Pro-Billet Distributor for Late Model 5.0L Fords Do not waste your money. Stick with the Motorcraft OEM distributor. My tach does not work correctly with this dist and the engine has a off idle stumble. I called MSD but they are useless. I was able to fix the problem by taking apart the dist and replacing the stator and TFI mod with new Motorcraft parts. I DO NOT recommend this product unless you enjoy needless agravation.