hey just read your post, and i have the same problem. Mines a 93 splash and ive almost got it figured out
what ive done is replaced the already smashed windshield and caulked all the spots on the firewall, drivers side where it is bent from an accident (before me). I know that sounds weird but around the brain and where the round electric plug goes in, didnt sit flat/seal. After all that, Still leaking
Now the last thing I have to try is replacing the window seals, the ones that rust and wind up sticking up in the air. cause I think its going thru the door to the top of the running board (bottom of door jam) past the two seals that dont quite meet, at the bottom obvisouly.
Also it doesnt matter what the trucks been thru as long as you got it cheap
