Sooner or later, you might take a job that will require you and your family to move. You will likely incur significant expenses in the process, and if you are like most people, you will want your employer to pay for at least some of them. The following advice should help you handle this negotiation as effectively as possible. Focus on Your Interests
The Railroad Caboose. For more than a century the railroad caboose was a fixture on the end of freight trains. The real purpose of the caboose was to provide a sheltered vantage point from which trainmen could watch the cars ahead, sleep, cook and eat their meals, and do their paperwork. It served as the working headquarters of the freight conductor and his rear brakeman.
The purpose of a trackbar is to prevent movement of the axle/wheels from side to side. The adjustable trackbars will keep the axles centered (left to right) under the vehicle once lifted. Think of it as a right triangle. The axle is the base of the triangle, and the trackbar is the hypotenuse (diagonal line). If the vertical rise changes but the base does not, then the hypotenuse (the track bar in this case) would have to change or be adjusted to compenate for the new vertical height. If the trackbar is not adjustable then the axle will shift more to one side and no longer be centered under the vehicle.