You bring the gumption. Restoration matching issues will be avoided since the right optioned components will be used to make the restoration. The Ford Mustang and Thunderbird used this style for a few model years. Since the "Limited slip" or Locking rear end
Rearend/Axle Length Calculator. The 1958s and 1959s have two dimples on either side of the housing and some have drain plugs. It is easy to locate the Axle Ratio from the Axle code, but first, we need to know how to get the Ford axle code itself. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . (often referred to as a "POSI") came to be a popular option and
3. control arm mount. When you buy through our links, we may get a commission. Finally, using bearing retainers that secure the axle at the flange, versus a C-clip style that secure the axles at the differential, means in the case of axle failure the axle flange and wheel will stay with the housing and not leave the vehicle, potentially causing brake failure and lack of control on the racing surface. There is a ton of aftermarket support for this axle (see Chapters 3 and 4 for more details). Note that most, but not all, applications will usually have one axle longer than the other due to an offset center section, so don't just measure one side and assume the other is the same. bearings, 28 and 31 splines, 57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang
The original applications are as follows: 1. Home / Performance Front & Rearends / Parts Department / Ring & Pinion Sets / 9-Inch Ford. Since 2011, V6 and V8 Mustangs have used Ford's 8.8" rear end, but before that many used a 7.5" rear. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. Proceed to match the code with its corresponding Axle Ratio column on the table to find the ratio. The bottom line begins with the ratio being the first set of numbers. 13 lovely chevy 10 bolt rear end gear ratio chart. So dont be surprised that most of these axles leak from the welds. Torsion Axle Vs. In this chapter I share a summary of decades of work on these axles. Ford 9.5 PRO GEAR* *PRO GEAR RATIO PART NO. weakest and had abrupt ending but welded carrier centers to tubes and a
applications due to the demise of most performance engine options in the
dimples. Hypoid offset is the distance between the centerline of the pinion and the centerline of the ring gear. Axle
for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes
It is an 8 inch rear axel so many parts interchange with many other years Fords and Mercury's using an 8 inch axel. also received the larger axle bearings housings. You can then enter any term, such as Axle Ratio,to search the guide. Unless you are building a Pinto or straight six-cylinder vehicle, you want to avoid it. 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. are you wanting the listing for the ratio tags? The N cases typically came with the larger Daytona-style pinion support bearing, and 31-spline axle shafts. The material and heat treating provide excellent wear service life, but doesn't handle shock loads as well as Pro 9 in gears. This complex fixturing and welding process, coupled with fuel economy concerns, is what eventually led to their production demise. Enter the required Overall Width, Pinion Offset (location), Brake Space and Drum/Rotor thickness to find axle length and housing width. housings. Identifying a differential hinges the ability to distinguish the two primary rear-end types---the 8- or 9-inch rear end---denoting ring-gear size. medianet_height = "250";
. for 1967-1970 (same as 1966-1969 Fairlane, Torino, Comet & Cyclone non
While the iron is molten, magnesium is added to increase the shear strength of the alloy. There are a few exceptions that you will see in the Ford Axle code chart. earlier housings used in cars from 1957 to mid 1960s tended to be the
All the Galaxies I have seen from throughout the 1960s
A copy of the Ford Axle Code Chart is linked below in this article. There may be a second dash and more numbers and letters on the top row if there are specifics that are unique for interchange information. can tell this is a 9-inch from the removable carrier on the front. The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. Our Mopar flexplate buyers guide will help. This is 2.25 inches for the Ford 9-inch and 1.5 inches for the 8.8-inch axle. The last set of digits on the top row on the right side is the date code. The center section is the differential assembly. WJ Handy Dad recommends safe practices when working on vehicles/homes and or with tools seen or implied in this video. For example, Ford says the 2018 F-350 Super Duty 4x2 regular cab pickup equipped with the 6.2-liter . The image below shows the Safety Label of a Ford Truck. TEETH 1 4.11 79-0097-1 37-9 1 4.29 79-0098-1 30-7 1 4.57 79-0101-1 32-7 2 5.14 79-0109-L 36-7 2 5.17 79-0112-L 31-6 2 5.20 79-0111-L 26-5 For Maximum . Both 8- and 9-inch axle housings are made from a series of stampings that are fixtured and welded together. First, the pinion shaft housing is removed from the front of the housing by removing five bolts. The
52"
For instance, if both the engine and transmission deliver up to 100 ft./lbs. Most of
This bearing and the casting structure surrounding it need to be carefully inspected as this is a common area for cracks. The
