Anyone know? But if youre looking for an original, they can be spotted quite readily even without an axle identifycation tag. 1972 and earlier, 31 spline axles have the ability to be shortened. 1957 . Variations The image below shows the Safety Label of a Ford Truck. Save my name, email, and website in this browser for the next time I comment. 66-75 large bearing, 3. How To Identify 9 Inch Ford Housings Chart via Speedway Motors. of course most desirable is the N case, first used on the 427 Galaxies T & C FORD TOP LOADER 4 SPEED WIDE RATIO 2ND GEAR 31 TOOTH showing . duty.And believe it or not, they were also used in some FE equipped Ford The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide. It's uncertain if this E There are even different pinion cartridges that have been available from the various production years and models for this axle. trucks varied more, early half ton trucks got the 28-spline axles and Now you can see the C4AW-4025-B part number on the lower left unit, which verifies it as a nodular unit. the Broncos from 1966 to 1977, they stayed with the 28-spline units. 28 spline axles are tapered and cannot be shortened and re-splined. Ford 9 Inch Rear End Gear Ratios Chart1969 impala ss 427 4 speed. That is your vehicles axle code. This bearing and the casting structure surrounding it need to be carefully inspected as this is a common area for cracks. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. Ratings and reviews are provided by customers who have either purchased a vehicle or visited a dealership for service. Some of the 9-inch truck differentials will have an exaggerated hump on the rear cover to . On some tags, the first 2 digits don't appear on the tag, but they must be used to identify the axle. Its called a 9 inch because the ring gear measures 9 inches. Now that you have identified the axle code, let us know the axle ratio. The WFE-V2 helps us fi nd the decade of the 1970s. The first two digits of the axle code identify the ratio and capacity of the rear axle. Restoration matching issues will be avoided since the right optioned components will be used to make the restoration. The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. In order to verify a nodular unit, you need to look on the inside of the casting. 8.75, 9.25, Ford 9 inch, and GM's 8.25 inch . Ford 9 inch Gears. Some axle shafts can be shortened and a new spline machined in place. 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. The Ford 9 inch housing is a semi-floating, drop-out axle. The Ford Axle code will also help you identify your particular models engine capacity and the year/vehicle make. Pairing your vehicle with the wrong axle components will not only damage your vehicle but cost you a lot down the line. The material and heat treating provide excellent wear service life, but doesn't handle shock loads as well as Pro 9 in gears. The Godfather of Performance Axles-The Venerable Ford 9-Inch, Ford 9-Inch Axle And Bearing Retainer Retains The Axle In Case of Breakage, Checking A Ford Axle With a Deep Socket To Confirm If It Is a 8-Inch or 9-Inch, Ford 9-Inch Rear End Axle Flange Identification, Measuring a Ford 9-Inch Axle Housing and Axle Lengths. "N Case" was no longer needed for passenger car/truck As part of my research, I went to renowned Currie Enterprises and gathered one of just about every different 9-inch axle variant. 800-646-6718. 66-75 small bearing, 2. Some of this information is very important as it is becoming more and more difficult to find documentation on axles and differentials that were built more than 40 years ago. This axle tag belongs to a 1977 F-150. more plentiful starting in the early 1970's, many of the units found today A 67-73 medium and big block Mustangs and Cougars. GM Tri 5 55-57 Chevy Complete 9" Rear End Package. There are also unique domestic special-option tags, which dont follow the format. The 8.8 is a traditional semi-fl oat Salisbury axle with C-washers for axle retention. Proceed to match the code with its corresponding Axle Ratio column on the table to find the ratio. same width, but the distance between spring perches is different between Axle Size/Strength Chart; Explained Videos; Tech Articles; 9-Inch Ford. It is a banjo-style axle as is the 8-inch. Johns Industries Nodular Iron Assembly N1905JI $1728.00 With Open (New Gear) With Full Light Weight Spool $1409 With Trac-loc $1770 With Truetrac $1974 This third member comes with: A new, U.S.A. made John's nodular iron 9 inch case Case one pound lighter than the original Ford case Rated for up to 750hp A new U.S.A made John's billet aluminum pinion support A new forged pinion yoke of your . How to Narrow a 9 Inch Ford Rear End. In this chapter I share a summary of decades of work on these axles. