I just put in a new cowl seal, and cleaned/sealed all the rust on top of the dash so it has a smooth surface to contact when the windshield is up. Windshield frame, and tub cowl, were both rust free and solid (the rust was the dashboard sheetmetal, where it covers the top edge of the tub).
Driving in the rain last night, it leaked at both ends. Which I guess is good, compared to how it used to leak (in the middle, behind the dash, killing radios). At least I have the dash sealed to the tub again, lol.
I'm thinking of a heavy bead of Ultra Black RTV (because I have it) along where the seal meets the windshield frame, then bolt the seal to the frame, then a bead along the top of the tub, and put the windshield up. I never run with it down anyway - if I need bugs in my teeth, I get on one of my motorcycles.
Anyone have experience with this, or thoughts on whether it'll work? I don't mind wet feet (it is a Jeep, after all), I just don't want to start shorting out electrical stuff in the dash again.