7.5 inch, 8.5 inch, 10.5 inch. The last set of digits on the top row on the right side is the date code. These third members are the strongest of the production cases and the most desired. These axles even have a unique bolt pattern of five on 5 inches. It is common to find a 9-inch in a old Falcon or replaced, and that is why it remained in use for so long. to the housing, the small bearing housings use 9/16" socket size nuts The rear-end housing has a vast amount of ford 9-inch gear ratios available. bearings, 28 and 31 splines, 57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang the best. The ranger truck works good with a 9-inch from a Written by Joe Palazzolo and Republished with Permission of CarTech Inc. 9-inch (cars) have a 5-on-5 bolt circle and the axles cannot be shortened. Calculating the torque multiplication that your axle gears provide is quite easy. * Coupon does not apply to Oval Size Matters T-Shirt. Click on the 'Submit' button to find out how you It's uncertain if this E The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. The answer lies in several of the Ford 9-inchs design aspects, starting with the Ford 9 inch gears. For reference, this section from the Ford MPC is posted . earlier housings used in cars from 1957 to mid 1960s tended to be the if one wants to use a 31-spline truck carrier in a car. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The Ford 9-inch has a reputation as a durable axle that can transmit enormous torque, and this is rightfully deserved. Ford used and trucks throughout the 1970s. There are quite a few companies making Ford 9-inch housings to fi t just about any muscle car out there, including non- Ford vehicles. Your email address will not be published. Exceptions to this were the ultra Hi performance Boss 302s, Ford Rear Axle Assembly Identification - Page 09: NOTE: Axle tag location and appearance may vary by application. Here are the internal sides of the same three units. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more! housings also evolved over the years: The Mustangs and Fairlanes. The 8-inch was introduced in 1962 and is found in many lower performance Fairlanes, Mustangs, Falcons, Comets, Cougars, and Pintos, just to name a few of the applications. Call 800.979.0122, 7am-10pm, everyday. if not I have other 9" info archived I can post. version of the case came into use in 1967 or in subsequent years, but it 8300 N. Austin Ave Morton Grove, IL 60053 With the pinion gear and differential in place, rear-end marking compound in place, and with the bearings only "snug" (just tight enough to eliminate any "play"), check the pinion depth by way of the contact pattern that can be found by the rotation of the pinion against the ring gear. truck housings received even beefier center carrier housings and tubes, I have a '50 Club Coupe and have experienced this first hand. 2. You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. 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. It's important to know the friction quality and pad size before selecting a new set of disc brake pads. If there is an "L" in between, you should have a locking or limited slip differential. The original carrier is normally equipped with a CV joint flange, which can be replaced with a U . Bolt-In 9 Inch Ford Rear Housing for 1967-72 GM Pickup Trucks, Speedway Centered Housing Ford 9 Inch Axle Kit, 58 Inch Width, Fabricated 9 In Ford Rear Axle w/ Posi Traction 3rd Member, 58 In, 9 Inch Ford Cut-to-Fit Axle with Bearing, Big Ford/New Style, Ford 9 Inch Gear-Style Posi Differential Third Members, Ford 9 Inch Bolt-On Rear Disc Brake Kit w/ E-Brake Caliper, Driven 04230 75W90 Limited Slip Gear Oil Change Kit, Ford 9 Inch, CarTech SA170 High-Perf. is the strongest factory case made BY FORD!!! at car swap meets and shows are the units pulled from trucks with the threatening to harm employees or others), Lack of adequate text (e.g., symbols, emojis and random letters), Reviews on the product and not the customers Sales or Service experience. Axle length is not always identical from side to side, as many 9-inch applications use an offset center, so you must measure the housing carefully to be able to order the proper axles. This is an example of the only Ford 9-inch version that utilized one-piece tubes. This is a great upgrade component to use for high-power applications or if you are replacing your cartridge. About 8 months ago, I came across someone who had a very complete model, ratio chart for 9 in rears, After a computer crash, I have lost it. and this style of center carrier housing is best suited for drag cars or 3.00, 3.25, and 3.55; so I know at least those ratios were all available from the factory in the 8 inch rears. All the Galaxies I have seen from throughout the 1960s It was not the only axle used, but was by far one of can easily tell this is a 9-inch from the hump in the rear and (2) actual car posi units, which were primarily 28-spline carriers, can be Tip: To search the Towing Guide, press CTRL + F to open a search box in your . The straddle-mounted pinion has a roller bearing in the gear case, which provides additional support for the pinion under heavy loads. This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. Many racers carry an extra carrier assembly for their 9 inch third member with a different rear end ratio so they can try different combinations on the same day while at the track. Here is an example of a weld repair on a factory original housing. 2.75 open differential. Ford Aerostar: The 8.8-Inch axle . GM A-Body Complete 9" Rear End Packages. with 3/8" fine thread, while the larger bearing use 11/16" No Brake Fluid Coming Out When Bleeding: The Causes and How to Fix, 15 PENSKE Truck Warning Lights: Video Included, Manufacture date of the particular car model (DATE). . Aftermarket vendors are actually re-casting these cases in very strong nodular iron, so more often than not it is easiest just to purchase a new case. With their high-volume production, the two biggest quality problems were leaks from poor welds and poor alignment of the housings. There are a few exceptions that you will see in the Ford Axle code chart. common carrier housing found is the C7AW-E. The 9 Ford rear axle, so called because of a 9 ring gear diameter, is the choice of many circle track racers because of its strength, availability and ease of maintenance. This is by far the most common axle used by restorers, hot rodders, customizers, and racers. 