So I'm running a cummins 4bta, with a home made bracket for the stock power steering pump, '72 Blazer in signature. I would like to add an air compressor to this truck for, well reasons I shouldn't have to explain. I currently have both a York air compressor leftover from another project and a Wabco unit that is gear drive specific for cummins. I have a belt driven vacuum pump for my power brakes. The dilemma: which one do I run? Option one: sell/ trade wabco unit for dodge power steering/ vacuum unit and fab a mount for the york. Option two: mount wabco unit and modify existing power steering bracket. The issue I've heard with the wabco over the York is the ability to turn it on and off ( York) whereas the wabco runs constant. The other is the ability to cool the wabco unit. What do you guys think?