I have a '77 Cordoba with the T-Bar roof and so far have not been able to find weatherstripping for the tops on this car, any help here would be appreciated. For your Aspen (it being a f-Body) it may have the same tops as my '78 Lebaron (m-Body). If this is the case I had no luck finding weatherstripping for these tops OEM or otherwise. I did finally find a marine supply place that sold the seal for life-raft capsules for ships in 1 1/4 X 1 1/4 size. This seal I was able to slide into the track for the weatherstripping and it seals against the glass tops when locked in place really well. at the ends I had to do a little shaping with the dremel tool and then marry the new rubber to the existing door strip with the proper epoxy.