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gingg
WHAT THE?Datsun diff talk
#1
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hi i have a datsun diff sitting around i just tryed to work out the ratio and im getting a 2.7 is that right? its out of a 620 ute?
??? 2.7 could that be right?

Posted on: 2011/1/27 0:06
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clyons8
Re: WHAT THE?Datsun diff talk
#2
No life (a.k.a. DattoMaster)
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No, not likely.

Posted on: 2011/1/27 0:37
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ddgonzal
Re: WHAT THE?Datsun diff talk
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Impossible. 620s use numerically higher ratios than that.

Posted on: 2011/1/27 5:02
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coxsteve
Re: WHAT THE?Datsun diff talk
#4
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When you do not have an LSD fitted you must turn both axles simultaneously and count the turns of the pinion flange,what has happened is a non LSD has spun on the sun gears and given a false reading.
Sun and planetary gears are in the differential centre and allow axles to rotate independent to one another to travel varying distances going around corners as the outside wheel and hence axle has to travel further than the inner wheel and axle.This is what causes single wheel spin and is why people want a Limited Slip Differential (LSD).
The above quick explanation is why they are called a differential in the first place.

Posted on: 2011/1/31 10:35
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Lemonhead
Re: WHAT THE?Datsun diff talk
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The little gear inside the diff which is driven directly of your tailshaft is your pinion gear, the big one that it drives is your crown wheel, count the number of teeth on both then divide the crown wheel by the pinion and this is a ratio e.g. 39 crown wheel teeth divided by 8 pinion teeth will give you a ratio of 4.875

I'm guessing from experience yours are 4.6:1 ratio.

Posted on: 2011/1/31 10:59
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