My call is onboard air controller and a set of bags of your choice...not only does an onboard compressor offer on the fly control of the airbags but you got spare air if needed to blow up anything...once you have one you'll ask why did it take me so long to get this? Don't install the compressor in a dirty environment like under or outside the truck...mine is in my cab. The filter will clog in no time and burn it up. That's a pretty heavy pin weight but your truck has overload springs right? How heavy do they engage? Have you seen the bump stops for the overload springs?...I'm guessing here I'm not familiar with your trucks suspension. A piece of advice is not all air bag installations on a dually is straight forward though. That's for another conversation when we get there...Brackets can be generic and suspension travel has to be considered.