I pulled a 4x8 from u-haul from Ohio to CA. It wasn't too bad of a pull. But, 4 weeks after I got out here, my master cylinder failed because the brake system got too hot, boiled the fluid and ruined the rubber seals inside the bore of the cylinder. I even have a manual and used the engine as a compression brake as much as I could and still had problems. So, I would advise against it, unless you plot a route that minimizes the amount of mountains you have to pull.
If there's a will, usually there's a way, but then you get to that bolt that you still can't get to with two extensions, two universal sockets, and a contorsionist midget trying to help you.
1999 XJ Four door, mostly stock for now, but I am in the process of building a custom plate bumper.