A forum community dedicated to Ford performance owners and enthusiasts. How can one verify "Posi" without taking the differential apart? This larger offset (hypoid distance) between ring-gear . The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. Leaf Spring: The Similarities And Differences. 28 spline axles are tapered and cannot be shortened and re-splined. 8.75, 9.25, Ford 9 inch, and GM's 8.25 inch . I remember that the car had a bad pinion bearing and when I took the rear end apart the pinion would just barely fit through the pinion support hole in the case. I reference these axles based on the ring gear nominal outside diameter in inches. and 429CJ cars.From what I have seen don't expect to find them in 390 or
We offer Ford Racing ring and pinion gear sets in 3.55, 3.73, 4.10 and 4.56:1 gear ratios for solid axles, as well as Motive Gear's 3.90 and 4.30:1 gear sets. You can use the social sharing buttons to the left, or copy and paste the website link: https://www.diyford.com/ford-axle-history-identification-ford-differentials/. Hot rodders and drag racers use 9 Ford rear-ends and their aftermarket descendants in just about everything not just Ford cars and trucks. Dont Be That Guy, Reversing Gears ~ Rescuing Ones Own Derelict 1967 Pontiac GTO, How To Paint a Lace Roof on the Cheap Using Grandmas Curtains, Exploring an Antique Junkyard in the Hills of West Virginia, Engine, Transmission, Chassis Swap Donor Vehicle Look-Up, How To Box-In a Differential / Solid Axle Rear-End Housing, How To Select Proper Rear-End / Differential Gear Ratio, Install Bolt-On Disc Brake Conversion Kit on 8 and 9 Ford Rear-Ends, 1966 Ford Fairlane 427 Twin Turbo Street/Strip RestoMod Build, How To Repair a Twisted Cable End with a Simple Homemade Tool, 1928 Ford Model A Roadster Build by OL School Garage, Engine / Transmission / Chassis Donor Search, Project Cars and Part Donor Cars For Sale. About | Contact | Terms | Privacy. If you are building a 9-inch Ford rear end for your project know you have plenty of options in gear ratios, axles, bearings, brake kits, and much more! These axles had a stout 2.25-inch ring gear offset as compared to a 1.5-inch ring gear offset of the later 8.8-inch axle. used the 9-inch rear, regardless of engine size. Ford intermediates with big blocks. Ford 8 Ford 9: CLICK FOR MORE INFO. but the link i was refering to listed codes by year and model. The 8-inch also was only available with 28-tooth axle shafts. There are a few exceptions that you will see in the Ford Axle code chart. On some tags, the first 2 digits don't appear on the tag, but they must be used to identify the axle. The leaking weld area is then ground down and a MIG or TIG welder is used for the repair. 74-75 medium duty large bearing, and. Well show you what to look for in this buyers guide. if one wants to use a 31-spline truck carrier in a car. There is a huge aftermarket support for this axle design. 1958-1959 two dimples on the back of housing, flat center band, some had drain holes. This particular pinion cartridge is well reinforced and much stronger than the stock production cartridge. Strange Engineerings heavy-duty lines of S-Series transmission and pinion yokes were designed by Strange and are manufactured from USA made high tensile strength nodular iron castings. it was very complete. The 7.5" rear end is also flat on top and bottom. 9-inch (cars) have a 5-on-5 bolt circle and the axles cannot be shortened. and this style of center carrier housing is best suited for drag cars or
actual car posi units, which were primarily 28-spline carriers, can be
replaced, and that is why it remained in use for so long. This is a major advantage compared to other rear axle systems because disassembly is faster and more convenient. 6. The middle number is the ring gear diameter in inches, typically an 8 or 9. Note: Rear axle ratios are available for 2008 and newer models. The other identification information, 9, as observed from the chart, indicates a 3.55 gear ratio of the Ford F-150. When measuring from the top left bolt to the bottom left bolt, the 8.8" rear end will measure 11" from bolt to bolt. It was introduced in 1957 model year cars and ended production in 1986, having been phased out in favor of the Ford 8.8 inch axle.However, aftermarket companies still produce the 9-inch design. This is an easy way to identify the third members, so youre sure to buy the correct axle. These tags provided information for the service technicians but wasnt that important for the vehicle assembly plants. Read more: CV Axle Boot: Overview, Signs, And Replacement. One of the primary reasons why the 9" Ford rear end has come to dominate drag racing is the ease with which thirdmembers with various ring & pinion gear ratios can be installed. Spring perches must be cut and re-welded in order
allow larger ring gear to fit. Axles Tubes Are 4-Inches. The 10,41 gear ratio is also great for off-road activities . and this style of center carrier housing is best suited for drag cars or
The additional straddle mount pocket bearing provides additional support to the pinion head during high-torque events. Like the H in our case shows a car with a limited-slip differential. Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale, 1967-1970 Mustang, Fairlane, Comet, Cougar, 1967-1971 Comet, Cougar, Mustang, Fairlane, 1967-1973 Mustang, Torino, Ranchero, Fairlane, 1967-1973 medium and big block Mustang and Cougar, 1966-1971 Fairlane, Torino, Montego, Comet, and other Fords with big-block engines, 1977-1981 Lincoln Versailles and Trucks . This will ensure that the correct replacement parts are purchased or salvaged from a junkyard to be used in the vehicle.