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Old 06-09-2019, 07:42 PM   #1
no694terry
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Default Control arm widths

Sorry if this is a dead horse but I can't find what im looking for. I have an 02 wrx front subframe with 98 forester control arms. I had axle bind from sitting so low so I got 05 impress axles that were shorter and it helped but I still have some bind, that and my tire rubs frame a little so I'd like to widen the front track a bit. Are there "wider" control arms or do I just go ahead and build a set?
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Old 06-10-2019, 02:22 AM   #2
binny
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GD Sti are about 20??mm wider (to the ball joint) the nolothane arm kit has the extra castor as well
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Old 06-10-2019, 07:57 AM   #3
no694terry
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I'm only looking for about 10mm each side, I cant even find out if the WRX GD arms are wider than the SF Forester arms
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Old 06-12-2019, 04:04 AM   #4
binny
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Not sure you can check out the published track width and see what the difference is or measure some if you can
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Old 06-12-2019, 06:15 AM   #5
Suryank
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I'm only looking for about 10mm each side, I cant even find out if the WRX GD arms are wider than the SF Forester arms
+1
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Old 06-12-2019, 07:32 AM   #6
no694terry
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Not sure you can check out the published track width and see what the difference is or measure some if you can
i've googled track widths, theyre all over the place so i dont know what to believe. One guy on IG helped me out and measured his Aluminum GD Sti arm, its the same as my SF and I assume that one would be the widest of the GD's so looks like I'm just goign to have to make my own custom wider set
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Old 06-13-2019, 07:44 AM   #7
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Youre right, info is all over the place.

I've read that it's +10mm width on each side for the 06-07 wrx sedan aluminum control, but can't personally verify this, and might be just repeating misinformation. I actually put them on my 02 wagon and didn't notice any difference. Here is a picture of them lined up. I don't think this helps you much, but it's something. Courtesy of our friends over at legacygt



Sedan axles are supposed to be +10mm over wagon axles on 02-07 imprezas, so you might consider trying different axles too.
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Old 06-13-2019, 09:16 AM   #8
no694terry
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Thanks. I have 05 wagon axles in now and it helped. I had a guy on IG send me his measurements on the GD sti arms and they were the same as my SF arms. So I started to just build a custom set last night. Debating on a tube brace or a plasma cut sheet metal web thing as a stiffener. They're about 13mm wider. Should solve any axle bind issues and the slight rub i get at full lock, plus all the potential handle benefits

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Old 06-13-2019, 07:35 PM   #9
bdubblu
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Quote:
Originally Posted by no694terry View Post
Thanks. I have 05 wagon axles in now and it helped. I had a guy on IG send me his measurements on the GD sti arms and they were the same as my SF arms. So I started to just build a custom set last night. Debating on a tube brace or a plasma cut sheet metal web thing as a stiffener. They're about 13mm wider. Should solve any axle bind issues and the slight rub i get at full lock, plus all the potential handle benefits



Not a tube brace. Weld in a gusset. Or as you put it “sheet metal web thing”. It’s not like you’ve got a z axis to triangulate with, for instance like a roll cage. So tubular bracing is not a great idea.
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Old 06-13-2019, 08:12 PM   #10
jamal
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There are two widths of that style control arm. The 1st gen impreza or GG wagon arms, and the 02-07 sedan arms. The difference is somewhere in the 10mm ballpark.

The 2nd gen foresters got the "sedan" width control arms. 1st gen are the narrow ones.

The 04-06 usdm sti arms are aluminum and add caster but maintain the same width.
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Old 06-14-2019, 06:49 AM   #11
no694terry
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that arm up there with my son is a first gen Forester arm and it measured the same 13 3/4" as an 05 Sti sedan arm. Unofficially because our measuring techniques aren't the best

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Old 06-15-2019, 06:45 PM   #12
no694terry
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Had a tie rid issue after I aligned it

Before



After. Moog ES800303 tie rods for 07-11 Honda CRV



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