Are these those rollers in the guide? Found one in the bottom of the door split in two. Appears there is a roller already in there, or is there more than one in each door?

Click to view attachment

Click to view attachment

There are 4 per car 2 on each window. Part of the scissor assembly not sold alone. That's why we made them




https://900designs-container.zoeysite.com/w...r-two-regulator

I didn't readily see where the other one is located at then?

Here

Window base and part 3

How do you replace them ? I bought a pair for my '75 and Drew a blank when I opened the door....

I was wondering the same. Maybe it's not as bad as it looks.

Actually not too bad. The nylon old ones tend to come off in pieces, but if they don't they can be popped off with a pliers. You can use a pliers to press the new ones on. They will not break, but it takes less pressure if you drop them in hot water for about a minute.