My co-worker is test driving a 96 4.6 hse over the weekend and the air ride will not work at all. He isn't dying tokeep it either. Is there some type of coil spring conversion he can do if he decides to buy it? What are some problem areas he needs to look at before buying? I noticed under the front/bottom of the engine there was a mass amount of oil caked up around what looked to be the oil pan where the oil filter is. Checked the oil and it was fine, maybe the problem is fixed? Thanks for any help!