Went to the dealer and it seems my compressor for the auto leveling rear shocks is out on my 2000 Suburban 1/2 ton. I have searched and searched, but cannot find the part to replace it myself except for this one. http://www.arnottindustries.com/part_CHEVROLET_Air_Suspension_Parts_yid11_pid93_gid356.html Has anyone tried it? Is there any other part besides a dealer part out there. Thank you very much.