Auto Headlight Leveler Linkage Length?

I have a 2006 with the HID headlights and I'm replacing the linkage on the auto leveling sensor unit near the rear left wheel. Mine broke and half of it is missing. I have an adjustable linkage to replace it with but not a 100% on what length it needs to be set at, measured center to center of the attaching bolts. I had found this information at some point that I was very confident with, but cannot locate it. I did find one post where it was mentioned to be at 75mm, however, it wasn't confirmed how it was measured when the supplier of that measurement was asked.