Well, probably after nearly 40 years, these doors hold a power window assembly that actually works.. Wooohooo..
My bud Julius came over today to pick up his windshield for his 68 Charger R/T and while here, helped with the installation of the passenger door glass. Then, I got the rear support guide installed along with the window support for the regulator arm. I was able to save the original front guide felt.. Thanks for Dave Points for polishing the quarter glass seal trim, looks amazing. Now time to clean and button up all the door handle mechanisms for..
The glass is brand new from ECS with the exact Chrysler/PPG logo and date code as the original.

Video of operation;

https://youtu.be/5ZjfsHT0PTE