Hi,
I don't believe that is adjustable. Here is a video of an F type but they are similar set ups. Also, there are not procedures for the rear alignment which is a good indicator that this is not adjustable.
As you will see in the video, normally this means that something is bent or worn so you will need to check over the suspension.
https://youtu.be/ah8OJC2o7aQ
I included the alignment specs just in case you need them, however you will need an alignment machine to check them so if you find something bent, after you repair it, I would suggest having the alignment checked to ensure that wheel is back in spec.
Let me know if you have questions. Thanks
Image (Click to make bigger)
SPONSORED LINKS
Tuesday, August 27th, 2019 AT 6:10 PM