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Joined: Thu Jan 17, 2013 1:02 pm
Posts: 43
Location: South West Rocks
Vehicle: sj40

Post Posted: Mon Nov 09, 2015 5:59 pm 
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Hello
how do I tell what ratio my diff is . I have the centre out but cant see any numbers if there are any.
Thanks,

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Joined: Sun Jun 11, 2006 11:30 pm
Posts: 4003
Location: Brisbane

Post Posted: Mon Nov 09, 2015 6:10 pm 
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Count the teeth on the crown wheel, then count the teeth on the pinion.
Then divide the crown when by the pinion
EG 41 teeth on crown and 8 on pinion
41 divided x 8 = 5.125

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Joined: Thu Feb 26, 2009 10:30 pm
Posts: 13001
Location: Melbourne

Post Posted: Tue Nov 10, 2015 6:39 am 
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Unless someone has swapped in lj80 (4.56) or lj50 (4.88) diff gears, (or 1.3 axle assemblies) yours will be 4.1, same as all sj40's.

Steve.

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