dbramaged

I obtained a Yokomo D-1 Drift car from a friend that wasn't fully assembled. I finished putting the thing together but have run into a problem. After assembling the suspension, if you press on the car, the car bottoms out and never rebounds??!?! All four shocks are properly lubed, the swing arms move freely without the shocks, but they stick once installed. I've tried mounting the shocks in different locations and even stiffer springs but the shocks still don't rebound and the car stayed bottomed out. If I pick up the car, the wheels will then rebound, but not always immediately.

Does anyone have any ideas?