This may be an age old question, but it's new to me. I've been in my jeep for about 2 months now (1st time owner), thanks for the applause. Anyway, when I reach mach-1 (60mph), a strange phenominon accurs. My upper section of the half doors begin to push out, as much as 3/4" at the top. It's as though a tornado is trying to suck them off my rig. If anyone's interesed in solving my dilema, I'd appreciate it. I'm driving a 94 yj, with a best top that's about 3yrs old (in excellent shape otherwise).