I had that occurring on 92, (in 2014/15) except DS rear. Eventually it pulled the window off the channel (or rather the channel off the window), then the window dropped.
Pretty simple to put back together, and in the process I cleaned all the window runs with soapy water and 2 rinses with clear, reinstalled the window on the regulator, had it pull out again, (the rubber there was quite old), so I glued it in with some 3M Windshield adhesive. Let that set, then reinstalled the regulator, window and runs. Then lubricated the runs with Slyglide. This helps a lot.
Worked so well I did the cleaned and lubed the runs on three windows out of spite. Never thought about the windows in that truck again until now.
I have a diesel-swapped (1HD-FTE) / 5-speed (H152F) LX450 and the kid has a
@Cruisers and Co turboed 40th Anniversary. So I still have a couple 80-series to molest when I’m bored. (Way more into the earlier trucks.)
Have you heard about the PHH, my friend?
I bought one of your kits, just to see for myself what it was about. Haven’t installed it, yet. I gotta say that it looks like a off the shelf regulated 13.8VDC 30A power supply (missing the label that is normally on the potting), a simple but nice bracket and a 40A/30A relay all pre-wired with a machined (tooling marks, no mold witness marks or flash) version of the Toyota connector.
If the $295 list price is what’s slowing sales, why not offer a kit of the bracket, screws, terminals and the machined connector, and reference the power supply to the (by all appearances identical) one found on Amazon for $60 or off Alibaba for half that)?
Go ahead and offer the fully assembled version for $295, some people will buy that just to reduce the time, complexity and risk of sourcing it themselves.