Got a Shell? Suspension Geometry Question.

[Rasta Monsta]

Need a quick question answered. . .

I neglected to take an important suspension measurement before removing it from the car, now I am trying to "make it up". . .My goal is to position the suspension on the floor as it would be when installed in the car, but unloaded. So, the assembly has to be properly "leveled" in relation to the floor. I am looking for a reference on the suspension that is level, or close to level, when installed in the car.

What I am eyeing now is the horizontal bolt that goes through the large bushing at the front of the t-bar mount. It looks parallel to the door sill. Is it? What about the flat end of the banana arm?