I used the covers and backing material from Jim Carter. The quality of the products was very good. I had read in other posts that some people put down carpeting instead of the batting. I had the batting from the kit and wanted to use it. I also liked the idea of separating the springs from my backside. I ended up getting a very thin, vinyl backed carpet runner from Home Depot. Combining the batting and the very thin runner worked well.
In the attached pics, you can see a comparison between the original "V" shaped clip and the replacement weird shaped clips. By wrapping the cover around the frame and tucking it into the groove in the frame, you can replicate how GM did it. I'm including a pic that shows the frame sitting on a piece of gray carpet. In the pic, you can see the cover wrapped around the frame and a spring clip holding it in place to the left. Additionally, you can see the bends in the fabric where the permanent clips were installed into the frame, holding the fabric cover in place. The third pic shows a close up of the clip, in place.
