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Old 04-02-2019, 07:54 PM   #1
SandmanSaab
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Default sti control arms with lift

I have an 05 2.5i that I put sti control arms onto which from what I've read the axles are a little short but will be fine with the wider stance. Will lifting the car with forester suspension cause any axle issues with the control arm and lift combo?
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Old 04-02-2019, 08:20 PM   #2
Turn in Concepts
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Quote:
Originally Posted by SandmanSaab View Post
I have an 05 2.5i that I put sti control arms onto which from what I've read the axles are a little short but will be fine with the wider stance. Will lifting the car with forester suspension cause any axle issues with the control arm and lift combo?
Now you'd be getting the point that I would worry about things on the shorter axles.
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Old 04-02-2019, 08:39 PM   #3
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Now you'd be getting the point that I would worry about things on the shorter axles.
I was afraid of that. Would subframe spacers help?
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Old 04-02-2019, 10:04 PM   #4
Blktrax
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Is your 2.5i wagon or sedan?, because I just went through all of this on my Ď02 wagon lift.

And your better option is to go on Rockauto and order 2 sets of ACDelco rear arms , they are just reboxed SPC arms for half the price. Then you have infinite adjustability of camber/toe/trackwidth
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Old 04-02-2019, 10:37 PM   #5
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.....

Last edited by SandmanSaab; 04-02-2019 at 10:42 PM.
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Old 04-02-2019, 10:38 PM   #6
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Originally Posted by Blktrax View Post
Is your 2.5i wagon or sedan?, because I just went through all of this on my Ď02 wagon lift.

And your better option is to go on Rockauto and order 2 sets of ACDelco rear arms , they are just reboxed SPC arms for half the price. Then you have infinite adjustability of camber/toe/trackwidth
Wagon

I've seen those but why would I need those? I know the rear axles won't take much track width increase. My rear already has sti control arms and group N bushings on aluminum lateral links.
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Old 04-03-2019, 08:04 AM   #7
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The STi links are Sedan width, so thatís already 10mm per side extended, plus lift. You need sedan axles or the right inner joint will likely pull out if you do any serious articulation.

Also the SPC arms allow to correct camber , I attempted to use camber correcting bolts, but this leads to the tire being very close to the strut attempting to get anywhere near -1 deg. Iíll try and post some pics tonight.
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Old 04-03-2019, 09:16 AM   #8
SandmanSaab
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Quote:
Originally Posted by Blktrax View Post
The STi links are Sedan width, so thatís already 10mm per side extended, plus lift. You need sedan axles or the right inner joint will likely pull out if you do any serious articulation.

Also the SPC arms allow to correct camber , I attempted to use camber correcting bolts, but this leads to the tire being very close to the strut attempting to get anywhere near -1 deg. Iíll try and post some pics tonight.
This is the front suspension I'm worried about, everything in the back is the wagon track width. I understand what you're trying to say, my axles should be fine in the rear though.
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Old 04-03-2019, 12:50 PM   #9
jamal
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Well, does anyone actually know how axle length changes through suspension travel?

The axles could actually be compressed slightly with more droop travel and not extended. It depends on the locations of the cv joints relative to the ball joint and inner control arm pivots. The steeper the control arm angle, the closer the upright will be to the transmission...
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Old 04-03-2019, 10:16 PM   #10
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My Ď02 WRX Wagon current setup.

Front and Rear Ď04 Forester KYB Struts with King Forester Springs assemblies as ordered from Primitive racing. Rear with 1/4Ē Strut top spacer.

Front STi Aluminum Lower Control Arms with Sedan Axles Camber set to -1.2

Rear Sedan Axles with all 4 adjustable SPC lateral links , Primitive Front Trailing Arm Spacer , Ď04 Forester trailing arm bracket. Camber set to -1.5

Sway bars completely removed front and rear for max articulation.

Pre-Lift = Stock 02 struts and springs.

Post-Lift

Front Strut with STi lower arms.

Rear Strut before rear lateral links.

Trailing Arm Spacer and Forester Bracket

Before 1/4" rear top hat spacer, has slight rake to the rear.

Last edited by Blktrax; 04-04-2019 at 02:29 PM.
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Old 09-19-2019, 12:37 AM   #11
ImprezaWrxed
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Default 04 WRX wagon

Was the sti front control arms what fixed the stupid positive camber and negative castor?
I have the whiteline camber/castor tophats which fixed it some but not completely. Rear camber I fixed with eibach camber bolts in top of hub. I'm running stock Forester springs and struts so mine is slightly shorter than yours with softer springs.
Looking into front sti alum. Arms and sedan sway bar for front, and possibly sedan CV shafts?
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