LSD options?

ujnx2000

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If I understand correctly, the LSD in the 23+ Z is a clutch type.

What are the pros/cons of it over a helical type?

The helical would outlast a clutch type, so why do you think Nissan choose it?
 

Mugzilla

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Clutch type "wears". Helical ,if it effs up, you have bigger issues as either lash, or it eating itself.

If you are beating the crap out of your LSD that bad, you are a racer or drifter.
 

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Clutch type is usually a 2 way or a 1.5 way, that means its active during acceleration and deceleration. It can also chatter at low speeds when making tight turns. Its also tunable in how hard the lockup is and how quickly it can come on, but has to be disassembled to make any changes. Depending on the brand it may require special oil.

Helical type is a 1 way, its only active during acceleration and will only work when both wheels are touching the ground. Has smoother operation when just cruising around. No special oil is required as there are not clutched inside and less frequent oil changes required.
 
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ujnx2000

ujnx2000

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How often are we supposed to change the oil in the rear diff?

Ah ok.. i found it...

every 20k miles
 
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ujnx2000

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and i see brake fluid should be changed every 20k also...

1744063628836-ed.jpg
 

Mugzilla

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I have a factory brand new LSD on the way from Nissan. I plan on putting the Z1 bigger cover on it.

Doing a bunch of reading to figure out what fluid / break in additive (If any) I should use.

Putting in the urethane bushings too.
 
 






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