That is one of the easiest rollers to swap wheels.
Be extra sure that the screw is turning VERY easily before you assemble the door. Take all weight off before adjusting.
If you have to force it at all, the screw WILL break like your old one.
I gave up using that roller after replacing the roller twice a few times.
Thanks for the reply. What wheel did you change to, or did you change the whole slider? How long did the rollers last each time? I thought about replacing the slider, but the price was around $1300 for a new 8 foot slider.