test.. can you belive that it isnt in the shop manual for that car...

[rx7gslse]

really? didn't know it wasn't in the manual...

I suppose I could go look...

Hey, if you run across any of the Mazda 3.636 ratio diff's those are worth $$$...

Most miata's run a 3.9...

[Orthonormal]

Correction!

MSMs have 4.1 final drive, like all 94-97 Miatas.

All other 6-speed Miatas have 3.9 final drive.

All other 5-speed Miatas use 4.3 final drive.

Link (http://www.idsfa.net/miata/gearing.html)

[jared]

so, what would happen if you put a 6spd diff in a 94-97 car??

would the gearing get longer and thus a greater top speed?

of course considering the car made like 300rwhp or so.

[rx7gslse]

Correction!

MSMs have 4.1 final drive, like all 94-97 Miatas.

All other 6-speed Miatas have 3.9 final drive.

All other 5-speed Miatas use 4.3 final drive.

Link (http://www.idsfa.net/miata/gearing.html)

nope... in '04 all 6spd cars went to a 4.10 ratio as well.. they used to use the 3.9

5spds still use the 4.3

http://www.mazdausa.com/MusaWeb/displayPage.action?pageParameter=modelsSpecsSpecs&vehicleCode=MIA