37/9 rear diff = 4.11

supermoose · 09-07-2003, 01:32 AM

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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totoherbs · 09-07-2003, 05:10 PM

I would say NEO or Motul... both have LSD aditives that you can buy. And they will hold up to anything.

Jaxx · 09-08-2003, 12:15 PM

i have 75/90ns in redline in the rear diff and shockproof light weight in the tranny i have been very happy

ciper · 09-08-2003, 07:38 PM

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

09-07-2003, 01:32 AM	#1
supermoose Visiting NASIOC Timeout Member#: 9093 Join Date: Aug 2001 Location: SF Vehicle: 1995 RHD STi RA Ver2 swap starr	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 * Registered users of the site do not see these ads.

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09-07-2003, 05:10 PM	#2
totoherbs Scooby Guru Member#: 7321 Join Date: Jun 2001 Chapter/Region: NESIC Location: waltham, ma Vehicle: .... 122 IggPoints Work... ahhh... so tired.	I would say NEO or Motul... both have LSD aditives that you can buy. And they will hold up to anything.

09-08-2003, 12:15 PM	#3
Jaxx NASIOC Supporter Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Boise,Idaho,USA Vehicle: The 93 Imp W/EJ20K flat black	i have 75/90ns in redline in the rear diff and shockproof light weight in the tranny i have been very happy

09-08-2003, 07:38 PM	#4
ciper Scooby Guru Member#: 15543 Join Date: Feb 2002 Location: san francisco, ca Vehicle: 90BJ Legacy LS ABS AWD 946 Rio Red Jpn built	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