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Exact Diff ratio?

Tech Talk for Cruiser owners.

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Exact Diff ratio?

Post by GURU »

G'day

I'm just interested to know if a Hilux 4.7 diff ratio is exactly 4.7 or if it is something like 4.764.

If it's 4.7 exactly is it 10 teeth pinion and 47 teeth crownwheel ?

As I am thinking of using it in my project.
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Post by ORSM45 »

id say it would be an uneven number so that it wears evenly and doesnt upset the harmonics
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Post by 2car »

The diff commonly known as 4.88 is actually 4.875. 8 teeth on the pinion and 39 on the crown.
74 FJ40, 307, Hilux DBC, 35 Claws, welded rear.

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