Installed Kennedy supplied Bilstiens on my 03 GMC tonight and took a short ride. Very noticeable difference even though OEM shocks had only 8K on them. Did find a small oil leak in the right rear shock but not enough to make a difference. There's a big difference between single and and double action shocks. Remmember back in the late 40's when Plymouths rode so much better than Chev's and I think it was attributed to the shocks.