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rear diff ratio

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Old 22-01-2007, 03:21 PM
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banhambuilt
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Default rear diff ratio

the tag on the rear diff cover is all rusty on the rs200 and i can`t read the numbers of it

is there an easy way to work out the ratio (i have the rear cover off already).
thanks
dave
Old 23-01-2007, 01:16 AM
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banhambuilt
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Old 23-01-2007, 07:47 AM
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foreigneRS
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if you have the cover off you should be able to read it. it's written somewhere inside (on the crownwheeel iirc) in yellow pen

otherwise, you have to count the number of teeth on the crownwheel, and divide it by the number of teeth on the pinion.
Old 23-01-2007, 09:24 AM
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ian sibbert
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Mark the input and output flange then count the revolutions of each...it'll be near enough...i'd guess it'll be 3.62:1
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