Yesterday, I received my replacement glide pins and this morning started replacing them. For those of you who are also in the process of replacing your glide pins, here is how I did it and it has worked well.
First I measured the distance between two pins facing opposite each other in the hub. My distance between the two was approximately 3". I then cut a board just shy of 3" to use as a brace to go in between the two new pins needing installed. Once I put the board between the two pins, I inserted a shim and hammered it in to make it good and tight. Here is a picture of the board and shim in place holding the two new pins tightly in place.
Once I had the two pins secured, I used my heat gun to soften the pin on the outside of the hub. With the end of the heat gun about an inch away from the pin, it took about a minute to get the plastic to the point where you could see it getting soft and small bubbles appearing. (This will depend on the quality of heat gun you have.) Hear is a picture showing heat gun getting the pin soft enough to work with.
After I saw the plastic heating up and getting soft, I quickly put the heat gun down and with a nail set, I hammered down on it causing the soft plastic to expand around the hole in the hub. Here is a picture of one pin that is done beside another one that has yet to be heated. You can also see the nail set I used to spread the plastic pin. You will notice the hole in the center of the pin on the left from where I hit it with the nail set.
Hope this helps anyone else in the process of replacing the plastic glide pins in their hubs.
Tim