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Old 05-18-2008, 09:31 PM   #1
mrjoshua007
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Default WRX into Legacy

I have a wrecked '02 WRX and I have been considering purchasing an older(98 or 99) Legacy GT wagon and swapping in the entire WRX drivetrain. Does anyone know what kind of obstacles I would encounter besides the obvious chore of swapping the wiring harness.
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Old 05-18-2008, 10:44 PM   #2
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Wiring is the hard part. Everyhing else is just swapping parts. Put in the wrx crossmember in the front to clear the exhaust. You might need to use the legacy driveshaft, IIRC it's longer. If you have both cars complete, it's not a bad job besides merging the wiring harnesses.
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Old 05-19-2008, 03:06 AM   #3
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I suggest not using the WRX cross member since the control arms won't match. Get a pre-2001 turbo cross member for best results.
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Old 05-19-2008, 09:47 AM   #4
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Quote:
Originally Posted by ciper View Post
I suggest not using the WRX cross member since the control arms won't match. Get a pre-2001 turbo cross member for best results.
You should just be able to shim it with a few extra washers and it will work.
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Old 05-19-2008, 12:24 PM   #5
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He said he'd buy legacy gt so it would automaticaly have a turbo crossmember.
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Old 05-19-2008, 02:45 PM   #6
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Quote:
Originally Posted by Einimas View Post
He said he'd buy legacy gt so it would automaticaly have a turbo crossmember.
I don't know what country you are in, but here in America our Legacy GT's didn't get turbos until 2004. A '97-98 GT won't have a turbo crossmember.

As for the question of which one is better? Use whichever one you have. If you buy a WRX front cut and it comes with a good crossmember, use it. There is pretty much no difference in swapping an LGT versus swapping an old Impreza. In fact, I am currently working on an '02 WRX swap into a '97 Outback Legacy...
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Old 05-22-2008, 12:11 AM   #7
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Quote:
Originally Posted by ciper View Post
I suggest not using the WRX cross member since the control arms won't match. Get a pre-2001 turbo cross member for best results.
I was planning on using the entire drivetrain, including the brakes and suspension.

Last edited by mrjoshua007; 05-23-2008 at 12:51 AM.
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Old 05-22-2008, 06:52 AM   #8
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Thats so much more work, I dont see the benefit.
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Old 05-22-2008, 11:14 AM   #9
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Thats so much more work, I dont see the benefit.
Not if you have a lift and/or know what you are doing. On the swap we are working on, we dropped the whole front assembly off of both cars as complete units. Engine, tranny, crossmember, control arms, brakes, and suspension all dropped out together. Unbolt it, rebolt it. Done. It literally took less than 2 hours from beginning to end with two guys and a lift.

Then we moved to the rear end and did the same thing.

You do realize that the GD chassis WRX is actually based on the BD chassis Legacy, right?
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Old 05-22-2008, 01:34 PM   #10
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Quote:
Originally Posted by Einimas View Post
He said he'd buy legacy gt so it would automaticaly have a turbo crossmember.
Only the 2004 and up GT has a turbo cross member. From 96-2003 the GT is a 2.5 NA

Quote:
Originally Posted by 69subaru360 View Post
You should just be able to shim it with a few extra washers and it will work.
Ghetto style is not my thing

Quote:
Originally Posted by Matt Monson View Post
Not if you have a lift and/or know what you are doing. You do realize that the GD chassis WRX is actually based on the BD chassis Legacy, right?
It would be easy if you swapped it as a complete setup but I personally wouldnt trust suspension bits of a wrecked car over similar spec'd non crashed parts. Aren't the front rotors on a 99 GT the same size as an 02 WRX? If not he could easily swap caliper brackets and rotors right?

I could understand if he was converting to the new bolt pattern but otherwise?
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Old 05-23-2008, 12:56 AM   #11
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Originally Posted by Matt Monson View Post
Not if you have a lift and/or know what you are doing. On the swap we are working on, we dropped the whole front assembly off of both cars as complete units. Engine, tranny, crossmember, control arms, brakes, and suspension all dropped out together. Unbolt it, rebolt it. Done. It literally took less than 2 hours from beginning to end with two guys and a lift.

Then we moved to the rear end and did the same thing.

You do realize that the GD chassis WRX is actually based on the BD chassis Legacy, right?
Thanks for the input, and I did know that all subarus are very similar, but I was not aware the chassies were that much alike.
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Old 05-23-2008, 01:03 AM   #12
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Originally Posted by ciper View Post
It would be easy if you swapped it as a complete setup but I personally wouldnt trust suspension bits of a wrecked car over similar spec'd non crashed parts. Aren't the front rotors on a 99 GT the same size as an 02 WRX? If not he could easily swap caliper brackets and rotors right?

