:wacko: I just purchased a '90 Full Size 5.0L for my son. I have changed all possible fluids etc so to have a benchmark as to when it was done. There were no visible signs of leaks until about 2 weeks I noticed oil from the Bell Housing and of course it drips onto the exhaust causing a burning odor. Also about this time and most often when on the highway the check engine light comes on. I 'm not sure if there is a correlation or not, but the leak does have me worried. Any help would be greatly appreciated. Thanks!