Guardian Sliding Glass Door Rollers

Hello,

I have an old (30-45 years) sliding glass door. The rollers have been broken for a long time before I bought the house last year. I would like replacement rollers to nurse the door along until we can replace it as part of a bigger project.

I believe the door brand is Guardian. The last renovation to this kitchen was in the late 80's. The house was built in 1976. So the door is either 35 or 48 years old.