mkirsch wrote:
If the rear is only compressed 2" from unloaded height, then the truck isn't even riding level yet.
You don't need airbags, you need to adjust the pinbox on your trailer or raise the hitch so it tows level.
2" squish with Timbrnes makes more sense. Fords are tough, but a 4200lb pin weight would drop a F 350 a little more than that.
So, yes, put some airbags on it. IMO they all fit the bill.
In cab control and onboard air is nice if you are filling and dumping the bags frequently.
Otherwise, a dinky plug in 12V air comp will air them up easily while on the road. Just plumb the lines to somewhere convienent.
Note, using the timbrens, presume they were set where you were riding on them when loaded, will have a more stable "harder" ride than being on air. Depending on how soon your overloads engage, you may want to add stable loads or similar to go with the bags if you're bouncing on the bags.
Try it first with bags only and it's easy to throw some stable loads or home made spacers on it if needed.