Cut a slot down one side with a rotary grinder .

Mark and cut to the proper length. I used my lathe to get a straight cut, but that is not necessary.

Grind a small bevel to one end , then use a vice to press the plastic bushing into the metal roller. My rollers were in ok shape.

Use a 5/16" bit to ream out the hole to the proper size.

[This message has been edited by Daryl M (edited 08-29-2020).]

Use a hammer and punch to gently tap the plastic bushing out of the metal roller. I didn't get a good photo of the rest of the procedure, but it is pretty straight forward. Lube the plastic bushing with grease and slide it on the pin it goes on. If the pin is damaged, you will have to find another hinge to rebuild, but I had one good set. Last use a small piece of pipe or a deep socket and hammer to tap the metal roller onto the plastic bushing.

[This message has been edited by Daryl M (edited 08-29-2020).]

This probably should have been the first photo. I used a roller change breaker tool to remove the metal roller in the first place. A c-clamp will compress the spring.

Finished product

This is a photo of a damaged pin that would require replacement, and a photo of a c-clamp used to compress the spring.

THE END.