We've had plenty of customers buy our GT3 control arm upgrade kit
for their 987 or 981 Boxster/Cayman, and love the extra amount of camber they're able to get with them installed.
Some of you were so excited of the prospect of being able to better tune your suspension settings, that you took the outer control arms out of the box without checking to see which side is which, prompting a call or email to one of our friendly techs to point you in the right direction.
The problem with figuring out the orientation of the outer control arms (the longer of the two halves of the control arm), is that the actual control arms themselves (i.e. the bodies) are identical, with identical part numbers (same with the thrust arm bushings), and what makes them left or right is the orientation of holes of the thrust arm bushings.
As for the inner control arms (the smaller of the two halves), they will work on either side.
Just for clarification: Left - US driver's side; Right - US passenger's side.
|The outer control arms in their boxes. Not all boxes will have both stickers on them.|
|The outer control arms themselves. Please note the orientation of the offset hole in the thrust arm bushing.|
|Left outer control arm. Note the orientation of the offset hole in the thrust arm bushing.|
|Closer view of the thrust arm bushing on the left side.|
|Right outer control arm. Note the orientation of the offset hole in the thrust arm bushing.|
|Closer view of the thrust arm bushing on the right side.|