At best case, you want to trailer it so that none of the 4 wheels are on the ground.

At worst case (if your X is 2WD) you want to tow it with the rear-end raised up on a dolly of some sorts so that only the front tires are making contact.

If you've got a 4WD X and you have a worse case scenario it'd involve removing the driveshaft leading to the rear axle and tow it with the front of the vehicle raised up on a dolly.