Back glass water leak

[BDnFL]

Car back home after extensive work including removing front and rear glass for paint.
Cleaning back window I see water dripping in trunk from under package tray area. Thinking it’s the glass I order butyl tape and 3M urethane in case the glass needs to come out.
I remove bottom trim and find that paint shop screwed in new trim clips next to where the old clips were. Never sealing the old holes. See picture.
What would be the easiest way for me as an amateur to seal those holes. There’s no rust in the channel.
I’m thinking of taking a tiny screw and using a dab of 3m urethane and screwing it in. Of course after cleaning area.
Tape with arrows are hole locations.
What do you guys say?

 

[Dutchrebuild]

I wonder why they didn't just use the existing holes? I don't like moving clips around.

 

[LowBikeMike]

I think you could urethane the holes but would not use urethane to hold the window in

 

[BDnFL]

Been thinking, maybe JB Weld on a screw rather than urathane.

 

[gkent]

Silicone is BS !! Urethane is the hot ticket. I tend to use it more and more because not only is it a great sealant, its tough and doesn't crumble like silicone AND its an amazing adhesive. I would squeeze it into the holes and wouldn't bother with screws - they'll just rust. Actually, I'd be more inclined to remove the clips the shop installed and put them back in the original holes - seal up the ones the shop drilled!

 

[eldubb440]

agree with the above......... however, sometimes the metal around the original holes gets thin and the holes strip out

 

[440 4 speed]

Silicone is BS !! Urethane is the hot ticket. I tend to use it more and more because not only is it a great sealant, its tough and doesn't crumble like silicone AND its an amazing adhesive. I would squeeze it into the holes and wouldn't bother with screws - they'll just rust. Actually, I'd be more inclined to remove the clips the shop installed and put them back in the original holes - seal up the ones the shop drilled!

Thank you. I knew there was something wrong and that is why I changed my post. I will delete mine.

 

[BDnFL]

Thanks for the reply’s. Definitely not using silicone.
Probably use the urethane when it comes in since JB Weld got no votes.

 

[themechanic]

I used a J-B Weld Seal Stix to seal a few pinhole in the floor of the El Camino. I used POR-15 Patch and fiberglass webbing in a few spots on the Cuda to fill some holes in the rear floor pan by a previous owner.

 

[Gripper]

POR 15 Patch

 

[BDnFL]

POR-15 Patch, looks good after looking it up as I hadn’t heard of it.
Maybe I can also use it on my roof rail gap at the quarter window.
Thanks to all !