Okay, I found a minute. From previous forum discussions, some say that this is the correct rubber.
Steele Barn Door SealWhen I did my doors, I used the same rubber as the side doors. My rear doors leak. I wasn't too concerned because I have already painted the interior and the rubber is going to get replaced when I paint the exterior. The rubber listed above is what I'm going to buy to reseal my doors after I finish the paint. All this info comes from Tim (tclederman.)