Having read a few build thread I realized that I, a new Jeep owner, don't know shit. I've already figured out that I don't need a 6" lift, 35" tires and a massive light bar just in case I go offroading one day (which I plan on, but I know my lane). Help us new TJ owners learn from your mistakes. What did you do that you regretted? What vendors suck? What "cool" gear is the mark of a poseur? I get that an angry bird grill is off the table, but what else? I had to learn the same on my MGB, but I'd like this to be a less mistake-ful path.
1.) Best advice is first to drive it for 6 months if you never owned a jeep before. Take it on some trails even if stock and see if wheeling will be a thing for you. Daily drive it for a while to figure it out and see if there are any kinks to work out. It seems the first thing a newbie wants to do is throw money into right away to "look" like the others they see in the wild without knowing where to start.
2.). Over this period research and read up on the most common modification -a lift- what it takes to do a PROPER lift.
3.) After that evaluation period and research, decide what type of wheeling you are going to get into. If you see yourself doing just street go to 31 for the looks. For lighter/medium wheeling then plan for a build out to 33's. You can do that in stages by going to 31's first which will still drastically enhance wheeling then finish the rest with 33's. Maybe invest in some used tires for this route. Any heavier wheeling save up and bite the bullet and build up to 35's all at once.
4.). Like others have said...do it once. Even if you don't plan to wheel, buy higher quality components. Have a plan to start with and get it right the first time. With a few exceptions like Rancho RS5000x shocks and some springs...you are going to get what you pay for. And if you can't do it, pay someone who can. Don't compromise shoddy work/components for safety.
5.). When you start with mods, spend the money on what is actually needed for the mechanical build and don't cheap out. Save the spending for the fluff until later...bumpers, auxillary lights, plasticrap, winch,etc. That stuff won't impact the ride or improve the mechanics of the rig.
6.). Do not buy cheap LED headlights. Stick to a Truck lite, JW Speaker...something at that level. Don't get sucked in by halos and RGB.
7. Have fun with it. You'll make a lot of friends and learn a lot along the way.
8. Nothing is wrong with a stock ride. One that is well kept and maintained is a gem.
9. Never wheel alone.