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#98: 02-20-2014, 12:21 AM
Front Lowercontrol Arm Rear Bushing: Whiteline KCA334
 
 covertrussian
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Front Lowercontrol Arm Rear Bushing

OEM bushings are notorious for ripping easily, usually last around 40k miles. I don't know why Subaru decided to switch to horizontal bushings, the arm needs movement to avoid binding otherwise the bushing rips. 04 FXT/Impreza's have a vertical bushing, which allows the arm to move a little more freely without ripping the bushing.



I was torn between AVO bushing and the Whiteline one, I found the Whiteline one cheaper, plus on the fly adjustable caster is really cool actually.
Part number: Whiteline KCA334



Start unbolting the lower control arm


Unbolt Front bushing


Unbolt the anti-swaybar end links


Unbolt rear


Used a prybar to pull it off


Getting the control arm off the lower ball joint is a pain. I had to resort to the ball joint puller, which pretty much always damages the ball joint boot. Which means a new ball joint is needed, or at least a boot.



Control arm finally off


Fun part was getting the stock bushing off



Then press the new one in


Put it all together, and set the bushing to add caster, I also marked where the caster setting should be so I can see where to adjust it while on the car.


Rear stud goes directly into the body of the car, Subaru doesn't use a subframe like Nissan does, which means the road noise/vibrations go directly into the body. Will see how much NVH is transmitted with these solid bushings.


Ready to be bolted back up, which takes a few tries...


The rear bushing will deform a bit since the suspension is at full droop.


All suspension bushings, just like anti-swaybars, should be tightened with full weight on them, this avoids bushing preload. Drive on ramps to the rescue, snuck them under the wheels and lowered the jackstands on them.


Now the rearward bushing is looking better


Tighten all the bolts up and your done.


Driving Impressions
These bushings rock! The car handles great after the bushing install! Front end has a ton more traction now, also feels like turning radius at speed has been greatly reduced too (not that this car needed it with an awesome 35 foot turning circle!)

NVH barely increased, not all that noticeable, but I am on 100k mile stock suspension so other creeks could be masking it.

Last edited by covertrussian; 02-22-2014 at 08:45 PM..
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