Adding tailgate lights to my 1T. Anyone have the correct spacing?

[Chevy3+3]

I am adding tailgate lights to my dually. I know where the center goes and the 2outside lights but not sure about the 2 on each side of the center light. Does anyone have the center spacings between the lights? I bet I could get pretty close just by eyeballing it but thought I would ask.

Thanks

[dieseldawg142]

the t.gate lights on my crew are 9 1/2" apart exactly from center to center, the 3 middle ones, & the outboard lights are 21 1/2" center to center from the outer middle ones

[Chevy3+3]

Cool! Thanks for the reply!