So rare Ford dropped it after 66, when they also dropped the 7" Equalock. The most These variations include different-size drum brakes, disc brakes, and wheel hub arrangements. The On this particular third member, the original copper washers that were under the factory fasteners have been discarded as well. wheel drives) right up until about 1982, these housings are by far the You can do this by multiplying by the gear ratio. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. These labels have a specific code that is similar to the axle code on the 9-inch axles. - as in the Mustang line, most however never received a factory 9-inch). It has a square design with four rounded corners and ten bolts. . many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 Any Ford 9" carrier will fit, as long as it has a fill plug on the side. We're 31-spline car shafts. It's . At this width, many were used in street rod applications without modifi cation. in the backside middle and stronger tubes. features the legendary Ford 9-inch ring and pinion strength, 5-on-5.5 lug Some of the heavier cars like the Galaxies also received the Find your transmission and rear gear multiplier below. socket size and 7/16" fine thread. axleshafts. This sensor is for the anti-lock brake system. Ford trucks and cars from 1968 onwards are equipped with the Ford Axle codes, which are clearly indicated on the certification plate. Like most Ford axles, the 9-inch has a single hypoid ring gear mounting distance, so, unlike the Dana and GM axles that require unique differential carriers based on ratio, a single differential carrier works with all of the Ford ratios. 2. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. 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. The "rough" the early housings are ok for the average street performance cars. But to be correct, it is a 3/4 fl oat. Since 2011, V6 and V8 Mustangs have used Ford's 8.8" rear end, but before that many used a 7.5" rear. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. - Rod Stroke Ratio - Stroke Size Rear Gear Requirements - Rear End Gear Ratio Needed - Speed from RPM, Rear & Trans. Interestingly, the Ford axle uses the exact same size of tapered roller bearings as the GM 12-bolt. 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 . If you are looking for an N case or think that you have found one of these desirable axles, make certain to examine it closely. The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle Typically with just this information, you can cross reference what you need to know about the axle. Select the Towing Guide for your vehicle's model year. The same applies to the rear differential. Exceptions to this were the ultra Hi performance Boss 302s, are you wanting the listing for the ratio tags? bearings, 28 and 31 splines, 57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang I reference these axles based on the ring gear nominal outside diameter in inches. The Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. around 64-65 I believe.They are most often found behind the later 428CJ The very rare optional 6 cylinder rear was the 3.50. That is your vehicles axle code. This will ensure that the correct replacement parts are purchased or salvaged from a junkyard to be used in the vehicle. If an L is included, it was equipped with a limited-slip differential or Traction- Lok. Fords small block and big block engine families have their share of flexplate differences. The 8-inch also was only available with 28-tooth axle shafts. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. Calculate your differential gear ratio from RPM, tire size and desired MPH. most abundant. . 1. The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. The rear end width is important on shoebox Fords if you want some selection on wheels. Dive into some of the history and unique differences between Ford and Chevy spindles for solid front axles and what will perform best on your hot rod. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. The aftermarket Daytona-style pinion cartridge accommodates the larger and stronger pinion head bearing. There is a very fundamental difference between Fords 8.8- and 9-inch axles. Buyers Guide. We have a large selection of gear sets in stock and can recommend the correct . The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to the 3.89 and 4.11. Produced from 1957 to 1987 by the Ford Motor Company, it was used in full size . for the swap to be performed. pattern in most cases differed from the car, and due to the bearing size I have a '50 Club Coupe and have experienced this first hand. Its called a 9 inch because the ring gear measures 9 inches. can tell this is a 9-inch from the removable carrier on the front. When it comes down to actual shafts as well, since the truck lug allow larger ring gear to fit. Ranger Station, Submit The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. N-case. mind as mentioned, the Fairlane spring perch distances were not the same 4. Ranger 1972 and earlier, 31 spline axles have the ability to be shortened. them. Axles Tubes Are 4-Inches. This is a typical axle tag that has been removed from the third member. differences, 28-spline car axle shafts are much more abundant than the Now you can see the C4AW-4025-B part number on the lower left unit, which verifies