Subaru Rears...

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01-09-2004, 10:39 AM

jac

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Subaru Rears...

Noob question....aside from the different guts (open, LSD, Sure-track, etc....) are the subaru rear ends the basicly same from model to model and/or year to year?

For instance, could a WRX or STi rear fit into a GC8/forester/legacy chassis? Or do the upgraded cars have upgraded rears (larger ring & pinion, etc...)

Just curious!

thanks!

-jac

01-09-2004, 10:42 AM

international B

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the sti's use a r180 diff. the wrx's and 2.5rs's use an r160 diff. the older turbo legacy used an r160 diff also. the diffs also have differnt gearing. the sti 6spd has a 1:1 transfer case so the r180 diffs are 3.90. the wrx has a 1:1.1 transfer case so it has a 3.54 gear set.

01-09-2004, 11:07 AM

jac

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thanks for the quick reply! BWTM...

so, what are the differences between a r180 vs. r160? anything besides the gearset? How abou the new turbo forester? they have somethnig like a 4.44 gearset, right? but what type of transfer case?

What do the regular imprezas & legacy's use?

thanks!

01-09-2004, 12:17 PM

international B

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the r180 is larger the the r160. the inner gears are also larger. as far as the forrester, i dunno what it uses. i will try to find out though.

01-09-2004, 12:55 PM

Imprezer

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There are two types: Open and Limited Slip.

Then there are diff types of LSDs:

Viscous
Clutch Type
Positrack
SureTrack
etc.

01-09-2004, 01:00 PM

jac

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i got the open vs. limited...

But are they all the same size? the above post says no...

For example, the 1.6L miatas had a smaller 6 inch ring gear (weak) compared to the larger, stonger 7 inch gear found in the 1.8L cars. It is possible to break a 1.6L rear w/o a SC or turbo.

I was wondering if there are differnces liek that betwen modles/years with the subarus. Not planning on changing mine or anything, just want to know.

-jac