Cab Top Seal - Which Way?

[pjsank]

How does the seal between the cab upright and the roof top go in? The seal has a U shaped profile, with a bead on one side. Does it go top of U down - round end up - bead to the outside?

[73series88]

What is a cap cab?

[pjsank]

huh?:sly:

[leafsprung]

bead goes to the outside

[pjsank]

Thanks leafsprung.