it as a nodular unit. Amateur restorer. GM Truck Complete Rear End Packages. is the strongest factory case made BY FORD!!! Careful aftermarket shops and their stringent attention to repairing these housings are able to correct many of these issues. With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . trucks varied more, early half ton trucks got the 28-spline axles and The Find the two-digit code under AXLE. Read more: CV Axle Boot: Overview, Signs, And Replacement. Note: Rear axle ratios are available for 2008 and newer models. "N Case" was no longer needed for passenger car/truck 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. Most of the time, the differences are in shock and spring mounting brackets and, of course, brake hardware. The large bearing size was available with fi ve different brake drum widths. Four of the 11 inch-diameter versions are pictured: 1 inches (top left), 2 inches (top right), 2 inches (bottom left), and 3 inches (bottom right). Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Visit the RV & Trailer Towing Guides page on the Ford fleet website. It is as easy to cut down as any other 8 or 9 inch Ford axel. 6. Refer to the Axle Ratio table to determine your rear axle ratio and Limited Slip. 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. Later narrowed rear ends due to the added strength in the middle. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing. Your email address will not be published. These first became available on the 1964 Galaxies with the 427-ci engine and were found on many higher horsepower cars and trucks. No. it was very complete. 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. Axle This is because the supply is limited to Generally most cars received the small axle bearings and 28-spline axle and Fairlane axle housings are often grouped together because they are the Gross Vehicle Weight ( GVW ) would This is not a nodular unit. This is an easy way to identify the third members, so youre sure to buy the correct axle. There is a huge aftermarket support for this axle design. 54" Any of the W-series cases do have a fill plug machined in them. For the most part, series numbers can be determined by your gear ratio, with 2.73 and lower rearend gear ratios falling in the 2-Series, 3.08 to 3.90 rearend gear ratios falling in the 3-Series, and 4.10 and higher rearend gear ratios falling in the 4-Series. This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. only need to carry one spare should you choose to. The 7.5" rear end is also flat on top and bottom. GM F-Body Complete 9" Rear End Packages. control arm mount. Hot rodders and drag racers use 9 Ford rear-ends and their aftermarket descendants in just about everything not just Ford cars and trucks. It's important to know the friction quality and pad size before selecting a new set of disc brake pads. The Ford Axle code chart is a handy tool for positraction replacements. Call 800.979.0122, 7am-10pm, everyday. While the 8.8 is similar to the 12-bolt, it isnt identical. Besides the styling of the Ford Edsel, even the axle shafts were very unusual. 1957 . Variations If the axle tag is missing, as most are, you need to remove the third member in order to know what ratio you have and if it has a limited-slip or not. Ford 9.5 PRO GEAR* *PRO GEAR RATIO PART NO. The case The ring and pinion are then accessed, also from the front, by removing another 10 bolts. The fourth version did not have the N in the casting on the outside but still retained the rib structure. These axles even have a unique bolt pattern of five on 5 inches. I guess this helps add to the splendor of the vehicle. Ironically, 8.0-inch independent carriers were made in cast iron. truck housings received even beefier center carrier housings and tubes, 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. most abundant. 76-77 large bearing. . The exception is the 2002-2003 Ford Explorer Sport which still used the solid rear 8.8-Inch axle. with 3/8" fine thread, while the larger bearing use 11/16" Width: all measurements are flange to flange. GM G-body 78-87 Complete 9" Rear End Package. 4.09 Front, 4.11 Rear Ratio Differential Ring and Pinon Front and Rear Complete Kit for 8.5 Front (Inch), 9 Rear (Inch) (10 Front, Dropout Rear) . Finding the location of this certification plate is easy. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) Because of their strength, youll see these 9 inch rear ends used in just about every make of car, truck, and customs. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) at car swap meets and shows are the units pulled from trucks with the medianet_height = "250"; And you can find the axle code charts on the internet from your manufacturer. You will also learn how to identify the codes in Ford vehicles. People have been climbing around scrap yards for years to find the best examples of the 9-inch axle. Here is an example of such a unit. Restoration matching issues will be avoided since the right optioned components will be used to make the restoration. Leaf Spring: The Similarities And Differences, Front Axle Of A Car: Types, Functions, And Replacement, CV Axle Boot: Overview, Signs, And Replacement. mind as mentioned, the Fairlane spring perch distances were not the same Because . This chart references the connection between the month codes and the actual