I don’t understand the reasoning for the original owners logic to install the upper cup bolts the way it was done. The upper cup bolt would normally come up through the center shock tower larger hole. This is the part where the shock would be bolted from the top side.

The photo below is showing the hydraulic hose (used as an air line) coming straight out of the center hold that is commonly used for the upper cup bolt. I think the hole was used because the heavy large diameter hydraulic line required a lot of wiggle room. One characteristic that is common for hydraulic lines, is the amount of movement when hydraulic fluid or “juice” is used to transfer energy.

I plan to use the smaller hole for the air line hose. It may have to be drilled to a larger diameter but it should work out nicely after installing a protective grommet.

The only part of the original air ride system I plan to use is the lower bag cups. The cups I have now are not as tall as the model that is currently available at the local air ride shop. The difference is not much, approximately 3/4″ but that’s significant when you’re trying to lay frame.

Using a 5/8″ bolt instead of the 1/2″ is another plus for upper bag setup. Also, the having the centered in the middle of the cup will allow a cleaner installation.

Another regarding the upper cups is the material used. The original setup seemed to use 3/8″ tubes while the new cups are 1/4″ tubes. There is obviously a different in overall strength but I don’t think it will matter for the application use.