Do you perhaps know the part #? I have the ride rite's on, but with manual fill from two bumper fittings. I was thinking about an onboard, but was worried about where to mount. I could live with that install for real. Also, how does it fill the bags, simultaneously with check valves, independently, or simultaneously with no check valves?
Part # 2158
Here is the kit I used with the bags
Firestone "Level Command II" Air-Rite air system provides instant ride control for Firestone suspension products including all Ride-Rite, Sport-Rite and Coil-Rite air bag helper springs within the cab of the vehicle. This allows quick inflation and deflation for various road and load conditions.
The standard duty compressor offers dependable lasting service and is ideal for moderate usage of the air helper springs. For example, weekend towing or RVing the standard duty system is a great choice.
Single gauge control ties the two air springs together providing equal inflation of both air helper springs. Ideal for towing or hauling centered loads.
They also do a heavy duty package that is a better but once again I did not need. My buddy bought the heavy and you can tell the difference in fill speed but thats really it. I think there is more to it that makes it better but I don't know
I went Simultaneously because my loads are alway even. so no need for duel guage seprate fills.