I used this site:
www.toys4rvs.com I ordered an extra bottom roller assembly and a top holder with the "T" plastic piece that connects to the small cylinder strut. Be sure to make extra roller pins and have on hand if one is lost (common problem). You can make these (no longer avail. on-line) by cutting a piece of round stock metal to the same length as the original pin. As you know, the roller assemblies must be tapped in place with a hammer. I suggest removing one leg at a time with some help of a ladder or support to hold up the awning and an assistant with the awning extended. After removing the slide cover, cut it in half for much easier removal next time. Add additional springs to each leg for better strap tention during retraction. This poor design's biggest problem is correct strap tention during retraction. If the straps roll up correctly and the spring tention is OK, then when you extend next time, the strap on either side unwraps correctly and does not wrap around, bind up, etc. This binding causes the roller assemblies/pins, and other parts to eventually break. If you can watch and keep the straps loose while extending, it will last alot longer. Just go slow while extending. Also, do not follow the tentioning alignment in the manual. Adjust for alittle less tentioning on both sides. The awning will still work just fine without the plastic parts being stressed so much. PM me if you have other questions. I have decided to baby the Carefree One Touch 12VDC awning along for awhile. There are replacement arms for it that have the new hydralic strut design. You can keep the original roller and shade. May get those later.