Difference between R160 R180 LSD diff?
 

does any one know the part number which tells you the difference between the R160 and the R180.. i know the R180 is bigger than R160,that does not help if you don't have the two diffs in font of you..

[QUOTE=superman]does any one know the part number which tells you the difference between the R160 and the R180.. i know the R180 is bigger than R160,that does not help if you don't have the two diffs in font of you..[/QUOTE]

which yr did the diff come off?

i thought only the GDB (MY01 onward STIs) came with R180

earlier GC8 versions came with it also, mainly the STI-RA

The STI RA gC8 is also where you can get the 2 spot rear brake setup found on later my01 wrx's, that fits the R180. So you can keep your existing front brakes and replace the rears with that setup to avoid $3k brembo costs.

its out of a my00, but someone has put a different diff, was told it was out of a my02 sti.. but i need part number to see if its a R180.. planning to sell it.

r180
 

The R180 diff has a "K" on top of the casing.

Bump...

I gather the K on the casing is an accurate way to distinguish?

Are all LSD 2 way and plated? Or are there differences in models...
Also how can I know if a diff is 2 way and/or plated

[QUOTE=Jezza;548957]Bump...

I gather the K on the casing is an accurate way to distinguish?

Are all LSD 2 way and plated? Or are there differences in models...
Also how can I know if a diff is 2 way and/or plated[/QUOTE]

The bugeye STi uses a suretrac LSD front and rear. which is a one way mechanical.

[QUOTE=johnvk7;549008]The bugeye STi uses a suretrac LSD front and rear. which is a one way mechanical.[/QUOTE]

Suretrac is not a one way anything. Suretrac refers to the LSD type.

Terms like 1/1.5/2 way are used to describe plated LSDs only.

[QUOTE=Jezza;548957]Bump...

I gather the K on the casing is an accurate way to distinguish?

Are all LSD 2 way and plated? Or are there differences in models...
Also how can I know if a diff is 2 way and/or plated[/QUOTE]

K on the housing doesn't tell you anything.

There are white paint markings on the top of the diff that can tell you its contents if you have access to its interpretations.

ALL Subaru plated rear Diffs are 2 way.

And then there are R180 Suretracs (ADM GDB my01-my04)
and R180 Torsen Helical (ADM GDB my07 and ADM GRA/GRB my08 - my11)
Plate LSDs were only used in ADM GDB models; my05 and my06 STI.