This is my 94 YJ. There are many like it, but this one is MINE.
I've had it for three months, so far all I've done is replace the door-mounted mirrors with CJ-style body-mount units.
The vibration isn't that bad - there is some, but not enough to affect visibility.
I had a problem early on with the wind blowing the mirrors back at highway speeds (65 mph & above), but I have now cinched the bolts down enough so that's no longer a problem.
The only other issue I've had is...
Always wanted a Jeep, and finally got my first about a month ago. It's a 1994 Jeep Wrangler (YJ) - only thing I've done to it so far is mount the CJ-style windshield-bracket-mount mirrors so I can run it with the doors off. Came with the hard top and a bikini top. It's just a 4-banger, but I'm...