MaxxGeek Sliding Patio Door Roller Assembly for Andersen Part #1273704 (Pre-1982), Truth 31761A, Jeld Wen, Milgard, Marvin, 1-1/4" Steel Ball Bearing, Side Adjustable, 2 Pack

The roller assembly was easy enough to install, the hard part was disassembling the glass sliding door. My recommendation is that you watch a youtube video on how to properly remove your glass sliding doors. You will need a 2nd set of hands for removing and reinstalling the doors. Replacing the roller assemblies was very easy, just make sure you have a blanket to lay the door down so you don't scratch anything. The door works like new again. We are no longer struggling to open and close the door, it slides very easily.

They fit perfect and work perfectly.

Our very old heavy wood framed patio door was becoming nearly impossible to close, the rollers were very worn down and their float system deteriorated. We could find no replacements in our small city. I was so pleased to find a Roller Assembly online which stated 31761A would work in place of our Truth 30410 1980 model. As advised, we replaced both roller assemblies, easy to swap out and, though our door was a beast to manhandle, once back in place I'm super pleased at how smoothly it glides open and close. My young grandkids can now easily let the dog out with minimal effort. It's wonderful to have a working back door again!!

Worked well. We replaced the track and wheels and the door moves so smoothly now.

perfect, door works better than it has in years; found 2 for the price of one at home depot