can someone help me out? i have a 2001 bmw x5 4.4l with rear air suspension. rear air suspension means w/o sport suspension correct? i am in need of new shocks. i've checked out bavauto, ecs, getbmwparts, pelican, etc. does anyone know the specific part numbers that i need for the rear shocks? ecs mentions a rear air spring. does that replace the shock? the front is pretty standard, but i'm very confused for the rear and what exactly i need for my x5. someone please help! thanks!