Will a 05-07 legacy rear differntial fit a 98 lgt?

[98bk6]

So yeah I was looking for parts and I stumbled across a 05-07 legacy rear differential with a 4.44 ratio. They want $150 for it. I want to know if it'll fit my 98 gt wagon, before ibuy it. Any help would be awsome.

[Huffer]

The 98 GT has a 4.11 Final Drive. So it's a different ratio.
It most likely won't fit because of the axle differences, and my guess is that the 05-07 Legacy uses a multi-link rear suspension which means they likely have it mounted differently in the chassis.

For $150 it would be an interesting experiment to see what the physical differences are though.

[Wiscon_Mark]

It would help if we knew what transmission your 98LGT had. Automatic or Manual?

If its manual, you have a 4.11 FD, so no, it won't work. If it's an automatic, then it should be 4.44.

Is there a particular reason you want it?

[98bk6]

It would help if we knew what transmission your 98LGT had. Automatic or Manual?

If its manual, you have a 4.11 FD, so no, it won't work. If it's an automatic, then it should be 4.44.

Is there a particular reason you want it?


Mine is a manual, ok now I know.. Lol.. It'll point less going to a longer ratio. Thanks for the info, learn something new everyday, guess I won't be buying it anymore. :smt023

[98bk6]

The 98 GT has a 4.11 Final Drive. So it's a different ratio.
It most likely won't fit because of the axle differences, and my guess is that the 05-07 Legacy uses a multi-link rear suspension which means they likely have it mounted differently in the chassis.

For $150 it would be an interesting experiment to see what the physical differences are though.


It would be huh.. But now I know it's for an auto, so imma tell him no.. :smt018

[Wiscon_Mark]

It wouldn't just be pointless, it would fry your center diff.

You have to match ratios on a Subaru - the front diff is part of the transmission (well, it's connected) so its ratio has to be the same as the rear.

[98bk6]

Oh I see. That makes sense. Oh well back to looking... Lol.. :smt024

[Wiscon_Mark]

If you want an upgrade, the Forester XS (2003-2008) and Outback/Legacy GT (00-04) have 4.11 FD rear diffs with the Limited Slip feature.

[Huffer]

^^ I think so does the GC Impreza RS...?

[Wiscon_Mark]

Ah, yes, I knew I was missing a model. I'm not sure about the GD RS though...

[mike-tracy]

Only the 00-01 RS's had vlsd "for sure." An expensive option for 98-99 I think. Anyways my buddy's 00 RS has one but at over 200k miles the diff has lost it's VLSD-ness. So I recommend getting the lowest mileage one possible. I think the more offroading the diff does the faster it'll burn out as well.

[Wiscon_Mark]

Apparently tracking a car can really fry it as well. Probably depends on how you "track" a car though...

[r3v_v3ng3]

The 98 GT has a 4.11 Final Drive. So it's a different ratio.
It most likely won't fit because of the axle differences, and my guess is that the 05-07 Legacy uses a multi-link rear suspension which means they likely have it mounted differently in the chassis.

For $150 it would be an interesting experiment to see what the physical differences are though.


I have a 05 lgt (4.11) rear diff/carrier on my 98lgt. It does have vlsd. Its direct bolt on uses the same axles. I'll probably have it for sale in the future because I found a great deal on a rear mechanical lsd diff from a gc8.

I would look for this years model for a vlsd diff since it will most likely have less mileage than the older 4.11vlsd model

[98bk6]

If you want an upgrade, the Forester XS (2003-2008) and Outback/Legacy GT (00-04) have 4.11 FD rear diffs with the Limited Slip feature.

Ok cool imma start looking for it cause I want the vlsd, thanks :-)