You will need 83-92 4 cylinder Ranger rotors in the front and 83-92 4 cylinder/3.0 V6 Ranger driver side axles and drums or 86-97 Aerostar passenger side axles and drums. You could convert the front suspension to 87-93 style also and then use 85-91 Lincoln Mark VII front rotors. The rear is the same whether it is a 7.5 or an 8.8, they use the same axles.