I'm looking into adding hydro assist to pigpen and am considering my options. The first dilema, is how to tap the box. There is the typical way of drilling into the two veins on the side, and I actually have a box tapped like this already. The problem with doing it this way is that I've heard of people running larger tires having tire to PS box clearance issues and eventually the tire rips the hose off the box. Now there is a vendor on coloradok5 offering this cap that replaces the thin one on the end of a saginaw PS box. In addition to the cap, the top plate by the sector shaft is drilled and tapped for the other hose. This way they are both out of the way of the tires. Anyone have any thoughts or ideas about either method? Here's pics of the product.