Think of your TJ as your friend. Do you want to take your friend with you on your trip? If so, then you'll put up with your friend's little idiosyncrasies. My Jeep and I have bonded over many a trip. We have common shared memories. When it hurts, I hurt. It's a Jeep thing.
I've driven my 98 TJ (2.5/five-speed, 3.5" lift, 4.88 gears [dana 44 rear], 285/75/16" tires, etc.) up into Canada and Alaska multiple times, and literally across the country
multiple times. Usually, I'm pulling a small overlanding trailer, but not always. Noise is probably my main complaint. That and being slow sometimes on the highway (off-road not an issue).
It has been awesome as an overlanding vehicle (most often it's with the trailer). This is my primary overlanding vehicle. Usually you're going slower overlanding, and I like having the lockers front & rear. It is very maneuverable off-road in tight sections. You can't sleep inside it though - I've tried. The small home-made trailer makes up for any lack of space inside the TJ.
Here's my upcoming overlanding trip I'm leading (July/August 2022) with my TJ and trailer:
US Northwest - Idaho BDR (and then some!) | OVERLAND BOUND COMMUNITY
The trip will be about 4000 miles total for me, and about 1500 or so of those miles will be paved.
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Some helpful hints if driving your TJ on the highway for long distances and multiple days
based on my years of experience (in no particular order):
1. Have a decent stereo system. I'd rather have a relatively cheap stereo and quality speakers than the other way around. Crutchfield is my go-to.
2. Have a way to mount your phone on your dash. I use the phone's GPS function a lot on trips, and like having it in front of me. I've got this from Rugged Ridge and have been happy with it:
Jeep TJ dash phone holder - Video Search Results (yahoo.com)
3. Lots of threads are out there about what tools to bring (not trying to go off on a tool tangent here, but hear me out). My experience is what you need will all fit in a small lunch pail sized bag. 1/4 and 3/8" drive sockets (with extensions), assortment of wrenches, screw drivers, plyers, needle nose plyers, wire cutters, etc. - the usual basic stuff.
But think small. Like you need a set of torx drivers for those small screws that hold the sensors on the throttle body. Or sockets/wrenches to replace a battery or alternator or starter or O2 sensors in a parking lot - nothing huge. A code reader also comes in very handy. Other than having to swap out a rear driveshaft U-joint once on a trip, most of the few repairs I've done on a a trip (has been rare - the TJ's pretty reliable) have required the small tools.
4. Is your seat comfortable? Do your legs cramp after a while driving it? I put a set of RC 1.25" seat risers in my TJ and it made a huge difference with leg cramps.
5. Taking the rear seat out frees up a lot of space in the back. Mine's out, and I can put a fair amount of stuff back there.
6. Jeeps aren't speed demons. The 2.5 is even worse than the 4.0 (
but I love my lil' TJ!). Plan on being passed a good bit. That is ok. In the higher elevations in CO I had to go quite slow on the highway. Off-road in CO (picture below) was not a problem.
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7. Do you have H4 headlights like I do (a popular inexpensive mod)? Bring spare bulbs (more than one).
8. It should go without saying, but have a matching spare tire.
9. I like having the hard top. It still isn't quiet inside, but better over the soft top I ran. I haven't tried any soundproofing (like dynamat stuff). But mainly I like it for security reasons - I feel better knowing stuff is locked inside.
10. Currently I'm running a new set of Mickey Thompson Baja Boss AT tires 285/75/16" that measure pretty much within 1/4" of 33" tall. They are an aggressive all-terrain (which is what I prefer for the Jeep), with the snowflake/three-peak snow rating. They're an E-rated tire with three ply sidewalls (they are heavy - not helping the 2.5 engine any). I'm saying all this to say they aren't the smoothest riding or quietest tire. But I don't want a highway tire on the TJ - this Jeep is built for off-road and overlanding. So I make allowances and put up with a little more noise and road rumble (it isn't bad - just a little worse than the DC FC-II tires they replaced) for strong performance off-road.
11. Take pictures of your Jeep at places you go. Yeah - we ran Route 66 pretty much from start to finish. I took the long way home once.
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