[alfa] Control Arm Caster Bushing

[Tarus Balog <alfa@xxxxxxxxxxx>]

While working on my brakes this weekend, I noticed that the front upper 
caster control arm bushings are shot on both sides.

Two questions:

1) I've decided to replace them with polyurethane bushings. Is this a 
bad idea?

2) It looks like I can just remove the bolt that passes through the 
bushing, swing the control arm out of the way, replace the bushing and 
move it back. I realize I'll need to realign the front after I do this, 
but is it really that simple?

-T
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