As for instability of Jeep vehicles, is nothing new, at least in Europe (maybe because there are more twisty roads. For example, at the time of Jeep Cherokee XJ many arrived new inclined on one side (the driver side), so much that in some vehicles could be noted visually. Chrysler was saying at the time that tollerance was 3 cm (about 2 1/4 "). The fix was to put plates in suspension parts to rise the lower side. The other problem, that usually was the car going left while braking or in some curves, was due in severa lcases to different distance between front and rear wheels on right side and left side (not parallel axles). So nothing "new".