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. Ring Gear/Pinion Gear Teeth to Gear Ratio. These used what is referred to as a 1957 no dimples, flat center band up the center of the rear cover, bottom drain plug. Remember this is the RPM based on no slippage at the torque converter so your actual RPM will be different during acceleration or times when the torque converter is slipping.3.55 gear: https://amzn.to/2HMrffx3.73 gear: https://amzn.to/2r0MakF4.10 gear: https://amzn.to/2JouvuH#wjhandydad #crownvic #reargear #gearratio #DIYhttp://www.WJHandyDad.comDisclaimer:Due to factors beyond the control of WJ Handy Dad, I cannot guarantee against improper use or unauthorized modifications of this information. Produced from 1957 to 1987 by the Ford Motor Company, it was used in full size . This will ensure that the correct replacement parts are purchased or salvaged from a junkyard to be used in the vehicle. You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. Gross Vehicle Weight ( GVW ) would You bring the gumption. Gear ratios can be quickly changed by removing the axles and driveshaft, unbolting the . Here are the internal sides of the same three units. Therefore, these axle assemblies require better quality oil and good underbody airflow to keep the unit cool. can tell this is a 9-inch from the removable carrier on the front. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. The Fora platform includes forum software by XenForo. The same applies to vehicles with codes containing numbers alone. 70's. We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. Ford personnel and/or dealership personnel cannot modify or remove reviews. It's important to know the friction quality and pad size before selecting a new set of disc brake pads. The Independent Rear Suspension (IRS) used in '99-'04 Cobras and the current Mustang use almost the same differential as the standard 8.8. Today we go over the important step of how to choose your Gear Ratio when building a 9-Inch Rearend.Make sure to Like, Comment and Subscribe for more videos!. Exceptions to this were the ultra Hi performance Boss 302s, narrowed rear ends due to the added strength in the middle. 1960-1967 two dimples, flat center band, oil level hole in the back cover. 54" First, the pinion shaft housing is removed from the front of the housing by removing five bolts. 31-spline carriers and axle shafts. It is the one most commonly Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. in the backside middle and stronger tubes. Pay attention to the Axle column, where you will get the correct Axle identification code similar to the one stamped on a metal tag on the rear-end axle. . The 9-inch ring and pinion is front-loaded into the rear end housing. for 1967-1970 (same as 1966-1969 Fairlane, Torino, Comet & Cyclone non The instructions below will walk you through the steps. From the arrow, you can see the axle code is H9. Rear ends with 3.42 gears usually come in 8.2 and 8.6-inch units, Rear ends with 3.73 gears come in 8.5 8.6-inch units Best Gear Ratio For Your GM 10 Bolt. Walk any automotive event and theres a darn good chance that any hot rod or muscle car you peek under is going to be sitting on a Ford 9-inch housing. 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. and Fairlane axle housings are often grouped together because they are the Dont be surprised if the tag you have does not exactly match this. These used what is referred to as a 9-inch complete rear axle is approximately 35 pounds heavier than an 8.8 rear axle with approximately the same components. These shafts had a longer brake spacing offset and a unique brake drum register diameter of 2.870 inches, which was uncommon for the time. By positraction, we talk about the type of differential the car uses, whether a limited-slip differential or a conventional non-Positraction differential. If you are fortunate enough to find an axle with the identification tag still attached, it will help solve part of the mystery of what application the axle came from and what might still be inside. Spring perches must be cut and re-welded in order Ford differential tags are very . Learn more. Ford Aerostar: The 8.8-Inch axle . and 429CJ cars.From what I have seen don't expect to find them in 390 or I have spent countless hours over the years collecting, reading, and studying old shop manuals, supplier reference documents, SAE papers, and even vehicle manufacturer reports and notes. As you proceed to the Ford Axle Code chart, you will notice that the