Measurement between tank supports on 69'

Hey all,
Does anyone know, or can someone post the measurement between the two tank supports where the fuel tank drops in? When I pulled the parts out to replace, I know I wrote down the measurement, but I sure can’t seem to find it now.
I’d like to have the measurement at the back by the tail light panel and up near the trunk transition. I assume they would be the same, but you never know.
Thanks in advance!

Side to side is 30 3/4". Front to back is 22 1/2".

Thank you!