I went through 3 aftermarket A-pillar sets from ebay. I never blame those companies, as I'm not the most mechanically inclined and blamed them not working on me. This last set ended up with the driver's side duct-taped down everywhere to keep it from flying off, and also so that I could go through the car wash. I'd finally had enough of the duct tape coming off, and it looking like a hooptie, so I ordered max strength duct tape, and super strength double-sided tape (both from Amazon). Double-sided tape claims it holds up to 300 lbs. I read that and though 'Pffft. . .suuuure it does.' But I was out of options, as we're going on a long road trip tomorrow, and the wind noise from that A-pillar piece arching up, coupled with the duct tape flapping, is enough to drive me bonkers.
Took the A-pillar trim piece (only driver side coming off) off today, and placed the double-sided tape everywhere on the trim piece. Now I understood why they say it holds 300 lbs: it was a nightmare to work with, as my fingers and hands kept getting stuck. Was getting aggravated, then realized: this is going to work. Installed it, fully expecting it to come right off, at which point I was going to say 'f*** this' and go in and chug a beer. But it held. Could not believe it. Only placed one small piece of duct tape at the top while the glue from the tape fully adheres and cures. I'm not waiting for Ford, because they're likely going to end up saying 'We're no longer supporting that generation, because that was 3 generations ago.' This setup will definitely hold until I get rid of her.
Just trying to help y'all, because like you: I was at the end of my tether. Hope this helps.