I could understand if he was converting to the new bolt pattern but otherwise?
The damage to the car is all cosmetic, doors, fenders, quarter panels hood, and windshield, structurally it is fine. So I am thinking it would be cheaper to find a non-running car in decent shape and do a complete swap. I am looking at about $7-8,000 to fix the WRX.
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Old 05-23-2008, 01:40 AM   #13
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And even if the struts or knuckles or control arms were trashed, it would still be pretty easy to drop the engine and tranny bolted together, still attached to their respective crossmembers, and install them in the new car. This clearly isn't an issue in this specific case, but I am just saying it's still a pretty easy solution and makes no sense to go looking for an old Legacy Turbo of GC JDM WRX crossmember.
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Old 05-23-2008, 10:32 AM   #14
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Quote:
Originally Posted by ciper View Post
Only the 2004 and up GT has a turbo cross member. From 96-2003 the GT is a 2.5 NA


Ghetto style is not my thing


It would be easy if you swapped it as a complete setup but I personally wouldnt trust suspension bits of a wrecked car over similar spec'd non crashed parts. Aren't the front rotors on a 99 GT the same size as an 02 WRX? If not he could easily swap caliper brackets and rotors right?

I could understand if he was converting to the new bolt pattern but otherwise?
I'm sorry, but how is putting 2 washers in between a control and crossmember to take up a slight gap ghetto?

BTW 96-99 legacy and 02-07 wrx have the same bolt pattern.
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Old 05-23-2008, 12:10 PM   #15
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+1 on shimming the control arms, a couple of washers to take up the slack and use the WRX bolt.

The 99 LGT brakes are the same as RS brakes, WRX fronts are an upgrade for these cars.
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Old 05-23-2008, 04:39 PM   #16
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Quote:
Originally Posted by Dan Cech View Post
+1 on shimming the control arms, a couple of washers to take up the slack and use the WRX bolt.

The 99 LGT brakes are the same as RS brakes, WRX fronts brackets and rotors are an upgrade for these cars.

edited for accuracy. The bugeyes use the same calipers. It's only a size difference
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Old 05-23-2008, 06:49 PM   #17
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I'm still a little confused on this point, I would have sworn the WRX calipers I have (not sure what year they're from) are different from the RS/LGT... Are there differences between the years of 02-05 wrx calipers?
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Old 05-23-2008, 07:13 PM   #18
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The WRX calipers changed slightly during mid model year 2003. The 2003.5 and later caliper uses a different brake pad than the ones that preceeded them. But the 99+ LGT and RS calipers are the same as the original 2002 WRX and the first half of 2003. That's why I called them "bugeye" calipers since the OP of this thread is workin with an '02 WRX.

Now if he buys a '98 Legacy GT, those calipers will be different yet again. That's on the other side of the line to the previous generation. If he gets a '98 or any of the 95-97 non-LGT Legacies he will want to use the WRX brakes in their entirety.
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Old 05-23-2008, 09:03 PM   #19
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Originally Posted by Matt Monson View Post
Not if you have a lift and/or know what you are doing. On the swap we are working on, we dropped the whole front assembly off of both cars as complete units. Engine, tranny, crossmember, control arms, brakes, and suspension all dropped out together. Unbolt it, rebolt it. Done. It literally took less than 2 hours from beginning to end with two guys and a lift.

Then we moved to the rear end and did the same thing.

You do realize that the GD chassis WRX is actually based on the BD chassis Legacy, right?
exactly how i do swaps when it can be done.

it still blows me away why people dont realize they can do this
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Old 05-24-2008, 12:15 AM   #20
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Axles..... axles...... I spent so much money on axles.... if you are using the trans and rear diff... then the axles has to have the WRX inners and legacy outers.... unless the WRX and legacy is the same... I did a STi swap in mine...

I do recall the splines are different on both cars..
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Old 05-24-2008, 02:42 AM   #21
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I'm pretty sure the OP could use the WRX brackets and rotors on his stock hubs and calipers to get the "upgraded" front brakes.

I never suggested he use a Legacy turbo cross member since it uses the old bolt and tab style of sway bar mounts,,, that over time bend and allow the sway bar to swing freely.

Quote:
Originally Posted by 69subaru360 View Post
I'm sorry, but how is putting 2 washers in between a control and crossmember to take up a slight gap ghetto?
Because there is a part you can purchase that bolts up perfectly with no modification needed? Who says the washers wont slowly wear over time and open a small gap between the control arm and mount?

In the end there are many ways to skin a cat.
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Old 05-24-2008, 02:42 AM   #22
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Originally Posted by 2000GTB View Post
Axles..... axles...... I spent so much money on axles.... if you are using the trans and rear diff... then the axles has to have the WRX inners and legacy outers.... unless the WRX and legacy is the same... I did a STi swap in mine...

I do recall the splines are different on both cars..
I will be using the ENTIRE drivetrain out of the WRX, including the hubs and spindles, so that won't be a problem.
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Old 05-24-2008, 04:02 PM   #23
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I will be using the ENTIRE drivetrain out of the WRX, including the hubs and spindles, so that won't be a problem.
exactly!
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Old 01-04-2009, 09:38 PM   #24
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Most of the conversions I've seen on this site are geared towards the 96-99 Legacys. How much different would the job be when doing a WRX swap into a 2000 LGT? I apologize if this was covered somewhere already, I've spent the last 3 days searching this forum for answers and have had a bit of trouble finding anything geared specifically towards what I'm looking for.

To narrow things down, here's my situation. I have a 2000 LGT with a bad motor. I've been looking at the pros and cons of several different options: a) rebuilding the motor I have now, b) swapping with a WRX engine/tranny/drivetrain, or c) swapping with a newer LGT turbo motor. I'm fairly mechanically inclined and have rebuilt older 2.2L Subie motors before, but from what I've seen this job will probaby be much more involving. Can someone please point me in the right direction for this job?
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