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Rear Differential Noise

Posted: Sun Sep 17, 2006 4:17 pm
by point_7
Hey,

I've been searching the different Legacy forums but have yet to find an answer for a problem I've been having with my 1998 Legacy Wagon.
When I first had the car there was a distinct whine from the rear differential, that got louder the faster I traveled. A few days ago the noise stopped and a new noise appeared from the same area. It is now a metal on metal noise with a hint of a whine.
I'm new to the Subaru world and I was wondering what can be done about this situation. I have been searching for a differential that will fit my car properly but I cannot find what gear ratio I will be needing [3.90 or 4.11].
Does anybody know which other Subaru differentials will bolt onto my car and how long does the process usually take?

Posted: Tue Sep 19, 2006 4:16 am
by Legacy777
You may want to to check out the legacy forums on http://forums.nasioc.com/forums as there are more newer gen legacy owners over there.

They may be able to tell you for sure about the gear ratios.

Posted: Fri Sep 22, 2006 12:36 am
by 93forestpearl
There usually is a sticker on the back cover of the diff that says what ratio it is. My 5mt is a 4.111.

My best advice is to get a Haynes manual or download a FSM
from Josh's site as afr as knowing what is involved in swapping a diff.

http://www.main.experiencetherave.com:8 ... ual_scans/

Posted: Fri Sep 22, 2006 12:59 am
by Blackbart
They stopped putting the stickers the rear diffs in 95.
If your 98 Legacy has the manual tranny it should have a sticker on the tranny TY752VACAA, this is 3.90
I don't have the tranny numbers for the autos.