Our link tower has 3 adjustable position that can be easily changed form 5.625", 6.625", and 7.625" from the center of the joint to the center of the axle tube. In the future if you decide to change tire size this design simplifies the adjustment of your link suspension. This prevents having to cut off your old link tower in order to maintain proper suspension geometry. The link tower is incredibly strong, it is made form 3/16" 100,000 min yield steel plate and bent for rigidity. You will also notice that the design of this link tower allows you to weld it together with fillet welds instead of butt welds. This is just another way that we designed strength into the bracket. These are great for attaching your upper control arms to the axle. They have an inside width of 2 5/8" or 2" and both have a 5/8" bolt hole.