Upper Door seal question

78 c10 silverado regular cab. Finished painting cab and doors, installed doors...

I purchased a 12 piece door seal set from ebay, has everything except the seals that are glued directly to the top of the doors.

I have been looking at precision DWB 1111 73 which are for 73-77 model years.

There is also the DWP 1110 78 which are for 78-86 model years that have screw attachments on the ends.

The doors and cabs are the same throughout these years leading me to think either would work. What do you guys use for this?

It will make no difference like you said.
Question is do you need them?
First new door seals are generally too stiff on properly aligned doors. No need to add to that minor issue.
Second, my 77 has those, all seals original. 86 does not have the secondary seal and has newer door seals that are now finally broke in years later.
Neither has wind noise though the door seals.
I wouldn’t install them personally. Unless you have a decided air leak around the front or top of doors. In which case I’d probably try some cheap stick on foam to make sure it cures the issue before buying.
Unless you’re just set on it being “original.”

I am thinking from your advice here that I will go without these seals for now, get everthing else done, and see if they are really needed. Thanks for the response Grit dog.

I installed the secondary seals on my 81 Sierra Classic because it came with them. Problem is the aftermarket seals are not the same as oem and make it so you have to slam the door for it to close completely it has sat in a heated garage with the doors closed tight over a winter and still too stiff. I think I will try a different brand but have to remember the brand I have now.

WesN said:

I installed the secondary seals on my 81 Sierra Classic because it came with them. Problem is the aftermarket seals are not the same as oem and make it so you have to slam the door for it to close completely it has sat in a heated garage with the doors closed tight over a winter and still too stiff. I think I will try a different brand but have to remember the brand I have now.

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The softest weatherstrip I bought is from Precision. I parked my K5 in the summer sun for a few days to break in the seals, opened the doors and closed them when everything was burning hot.

I put those extra upper seals on my '85 a few years back. Helped with wind noise a bit. Everything I did helped a little at a time, sound deadener, new door seals, then those upper door seals. The next thing is the vent windows. I'd say put them on, it can only help

The second door seal is for water. Later years had a steel drip edge over the door to keep rain from seaping in. The seal recreates a lip th channel it around to the sides. Since the top is flat water pools and can wick in, it also prevents dumping it when you open the door. Wind noise is due to breaks in air flow ( front edge of door sits below rear edge of fender ). Modern cars and trucks use a lip seal on the door edge to fix both problems. I used a lip seal i bought at home depotto stop both on me 73 crewcab. If you want a home science project use a fan and flower or spray bottle to find noise. Use the fan to simulate airflow across gaps. Sift flour or mist water into flow. You see where air doesn't flow smoothly (front and back of window openings, door handles, mirrors)