22. You’ll want to make sure that you truck has the required clearance before drilling. Our kit required 6.5 inches from the top of the frame to the top of the leaf spring, as well as 6.5 inches from the framerail to the inside rim edge. The top bracket must not extend above the top of the framerail, and here you can see that we did not have enough room when mounting the assembly behind the axle. Mounting it in front, however offered the necessary space, and kept the assembly more perpendicular to the ground.