I'm not sure how you'd do it without the seperate reservoir. Looking thru your vehicle list, I'm guessing this must be for the Warlock. There's no way a Mopar PS box will fit in an A-body with a 5.7 Hemi. If it is on the Warlock, and if you aren't going to run AC...you might be able to make a bracket to mount your existing PS pump where the AC pump sits on the truck Hemi. Sitting here thinking how that might look....I guess it might be at best! You might do like the other member above, and just run it. Seems to be working on his vehicle. Good luck.