Tried both ways and always leak. When mounted way I think is correct, don't match up to windshield or side seals. Argh.

well firstly, make sure your putting the correct one on each side. there is a left and a right. The numbers are on your seals so you can match them up. The slide into the channel - might require alittle hand lotion on them to make them go in easier. You can also adjust your windows to fill up the gap. for that you need to remove your door panels.

827 10 = left
828 10 = right

I assume its the roll ball vertical side seal your talking about.

The angle / shape goes at the top