The C means limited slip axle, I think the 9 is 3.55 axle ratio, but I can't find my chart. You can take your vin # and that code to a Ford service center and they can look it up.
H. Kent Sundling, Free Truck'nology reports and other truck mystery's revealed at http://MrTruck.com along with top power, fuel mileage and towing accessories for your truck, SUV and trailer.
Posts: 378 | Location: www.MrTruck.com | Registered: 17 February 2005