Sorry for the cross post, but I am not getting any responses in the Mexico forum. I just know there is a FTer out there who can help me

I am on LAX-GDL-MZT for new years on Mexicana. We have a 1:40 connection in GDL.

I have never connected international before. Will we have to do immigration/customs in GDL? If so, is that enough time?

Thanks for any insight on the process in GDL and transfer to the domestic flight.