Advice on hardtop vents
I am a new jeep owner. I have a 2003 TJ and it came with a hardtop but the top needs a little TLC. It is missing the rear exterior vents (exhauster vents I believe) and I'm not sure if this is even the correct top. I have seen some '03's with no vents on their tops, so I was wondering if it would be ok to fill the gaps in before I resurface it or if that will cause some problems with wind resistance or gas mileage. I am trying to avoid the expense of replacement vents. Any advice? Thanks in advance.