Jeep’s original steering shaft assembly was not designed for the added stress of body lift kits and oversized tires. Either of these can cause premature wear of the steering shaft assembly. BORGESON has developed a replacement assembly with two precision needle bearing u-joints and a telescoping shaft. The telescoping shaft adds a measure of safety to the steering system. The original CJ steering system never had a vibration reducing device between the steering box and the column so a lot of road shock and vibration was transmitted up the shaft to the steering wheel. BORGESON offers an upgraded assembly similar to the CJ that includes a vibration reducer to dampen the road shock before it reaches the steering wheel and your hands.