Quick Question in Regards to Awning Replacement

If the groove in the end cap is where the fabric is attached to the roller bar, then you're good to go.

My roller bar didn't have a groove where the fabric was inserted, so I made one with a drill and a file as shown in my post here.

I didn't use any type of lubricant to get the old fabric out of the new one in. A sharp pull on the old fabric broke it free and it just came out.