[sporqster]

I was counting on the fact that the assembly doesn't move (cylinder full of hydraulic fluid) to help with the friction issue. Assuming a car on top of the assembly should break the static friction (a lot bigger than dynamic friction by an order of magnitude) and remove the assembly slop. As for set up, there is no set up- assuming you have all the bolts in the thing holding it together (obviously don't have all those details in the assembly yet). I was also going to slot the top 2 1" steel tube components and hold the top joints apart with LH and RH threaded rod ends so that I could calibrate the assembly.

Getting the car up on there - the whole thing is all of 3" high, so a little ramp would do it (that's a 225-45 15 sitting on it in the pic.). Or you could just lift the car and put them under, but then you'd have to jostle the car around to get the suspension to settle on it.