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Old 09-07-2003, 01:32 AM   #1
supermoose
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Member#: 9093
Join Date: Aug 2001
Location: SF
Vehicle:
1995 RHD STi RA Ver2
swap starr

Default 37/9 rear diff = 4.11

hey- i opened up the cover on my rear diff, it says 37/9 = 4.11 ratio. good stuff.

what type of gear oil should i run in the diff? i want it to lock up as much as possible

h
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Old 09-07-2003, 05:10 PM   #2
totoherbs
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.... 122 IggPoints
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I would say NEO or Motul... both have LSD aditives that you can buy. And they will hold up to anything.
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Old 09-08-2003, 12:15 PM   #3
Jaxx
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i have 75/90ns in redline in the rear diff and shockproof light weight in the tranny i have been very happy
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Old 09-08-2003, 07:38 PM   #4
ciper
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AWD 946 Rio Red Jpn built

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The fluid you use has nothing to do with the amount of lockup, its a sealed unit.

Adding friction modifiers will only decrease gas milage
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