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Old 15-06-2005, 01:58 PM   #13
Racecraft
they call me Tibbo
 
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Join Date: Dec 2004
Location: Brisbane
Posts: 6,163
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For an open diff:
Jack one wheel off ground
Make reference mark on tyre and another on the tailshaft
Get someone to rotate wheel two full revolutions
# of driveshaft turns = gear ratio
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