GC8 Aluminum Control Arms
10-12-2014, 08:57 AM
#6
The 2-3mm spacer/washer goes in between the subframe and the front control arm bushing to fill the gap. The GC front bushing is 2-3mm shorter than the GDs, so it creates a very slight gap.
The right way to do it is press out the front bushing and press in a GD bushing
10-21-2014, 01:13 PM
#8
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Join Date: Nov 2009
Location: Sunnyvale, CA
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Car Info: 02 WRX Wagon
I've got these in my yard if you're interested... Here is a quote from my sale post.
OK, they are technically GD STI model control arms with GC width bushings. That means these are non-caster adding, but 10mm wider track than GD wagon/GC sedan(?) width, ~1.5lbs lighter per side than steel, and the transverse bushing mount can be reversed and shimmed for extra caster like the last photo.
2004 STi Control arms in GC chassis, Alloy arm specs
OEM 02 WRX front control arm bushing 61mm
Aluminum control arms with 55mm bushing
With the rear bushings aligned (almost..), you can see the ball joint is farther out (~10mm) than the OEM 02 WRX one below it.
Caster mod - rotate the transverse bushing mount stub 180*, and add shims as needed. These ~5mm of shims along with the caster adding (v9?) arms gave me 5.1*L and 5.6*R caster
You can see how much that moved the front wheels forward in the wheel wells here..
2004 STi Control arms in GC chassis, Alloy arm specs
OEM 02 WRX front control arm bushing 61mm
Aluminum control arms with 55mm bushing
With the rear bushings aligned (almost..), you can see the ball joint is farther out (~10mm) than the OEM 02 WRX one below it.
Caster mod - rotate the transverse bushing mount stub 180*, and add shims as needed. These ~5mm of shims along with the caster adding (v9?) arms gave me 5.1*L and 5.6*R caster
You can see how much that moved the front wheels forward in the wheel wells here..
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