Looking for replacement on these parts

A home owner says:
Hello, first of all, trying to identify the make of these 15 yr old parts, and finding replacement for a right-hand and left-hand parts. Please advise. Thank you.
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Emily from SWISCO responded:

Hi there!

Start by taking a look at the following two sets of operators: our 39-031 & 39-032 or 39-155 & 39-156. Carefully look over the dimensions for each set and compare them to your original assembly to see if one of these match what you need. 

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