Isn't wranglerforum.com a web wheeler forum like jeepforum.com?wranglerforum.com is the most active
JKOwners.com will give the best tech, most knowledgable members.
JKOwners.com will definitely have the best tech.
Another vote for JKOwners.com
JKOwners.com is the best resource for real tech and build information, but its mostly dead as far as activity goes. I've been a sponsor there for many years. If your friend is cool with searching for info there is TONS of knowledge and awesome builds there.
JK-Forum is another thats kind of died off but good information can be found there.
JKFreaks is another one...kind of dead too. LOL
Marcus
As others have mentioned, one of the better/best jk related forums out there is jkowners.com. A great community of Jeeple with a wealth of knowledge.A friend just landed an '18 JK Sahara. Any recommendations on a JK forum, as good as this one?