table indicates it has a Ford 8.8 Limited Slip Differential with an Axle Ratio of 3.55. Ray. Roadkill Customs has evolved from local hot rod shop to online how-to magazine for budget-minded do-it-yourself hot rod builders and enthusiasts. You are correct sir, these are the standard ratios for 65-66. wheel drives) right up until about 1982, these housings are by far the How do I find the Axle Ratio and Limited Slip? Well help you determine the correct flexplate for your Chevy engine in this buyers guide. used the 9-inch rear, regardless of engine size. weakest and had abrupt ending but welded carrier centers to tubes and a 289 Hipo cars.The N cases went with 31 spline centers and are for rugged For a better experience, please enable JavaScript in your browser before proceeding. The axle model codes are interchangeable, typically the suffixes are different for a revision change but the axle is still interchangeable with one having the previous suffix. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not realistic. A station wagons-cars with 351 and up engines received 9-inch units - as did This chart serves as a general guideline for axle fl ange-to-fl ange width based on different models and production years. We'll work to keep you motivated and informed and with industry news, product information and reviews, event coverage, and well-curated articles and stories intended to inspire and educate. When you look on the inside, you see WAB- 4025A. The Many aftermarket companies produce 9 Ford equivalent rear axles for the drag racing and hot rod industry. 1/2 ton 4X4 pickups! If you need the Rear Axle Ratio for a vehicle produced before 2008, contact ourCustomer Relationship Center via Chat or call us at 800-392-3673. around 64-65 I believe.They are most often found behind the later 428CJ The information on the plate includes: The purpose of the axle code is to help identify the specifics of a particular vehicles rear-end axle. The last one i got was marked "Mustang Posi" on the rear of the differntial by the people at the yard who dissembled the car. Warranty Period: 1 Year or 50,000 Miles: Part #: MGK-300 : Ring Gear Diameter: 8.5 Front (Inch) 9 Rear (Inch) Ring Gear Material: 8620 Steel: Differential . This is a relatively common issue on these housings. applications due to the demise of most performance engine options in the The most Axles Tubes Are 4-Inches. Most of the later trucks (often referred to as a "POSI") came to be a popular option and Keep in more plentiful starting in the early 1970's, many of the units found today Home / Performance Front & Rearends / Parts Department / Ring & Pinion Sets / 9-Inch Ford. Centers: 1957 - no dimples, flat center band up the center of the rear cover, bottom drain plug, 1958-1959 - two dimples on back of housing, flat center band, some had drain holes, 1960-1967 - two dimples, flat center band, oil level hole in back cover, 1963-1977 Lincoln, LTD, Thunderbirds had 9.375 inch centers, housings were cut away at the gasket surface for ring gear clearance, one curved rib at the front top portion of differential, strong but no gears, 28-spline axles cannot be shortened and resplined (they're tapered), 1972 and earlier 31-spline axles have the ability to be shortened, 1973 and later 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle The first number is the last digit of the model year of the decade, the next digit is a letter and represents the month (A is for January, B is for February, and so on), and the last two digits represent the day of the month. around 64-65 I believe.They are most often found behind the later 428CJ Any sufficiently advanced technology is indistinguishable from magic . and trucks throughout the 1970s. The "rough" The Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. for it. "N Case" was no longer needed for passenger car/truck Most of These axles even have a unique bolt pattern of five on 5 inches. GM Truck Complete Rear End Packages. One exception to this was For example, Ford says the 2018 F-350 Super Duty 4x2 regular cab pickup equipped with the 6.2-liter . Besides the styling of the Ford Edsel, even the axle shafts were very unusual. A simple formula to calculate Gear Ratio or Axle Ratios. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) Some even consider these axles to be bulletproof. The third reason was basic health and safety concerns for the assembly technicians and other employees who handled the axles in the manufacturing and assembly plants. You can find the axle code on the Safety Standard Certification label information. I'm not responsible for incorrect information, Width: all measurements are flange to flange, Ford Rear Axle Assembly Identification - Page 01 - FORDification.com. Later The 7.5 should be plenty adequate for the application you describe, but an 8.8 is best. There are three versions with external Ns cast in; note the more curved style on the top right. 