How do you identify a Ford 9 inch diff?

To identify a Ford 9 inch differential, there are several indicators and measurements to consider. Here’s a summary of the key points from the search results:
Indicators for Identifying Ford 9 Inch Differential:
1. Third Member Bolted to the Front: The Ford 9 has a third member bolted to the front of the axle housing and does not have a traditional rear housing cover like many other rear ends.
2. Axle Length Measurement: Measuring from the outside of the axle flange to the centerline of the pinion gear/nut will give you the correct axle length required. Note that most applications will usually have one axle longer than the other due to an offset center section.
3. Hypoid Offset: The hypoid offset is the distance between the centerline of the pinion and the centerline of the ring gear. This is 2.25 inches for the Ford 9-inch and 1.5 inches for the 8.8-inch axle.
4. Differential Tags and Stampings: Differential tags can be used to identify Dana and Ford differentials. The most accurate differential identification is provided by the bottom line of the tag number or axle tube stamp. Dana Spicer Differential Tags and B.O.M. Numbers can be used for identification.
By considering these indicators and measurements, you can effectively identify a Ford 9 inch differential.

How do I know what differential I have?

How to Identify Your Differential and Axle Type

1. Cover Bolt Count. Since most differentials have a unique cover bolt pattern i.e. 10-bolt, 12-bolt, or 14-bolt, counting them up will narrow the field and help you with identification.
2. Axle Flotation.
3. Get Your Spline In Line.
4. Spec Out Your Hub.
5. Pinion Size & Ring Gear Diameter.

How do I identify my Ford 9-inch rear axle?

And this lip right here is for to to house the larger bearing you can see the same lip on my 75. Right here with the 11 inch rear drum.

What years is a Ford 9 inch rear end?

The Ford 9-inch rear end, so named because of its 9-inch ring gear diameter, was manufactured from 1957 to 1987 by the Ford Motor Company and installed in some intermediate and most full-size Ford, Lincoln, and Mercury passenger cars, F-Series ½-ton trucks, and Econoline vans.

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 …

How do you identify a Ford 9 inch nodular case?

STRANGE PRO SERIES NODULAR IRON 9 INCH CASE
It can be identified by the stout horizontal and vertical ribs. As with all Strange engineering cases, “Strange” is embossed near the main cap area. Strange Engineering’s proprietary form of nodular iron is used, which is 8-10% stronger than typical nodular iron.

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 I identify my Ford Dana axle?

The Dana Axle Bill of Material Number will tell us what your axle model is, the ratio, and what parts your particular axle was built with. There should be a metal Dana BOM Tag held on by two of the diff cover bolts. There should also be a white Ford assembly decal on the right axle beam.

How do I identify my Ford rear differential?

It’s an 8 point 8 inch differential. Sometimes they’ll have a limited-slip.

Where is the differential number located?

Information about Differentials in GM vehicles can usually be obtained by looking at the RPO or “Regular Production Option” codes contained in the Service Parts Identification tag in the glovebox or the driver’s side door jamb (B-Pillar).

How do you identify a Ford 9-inch rear end housing?

How Do I Identify a Ford 9-Inch Rear? Ford 9 inch rear end identification is easy and can be accomplished with nothing more than a deep socket as a “go-no-go” gauge for the bottom two retaining nuts on the center section. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing.