Don't check your nitrogen pressure with anything but a no loss chuck like the one at the bottom of my pic. Got this one earlier this year and it made a big difference.
No Loss Chucks | Schmidty Racing
[MENTION=130999]Inv4drZm[/MENTION] is right about the amount of volume and the high pressure. Just putting the regular guage on it will possibly result in over half your pressure being lost and you won't get an accurate reading anyway.
The seals in the res should keep the nitrogen that is stored in the end of the res separated from the oil by design, so if your careful you can manipulate the fittings with out losing very much oil. A thimble full of oil won't hurt the shock operation, but I think it can be done only losing a fraction of that amount if your careful. I just rebuilt my 5th gen shocks last fall, so I'm pretty sure you can do this. I actually lost about that much when I did my first install on the 5th gen years ago, so I contacted King and they said it shouldn't be a problem because there is several ounces of oil in each shock. I used almost a gallon of oil for all four shocks in my rebuild process last fall, so a thimble full is not that much.
Can you make an upright bracket (pictured) that mounts between the frame and the ASB bracket work?
I actually recommend anyone with nitrogen shocks of any brand that have schrader valves to get a set up like this. King has one that is a $100 but I think my set up works great. Once I properly checked my pressures, they were all lower than recommended. The secondaries I don't think were ever pressurized, they were at zero (yikes!). I have a feeling that all these shocks are pressurized when shipped, but not up to specified numbers. I pumped up my buddies Kings on his Taco, which were about 50 to 75 psi low. You should always check and fill pressures at full extension/droop of the shock. He could feel the difference on the way home. I know they felt better on both my trucks when done properly. Watch Ben's rebuild video for reference because he addresses nitrogen pressures at the end.
Anti Rock looks great by the way! Good Luck!!
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