air spring question
 

Hi folks, I think I may have a leaky air spring, when the car's off, the drivers side sits lower, when turned on, it levels itself. I am not getting
any warning lights. So, I decided to look into air springs, but I get a bunch of questions, such as, sporty package? susp level option? two axle levelling? anyways, there are like 3 or 4 different part numbers, could anyone please pinpoint exactly which is the one I need? it's a 2000, 4.4i, last 5 digits of VIN: LH02244
Thanks in advance,
Mario.:dunno: