If you are looking to add cross over steering, and high steer to your 2009-2016 Superduty Dana 60 axle this kit has all of the parts you will need. The high steer arms in this kit will also accommodate most full hydraulic and hydraulic assist steering systems as well. If setting up traditional crossover steering the drag link will be installed in the front hole on the passenger arm and the tie rod will be installed in the two rear holes. If 1 3/4 or 1 1/2 inch outer diameter tie rod is used the steering will clear a factory differential cover, and our Superduty Dana 60 low profile cover at full lock steering angle. 3/8 inch thick steel is used to manufacture the upper and lower plates for each arm and the inner gussets are fabricated from 1/4 inch steel. Included in this kit are two 1 inch diameter grade 8 bolts and 2 locking nuts, that are used to tie the high steer arm assembly into the factory tie rod end location. Installation requires drilling the original tie rod holes out to 1 inch and welding the high steer arms to the knuckles. Standard mig, stick, or tig welding procedures can be used, since the Superduty Dana 60 knuckles are cast steel instead of cast iron. Use of these arms requires 4-1/2 inches of backspacing or less on a 17 inch wheel or larger. When assembled these arms feature a 2 inch wide mounting width and 3/4 inch bolt holes, a perfect fit for our Superduty Dana 60 heim steering kit.Trying to figure out what year model of Superduty knuckles you have click here to find out!