My mechanic tells me that the ABS wheel speed sensors for my 87 5kcstq are (gack!) $400 a pop. I suppose this is another example of the tithe we humble subjects owe the pantheon of Audi gods, but in this case I'd like some pain relief. Is this a real price? Silly question, no doubt. Are there alternatives outside of used parts? Is deliverance at hand? Larry Mittell