Here is what the Dodge SRW (2006) looks like with the Energy Suspension blocks installed.

I think they are Energy Suspension 9.9109G 2-1/2". change G to R and they will be Red.
On that truck road stock height empty, but settled about 1-2" higher loaded. I put them on when I used to tow a 5er. They still were higher than level with Wolf Creek 840 loaded.
Wish I had a picture of them loaded, they really used to crush up pretty well.
But look at the trucks with factory air suspension. they ride level when loaded. I want my spring suspended truck to also ride level when fully loaded.