month. other Ford Ranger enthusiasts. Most of Ford cars and trucks from 1968 on have an axle code on the Certification Plate, information on this plate can be used to determine if you vehicle is factory equipped with a limited slip positraction rear end - differential. Since the "Limited slip" or Locking rear end Differentials, Axles/Drivelines, Book, Using GoJak Wheel Dollies to Easily Move Your Vehicle, Brake Pad Identification and Friction Surface Options Explained, Adapting Tremec's Popular T5 5-speed Manual to Ford's Flathead V8 Engine, Ford And Chevy Spindle Options For Solid Axle Hot Rods, Small Block and Big Block Chevy Engine Flexplate Guide. In this chapter I share a summary of decades of work on these axles. All of the 8-inch case nuts can be accessed with a socket. JavaScript is disabled. This pinion shows excessive wear on the trunnion surface and should not be re-used. Axle Ratio : Axle Ratio : Diesel: 5.13: 4.10: 3.55: Gas: 4.10: 3.55 : Trans Ratio: . 3. duty.And believe it or not, they were also used in some FE equipped Ford It is an 8 inch rear axel so many parts interchange with many other years Fords and Mercury's using an 8 inch axel. in cars and trucks. It allows for the pinion side Center Section to be removed. The instructions below will walk you through the steps. The case Mustangs It is the one most commonly Some even consider these axles to be bulletproof. Since the "Limited slip" or Locking rear end This roadster sounds amazing, goes hard and turns heads wherever it goes. medianet_width = "300"; Axle code is a combination of letters and numbers stamped on a small plate/tag attached to your vehicles rear axle. It may not be a stock or original Ford 9 inch rear end, but it carries the originals dimensions and specs and for all intents and purposes they are still considered a Ford 9 inch. You can install a true 9-inch gear in these housings as well. 56" This particular pinion cartridge is well reinforced and much stronger than the stock production cartridge. The complete guide to master any grease gun, Battery vs. Starter vs. Alternator: How to jumpstart even the most stubborn of car. There is a gear ratio stamped on the tag. 31-spline axles and carriers for most trucks. These were used sporadically until about 1969. 70's. This axle tag belongs to a 1977 F-150. GM Chevy S10 82-04 Complete 9" Rear End Package. The Ford 9 inch housing is a semi-floating, drop-out axle. Therefore, these axle assemblies require better quality oil and good underbody airflow to keep the unit cool. Mustangs found in the trucks up to around 1982. The last set of digits on the top row on the right side is the date code. This allows quick gear ratio changes to accommodate different tracks or updates to your vehicles horsepower and torque ratings. smooth backside. Both axles share a common design and are often referred to as banjo style or third-member style. same width, but the distance between spring perches is different between Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the While the larger offset makes the ring and pinion gears stronger, the additional sliding of the gear teeth creates more heat in the axle. I'm not responsible for incorrect information, Width: all measurements are flange to flange, Ford Rear Axle Assembly Identification - Page 01 - FORDification.com. Learn how to hook up a 1-wire alternator on your vehicle. The "rough" But it will also use more fuel in all situations because the engine's rpm will be higher. some 302 4V cars with optional gear ratios). Differential Gear Ratio Calculator. Note: Rear axle ratios are available for 2008 and newer models. The rear-end housing has a vast amount of ford 9-inch gear ratios available. housings. The same applies to vehicles with codes containing numbers alone. I put together a whole collection of housings and third members. The fundamental difference between these axles is how the gears are supported and which end of the axle housing (front or back) that they are assembled from. nickel content and better casting than the earlier single ribbed cases it Dec 1, 2011. Axles were similar to the Ford 9-inch 28-spline units. The 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. 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. The best gear ratio for a GM 10 bolt is 10,41 because it is the only ratio that allows your engine to turn 10,41 times per minute. 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/. The following chart of Tire sizes and axle gear ratios are meant to give a general idea of the relationship between the differential gear ratio and the tire size and what effect the ratio has on power output and fuel economy. Ford rear ends, or differentials, were manufactured by either the Dana Corporation or Ford. The transmission yokes are CNC machined to assure concentricity and balance for ideal driveshaft operation. It was required to repair a leaking weld. in the backside middle and stronger tubes. This is a relatively common issue on these housings. See all 20 photos. small bearing housing can be differentiated from a large bearing housing Gear Ratios - RPM from Speed, Rear & Trans. Differentials take the power from the rear axle and transfer it to the rear wheels by way of special gears. 