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Discussion Starter #1
Hey guys I got my m56 apart and I’m trying to find the final drive ratio, there’s no sticker on the casing and I got it out of a 99 s70 na. Anyone have any ideas how to figure it out?


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Hey guys I got my m56 apart and I’m trying to find the final drive ratio, there’s no sticker on the casing and I got it out of a 99 s70 na. Anyone have any ideas how to figure it out?


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Count the teeth on the final drive gear set. Divide the ring gear (larger) count by the drive gear count to find the drive ratio.


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Discussion Starter #3
Is the drive gear the gears at the bottom of the stacks


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I expect you'll find it's 4.00.
 

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Discussion Starter #5
All 3 shafts have a bottom gear with 21 teeth so dividing with ring gear of 84 I got 4 so we are good


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