Top Guide and better rollers

Hello there. For the roller, can you confirm the dimensions match the 81-261? I am afraid we don't have a different roller that would work as a replacement; in general with this hardware, you want to stick with what you originally had. However, noisy function can be a result of the wheels or track needing to be cleaned or even replaced.

I am afraid we don't have a closer match for the top guide. A local hardware store may be able to assist you. I apologize for the inconvenience. 

I have a few other ideas for you to consider. We carry the 81-153 tandem roller, which might match up to your existing roller but you will have to make the final decision. We also have the 81-236 nylon wheel and axle kit 81-310 if you just want to replace the wheel. However, you say your doors are heavy and the nylon wheel might not hold up as well as the steel wheels. 

Also, a good idea would be to order a 75-077 to lubricate the track. On the top guides, I could not find one that matches up to your guide exactly. You will need to choose one that we've related for you and see if you can adapt it to your patio door. Thanks for posting! 

Looking at your photo it looks like you do have a type of nylon guide in the wool pile groove. Maybe they are worn. Take a look at the 80-045 top patio door guide to see if this would work on your patio door.