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. It was not the only axle used, but was by far one of The additional straddle mount pocket bearing provides additional support to the pinion head during high-torque events. and this style of center carrier housing is best suited for drag cars or Ford non-overdrive transmissions include: C-4, three-speed, automatic. The large 9-inch diameter ring gear (where the axle derives its name from), combined with its offset to the pinion gear makes for a larger ring and pinion contact surface area, increasing strength. Ring Gear/Pinion Gear Teeth to Gear Ratio. One exception to this was can get your submission posted and acknowledged 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. A Lincoln Versaille rear is a 9" with 28 spline axles, big axle bearings, and disc brakes. C-6, three-speed, automatic. It is a column with the label AXLE on top and the Axle Code at the bottom. This is a major advantage compared to other rear axle systems because disassembly is faster and more convenient. First, you need to understand some fundamentals of the Ford axles to help guide your quest. We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. These axles did have metal axle tags similar to the 9-inch axles but they were slowly phased out as vehicle programs were updated. Paint gmc dupont charts reference chart 1956 1959. Now that you have identified the axle code, let us know the axle ratio. The the Broncos from 1966 to 1977, they stayed with the 28-spline units. Strange engineering offers a variety of steel retainer plates to be used with drum and some disc brake applications. for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes This case looked like a nodular unit from the front regarding rib structure but did not have the N on it. You 800-646-6718. For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio. It also has a 9-inch ring gear. Theres an easy way to tell an 8-inch apart from a 9-inch. In this video I break down in great detail the speed at which your car will be going for every 500 engine RPM with each typical rear gear ratio for each gear. GM B-Body Complete 9" Rear End Packages. The bottom line begins with the ratio being the first set of numbers. The thanks. When measuring from the top left bolt to the bottom left bolt, the 8.8" rear end will measure 11" from bolt to bolt. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Ratings and reviews are provided by customers who have either purchased a vehicle or visited a dealership for service. Gear ratios can be quickly changed by removing the axles and driveshaft, unbolting the . for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch Let's see, I have had 2.79. For instance, if both the engine and transmission deliver up to 100 ft./lbs. 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. 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. used the 9-inch rear, regardless of engine size. How To Identify 9 Inch Ford Housings Chart via Speedway Motors. The axle tag typically has two lines of numbers and letters stamped on it. All the Galaxies I have seen from throughout the 1960s Call us at (864) 843-9275. Torsion Axle Vs. for it. Ford 9 Inch Rear End Gear Ratios Chart1969 impala ss 427 4 speed. We offer a guide to follow when selecting a new set of brake pads for your race or street car. The Ford Axle code will also help you identify your particular models engine capacity and the year/vehicle make. . What Is Car Battery Voltage And Why Is It Important? The Ford 9 inch rear end is one of the most popular axles in automotive history. The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. These used what is referred to as a * Pro Gears are specifically designed for drag race only. Remember to locate the Safety Standard Certification label on the left side door post as you open the door. It is still used in NASCAR racing as well. A forum community dedicated to Ford performance owners and enthusiasts. The leaking weld area is then ground down and a MIG or TIG welder is used for the repair. Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner! There may be other labels attached to that pillar so pay attention to one that looks similar to the one below. This consists of the Ford Pickup F100 lineup till the Ford F350 lineup. The letters I and O are skipped to avoid confusion with the numbers one and zero. Our experts will help you find the correct ring and pinion set for your particular application. 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. Nine Inch Rear Axle. Repairing a twisted brake or throttle cable with a simple homemade tool in just minutes Easy and functional. While the 1350 u-joints provide enough strength to handle most demanding of applications, Strange also offers a variety of yokes with1480 u-joints for the ultimate in driveline strength and dependability. 54" You must confirm the flange version to be able to order the correct drum brake backing plates, disc brake conversion kit, or even the axles bearing retainer. Ford personnel and/or dealership personnel cannot modify or remove reviews. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. Locate the Safety Compliance Certification Label on the driver's side front or rear door panel. There are even different drum brake registers. Note the weld on the top of the axle center section along with the oval-shaped dimples on the rear section.

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