31-spline carriers and "Traction Loc" style posi unit. The Ford 8.8 is an automotive axle manufactured by Ford Motor Company at the Sterling Axle Plant in Sterling Heights, MI.It was first used in model year 1983 Ford trucks. Find your transmission and rear gear multiplier below. The tags were replaced with adhesive labels that are placed around the axle tube near the brake and wheel end. Use this information at your own risk. * Pro Gears are specifically designed for drag race only. Ford Axle codes help identify the vehicles positraction as well as an axle to gear ratio. Trust Speedway Motors for best-in-class parts for Ford 9 Inch - delivered quickly, efficiently and without any hassles. To determine the axle ratioof your vehicle, locate thetwo-digitaxle code first, then use your vehicle'stowing guide to find the axle ratio that corresponds to that code. Talk to the experts. Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. 31-spline car shafts. At this width, many were used in street rod applications without modifi cation. If you know your axle tag number, simply go to the second table. the few cars and early Broncos (and some early trucks) which received This is not a nodular unit. medianet_height = "250"; It has more ground clearance than a Dana 60. There were also 8-inch ring gear independent carriers in production. Refer to the Axle Ratio table to determine your rear axle ratio and Limited Slip. The middle number is the ring gear diameter in inches, typically an 8 or 9. If the case has two verticle RIBS ,from top to * Pro Gears are specifically designed for drag race only. You will also learn how to identify the codes in Ford vehicles. Performance Front & Rearends GM Vehicles Gears / Diffs / Install Kits Listed By Vehicle, Standard Gears & Pro Gears Dana / Ford / GM / Mopar, Strange T-Shirts. The The Ford Mustang and Thunderbird used this style for a few model years. Customers are invited to participate in a survey administered by MaritzCX, an independent, third-party supplier. I reference these axles based on the ring gear nominal outside diameter in inches. When you buy through our links, we may get a commission. 31-spline axles and carriers for most trucks. There is a gear ratio stamped on the tag. 1963-1977 Lincoln, LTD, Thunderbirds had 9.375-inch centers, housings were cut away at the gasket surface for ring gear clearance, one curved rib at the front top portion of differential, strong but no gears.. Since the "Limited slip" or Locking rear end . However, the critical aspects of the rear axle are the axle flanges and axle lengths. I had an early '70's Lincoln with a 460 come into the shop one time and it had the 2.33:1 ratio in a 9 inch. This is 2.25 inches for the Ford 9-inch and 1.5 inches for the 8.8-inch axle. This chart applies to all Ford non-overdirve transmissions, manual and automatic. Axle code. The 8-inch also was only available with 28-tooth axle shafts. This is because the supply is limited to 67-70 Mustang = 59.25 inches. by the size of the nuts and thread used to retain the brake backing plates So again, unlike the GM and Dana axles that require a unique differential with different ratios, the Ford 8.8-inch differential is common across all of the ring-and-pinion ratios. widths I keep in mind for Mustangs are the following: thanks. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! actual car posi units, which were primarily 28-spline carriers, can be Some of the heavier cars like the Galaxies also received the This includes the Center Case, the Pinion gear, the ring gear, and the differential or spool. and this style of center carrier housing is best suited for drag cars or Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. This is when making a few phone calls to reputable axle builders can be helpful. The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. It is a column with the label AXLE on top and the Axle Code at the bottom. The case Ford used . version of the case came into use in 1967 or in subsequent years, but it CASE" Most 1972 and earlier 31-tooth spline shafts can be shortened and 1973 and later versions typically cannot be resplined. Learn how to hook up a 1-wire alternator on your vehicle. These tags provided information for the service technicians but wasnt that important for the vehicle assembly plants. can you conceal carry in a hospital in pa,