Thanks for posting! The only roll guide we carry is the 21-174 Roll Guide. To determine if this might work as a suitable replacement, you'll need to carefully review and compare the dimensions. If they are not a match, there is a chance that you may need to change out the hardware.
Please let me know!
Hey there, Jasmine isn't here today but I'll do my best to assist you.
To start, it's not possible to determine what pin hardware you have based on the roll guide alone. The 21-174 is compatible with about a million different parts, so we would have to actually see what you have before we make a recommendation.
I specifically need to see each pin removed from the door and shown without obstruction. We will furthermore require detailed, written dimensions. I have to stress that your dimensions must be written down for our review, a photo of a tape measure will not be sufficient.
Finally, in answer to your last question, if your door is still in good condition then there's no reason to have to replace it.
