How do I identify a Ford 9 inch rear axle?

To identify a Ford 9-inch rear axle, you can follow these steps:
1. Check the retaining nuts: One way to identify a Ford 9-inch rear axle is by checking the retaining nuts on the center section. Use a deep socket as a go-no-go gauge for the bottom two retaining nuts. If the socket fits, it is a Ford 8-inch housing. If the socket does not clear, it is a Ford 9-inch housing.
2. Look for a third member: The Ford 9-inch rear end has a third member bolted to the front of the axle housing, unlike many other rear ends that have a traditional rear housing cover.
3. Inspect the axle housing: The Ford 9-inch rear axle housing is typically made up of an assortment of axle stampings that are welded together.
4. Measure the flange-to-flange width: The narrowest production Ford 9-inch axle measures 56.375 inches in width. If you are measuring the drum-to-drum distance, add 0.200 inches to this value.
5. Decode the service number: You can also identify a Ford 9-inch rear axle by decoding the service number. Match the service number to an axle service code chart to determine the gear ratio and ring-gear size, which will denote whether it is an 8-inch or 9-inch rear end.
Remember, these steps are general guidelines to help you identify a Ford 9-inch rear axle. If you have any doubts or need further assistance, it is always recommended to consult with a professional or refer to specific resources for accurate identification.

How do you tell the difference between a Ford 8.8 and 9?

End there’s a flat spot in the in the housing. Right there and the 9. In is almost almost perfectly round the the pumpkin in that it also has an extra rib in in the structure.

How do I identify my Ford rear end?

The ID tag can be your friend. It will tell you the gear ratio, rearend style, and whether it has limited-slip. Also on the tag is an ID number, which, until 1985, included four to five letters, no numbers. Almost all 8.8s—and all post-1986 Ford rearends—have letters and numbers.

How do you decode a Ford rear axle tag?

Gives most of the Fords will have the same format. So your super duties your f-150 is your Mustangs. Pretty much follow the same setup. You’ll have the ratio you’ll have the differential. Diameter.

What is so special about a Ford 9 inch rear end?

One of the features which distinguishes this axle from other high-performance or heavy-duty domestic solid axles is that unlike other axle designs, access to the differential gears is not through the rear center cover; rather, in the Ford 9 inch, the rear cover is welded to the axle housing, and access to internals is …

Which Ford axle do I have?

1. View the Safety Compliance Certification Label on the driver’s side, front or rear door panel. 2. Find the word “AXLE” under the bar code.

What is the difference between Ford 9 inch rear ends?

Ford 9-inch rearends have a third “extra” pinion support bearing located at the rear of the drive pinion. Other rearends have only the traditional center two support bearings.

How do you identify a Ford 9 differential?

To recognize a locking or limited slip 9″ differential, look for a metal tag on one of the bolts that holds the center section to the housing. There is a gear ratio stamped on the tag. For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio.

How do you identify a Ford 9-inch differential?

To recognize a locking or limited slip 9″ differential, look for a metal tag on one of the bolts that holds the center section to the housing. There is a gear ratio stamped on the tag. For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio.

How do you identify a Ford rear axle assembly?

FORD AXLE IDENTIFICATION TAGS
The location of Ford identification tags will vary by model, but most are located on a carrier cover bolt. The Ring Gear Size (differential type) and the Gear Ratio will be printed on the tag (as well as whether or not the differential is limited slip).

How do I find my axle code?

Open the front door on the driver’s side. Locate the Truck Safety Compliance Certification Label on the door pillar near the door latch. Locate the two-digit code in the box labeled “AXLE,” which is just below the bar code.