Thanks. Yeah, i'll be taking the stock ones off asap. Also, what is the benefit of dropping the psi and how does one do that? My truck is driven on pavement 99.9% of the time.
As I understand it, the more air pressure in the air bump, the harder the thing is going to push back. So if you're in the dirt haulin ass and you hit something hard, you want that air stop to fight just as hard against the incoming axle, slowing it down as fast as possible. The higher psi absorbs more incoming energy, basically.
On the other hand, the higher psi also means that you might feel it hit over normal road bumps as the axle moves, right? Its trying to resist that movement...
RPG said that some guys have found that they like a softer feel around town, and that those guys end up dropping down to around 100 or 120psi. Then, when they hit the dirt they'll pump back up to 200psi (using only nitrogen! Don't use normal compressed air).
I've left mine alone for now. I don't have a high PSI gague and I don't have a nitrogen tank that will fill them back up. So 200 it is for now.
PS: Ya see that O-ring on the shaft of the air bump? Move/roll it all the way up. Now go out and put your truck thru your normal daily driver paces. Did that O-ring move? That's there to help you see how much of the bump you're using. In theory, you'd want that ring to never be at the bottom of the shaft, but maybe like 1/2" off? You can play with the air pressure so that that's where it ends up after you take the hardest bump you ever plan to take. You can do this for both on and off road situations, and then you have you're two PSIs to use.
Hope that makes sense.