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Old 08-12-2016, 12:43 PM   #6
katy
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Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
Default Re: What diff ratio do i have?

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Quote:
Pull your plugs and get your hand crank out,
Put it in 3rd Gear.
Make a mark on the jacked up tire at 12 o'clock and crank the engine over exactly 2 revolutions. When you hit exactly two revolutions, have a friend grab hold of the tire so it cannot move, or set the hand brake or whatever.

See where the mark on tire ends up:

Between 11 and 12 o'clock, ratio is 4.11
Between 12 and 1 o'clock, ratio is 3.78
Between 1 and 2 o'clock, ratio is 3.54
For this procedure you have to jack up the RH rear wheel, if you jack up the LH rear wheel the readings will be backwards.
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