With the box properly mounted, route the intermediate shaft to the end of the steering column. Install the universal joint on the end of the column and mark the intermediate shaft so that you can cut it to the proper length. Routing can be a disaster: You need to ensure that there is enough clearance for the engine, the radiator, the exhaust system, and the brake and fuel lines. You must also keep the angles at the universal joints under 15 degrees so they can operate. Once everything clears and is assembled, use Loctite on all of the set screws and have the Jeep aligned.