Front or rear? Your best bet is to visit any salvage yard and have them look up the part in their "Hollander" guide. That is a large, very expensive book that lists each part for every year and model, with a code number. You look that code number up in the back of the book, and it will list every application that could have used that part. They are going to ask you a bunch of questions, and they may have to physically look to see which axle design you have. There can be more than one axle for the same truck. Even when you find a matching axle housing, you must use one with the same gear ratio as the original. If it is different, the front and rear wheels will try to turn at different speeds when in four-wheel-drive. That will stress the transfer case, and make the truck impossible to drive. You also need to find the same brake system. There could be rear disc brakes or drum brakes. Also, the diameter of the pistons in the calipers or wheel cylinders are carefully matched to provide balanced braking, front-to-rear. Those brake parts will be different for vehicles with different options packages if those packages have a substantial affect on the vehicle's weight distribution.
Be aware too that Ford is famous for making major mid-model-year changes. You must often supply the vehicle's date of manufacture to get the right replacement parts. That is found on the sticker, usually on the rear of the driver's door opening.
Friday, March 24th, 2017 AT 5:18 PM