glass slider wheels

A quick learner from arizona says:
my patio slider is 40+ years old, single pane about 45"w x 75"h. Looking for two replacements
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Lauren from SWISCO responded:

Hello, thank you for posting! 

Please start by comparing your original roller assembly to the 81-281 to see what you think! 

Dimensions for 81-281
Dimensions for 81-281
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