Crossbar length dimension?

[BuckBronco]

Would anyone be able to give me a measurement of the crossbar they had the dealership put on their Bronco ?

Any help would be appreciated.

thabks!

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[Glamdring70]

This thread has a pretty detailed diagram on it.
https://www.broncosportforum.com/forum/threads/installing-yakima-railbar-crossbars—what-i-learned.2409/