My take on this. What bd said, and I wwould also add... It will bolt in, but , the 87-93 axles are shorter in length than the 94-04 axles. Not sure by how much. Perhaps this is what bd meant when he said narrow. I am unsure if they make longer axles for the 87-93 stangs. Probably be better to just find an axle from a 94-95. May be too much trouble with the 93.