Channel to hold door seal to roof frame above rear door
Seal channel to hold rear door seal. Attaches to roof frame and runs between the top of the B post and the top of the C post. It is number 27 in the parts diagram and there are 2 per car.
These reproduction channels require some work to make them fit properly, but they are still the best we can find.
It is best to bond these in place with a suitable bonding sealer, rather than trying to weld them.