Got a sliding door from 1998. Don't know the brand but it is white vinyl double pane. I tried a roller that looks just like your 81-157 that I got from Menards. Didn't work because the wheels would not retract into the door enough for me to reinstall the door.
I believe it's because the notched out section on top is necessary to accommodate corner seams in the wheel slot hole. The dimensions between those two models are near identical, but the one does not have the notch. I was hoping you can confirm that the 81-158 is a functional equivalent to those in my photos. Thanks!
