Once the Jeep is safely parked, start by looking at the front driveshaft. If it’s intact, move to the axleshaft U-joints. Look at the U-joint caps in the ears of the axleshafts to see if they’ve spun, cracked, are missing, or are partially out of the bores. If you see something that looks broken it probably is. If nothing looks broken you may have either broken a hub (if you have locking hubs) broken an outer axleshaft (stub shaft), broken an inner axleshaft, or if you are very unlucky you may have broken your differential or ring and pinion gears. Shown is a broken T-case output shaft. That’s bad. We’ll talk about what to do if you have a driveshaft failure in a future installment of this story.