Hello. I need to adjust the position of the load carrier cross bars on my 2007 V702.5T. They seem to be volvo oem and they are mounted to the eurorails. There is what appears to be a key slot at each end. I have no special key or torque wrench, and I don't know how it works. Any info appreciated.

 

Needed a T-30 torx tamper resitant bit.