Followed dvkeuro and cool (Thank You fellows) suggestions to raise/lower the lever while car running and suspension bled all air perfectly. Now I got a smooth running rear suspension instead of a lowrider hard bouncy car. I still get very hard thump more pronounced towards the right side when suspension falls into a pothole or is compressed when the shock goes up; also noticed when reversing on uneven surface that the whole rear end assembly shifted slightly. No uneven tire wear is present. I understand previous owner had car for at least 6 months driving with hard bouncy rocky suspension. Besides shock bushings; is it possible that whole rear suspension assembly is loose or suspension to frame rear craddle (big) busing (No. 123 351 11 42) is bad; or the rear left/right arm bushings (No. 126 350 01 75) that connect to the chassis are bad?