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Old 03-10-2008, 11:53 AM   #1
KCMO_HR_G
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Default what fluids required when changing Ring & Pinion

For you guys who have swap out your R&P, what fluids are required and what kind did you get?

I've got my 4.08 gear set from Z1Auto w/ install kit, the shims are available at my local dealership for when I know what size I need... I just need to pick up some fluids for the rear end and I'm good right?
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Old 03-11-2008, 03:13 PM   #2
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nobody's changed out their gears?
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Old 03-11-2008, 04:27 PM   #3
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just use the nissan fluid
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Old 03-12-2008, 07:37 AM   #4
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Any good 75w90 gear oil. I use Motul synthetic in my differential.
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Old 03-12-2008, 09:52 AM   #5
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Why would someone change out their final drive? Not judging just asking, total noob when it comes to gear and gear ratio, lsd's and stuff. I don't even know what an LSD is, but someone told me to get the NISMO one becuase I don't have traction control. Was looking into it but have no idea why I should do it, lol. I don't intend to drift or anything, its my DD and I don't drive it in the snow.
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Old 03-12-2008, 10:51 AM   #6
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LSD helps both yoru wheels spin together instead of 1 wheel spinning faster then the other. Ring and pinion gear sets either shorten your gears or lengthens. Higher the ratio the shorter it gets.
This helps the cars acceleration through every gear.
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Old 03-12-2008, 11:35 AM   #7
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Quote:
Originally Posted by xNeo
Why would someone change out their final drive? Not judging just asking, total noob when it comes to gear and gear ratio, lsd's and stuff. I don't even know what an LSD is, but someone told me to get the NISMO one becuase I don't have traction control. Was looking into it but have no idea why I should do it, lol. I don't intend to drift or anything, its my DD and I don't drive it in the snow.
Yea, just to elaborate on what Gooey said -

It's like having a 21 speed bike.

The 'stock' gear ratio is like being in speed '12'

The higher (3.5+) gear ratio is like being in speed '3' (you have the same engine power... in this case your legs... but it's being geared lower to provide more 'umph')

The lower (3.5-) gear ratio is like being in speed '18' (you have the same engine power, but its geared higher and provides less 'umph')

The key is to find the happy medium since cruising speeds on the highway can be affected by raising RPM's higher to reach the same speed.

That was an ultra basic description, but wikipedia or 'how stuff works' might have a good explaination w/ pics.
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Old 03-12-2008, 11:35 AM
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