1972 and earlier, 31 spline axles have the ability to be shortened. The larger offset is better for strength and noise but worse for sliding and efficiency. A 2-inch version is not shown. Finding the location of this certification plate is easy. It can also help in identifying the axle ratio of your particular vehicle. Some tags reference the week of the month instead of the exact day and just use a letter (A to E) for first through the fifth week of the month. You can find the axle code on the Safety Standard Certification label information. JavaScript is disabled. Note: Rear axle ratios are available for 2008 and newer models. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not WJ Handy Dad.As an Amazon Associate I earn from qualifying purchases duty.And believe it or not, they were also used in some FE equipped Ford Unless you are building a Pinto or straight six-cylinder vehicle, you want to avoid it. 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. Some axle shafts can be shortened and a new spline machined in place. shafts. - as in the Mustang line, most however never received a factory 9-inch). 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. . Remember to locate the Safety Standard Certification label on the left side door post as you open the door. Are reviews modified or monitored before being published? differences, 28-spline car axle shafts are much more abundant than the Fords small block and big block engine families have their share of flexplate differences. 1960-1967 two dimples, flat center band, oil level hole in the back cover. the few cars and early Broncos (and some early trucks) which received Most have the two driving holes for the manufacturing process while one has a more square looking drive end. It was also used in the 1983-1996 full-size Bronco, and E150 Econoline . Generally, aftermarket shafts have to be purchased Mustangs Home / Performance Front & Rearends / Parts Department / Ring & Pinion Sets / 9-Inch Ford. mind as mentioned, the Fairlane spring perch distances were not the same This consists of the Ford Pickup F100 lineup till the Ford F350 lineup. The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. Find the two-digit code under AXLE. Pairing your vehicle with the wrong axle components will not only damage your vehicle but cost you a lot down the line. determine which axle housing many cars and trucks received. This additional bearing and, more importantly, the necessary casting support structure is what drives the larger hypoid offset. Rhodes Race Cars Unwelded Fabricated Rear End Housing Ford 9 in. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. In order to allow for the additional straddle mounted bearing and casting support structure, the hypoid offset needs to be large enough to clear the differential case. Later When narrowing a Ford 9 inch rear end, the first step is determining the overall length you need. 1973 and later cars have a 55 bolt pattern, and the axles cannot be shortened. This is not a nodular unit. This is an example of the brakes that fi t the small wheel end bearing for a 10 x 2-inch-wide drum brake on the left and a 10 x 1-inch on the right. The ring and pinion are then accessed, also from the front, by removing another 10 bolts. Ratings and reviews are provided by customers who have either purchased a vehicle or visited a dealership for service. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. 1. Have housings appeared in either 1966 or 1967 with the familiar "Hump" The original applications are as follows: 1. These axles did have metal axle tags similar to the 9-inch axles but they were slowly phased out as vehicle programs were updated. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. But the 9" is better in a couple respects: It's much lighter than a Dana 60. of course most desirable is the N case, first used on the 427 Galaxies same width, but the distance between spring perches is different between A metal axle tag is typically located on the driver-side front of the third member. Ironically, 8.0-inch independent carriers were made in cast iron. 1957 no dimples, flat center band up the center of the rear cover, bottom drain plug. 66-75 small bearing, 2. The 1966 Mustang had 14 possible rear gear ratio/differential combinations. tubes with flat tops, 1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 So rare Ford dropped it after 66, when they also dropped the 7" Equalock. Buyers Guide. Torsion Axle Vs. This is an easy way to identify the third members, so youre sure to buy the correct axle. *** SELECT GEAR RATIO FOR PRICE *** Categories. The desirable N-style, nodular-iron gear cases are available in four different versions. The image below shows the Safety Label of a Ford Truck. 6. The rear-end housing has a vast amount of ford 9-inch gear ratios available. wheel drives) right up until about 1982, these housings are by far the Gears / Diffs / Install Kits Listed By Vehicle, Standard Gears & Pro Gears Dana / Ford / GM / Mopar, Strange T-Shirts. Gross Vehicle Weight ( GVW ) would No. 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. In contrast, on the 9-inch, two nuts on the bottom at about the 6 and 7 oclock positions cannot be accessed with a socket and require a wrench. We're The fourth version did not have the N in the casting on the outside but still retained the rib structure. The smaller 8-inch third member is on the right. The "rough" Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) The Ford 9 inch rear end is one of the most popular axles in automotive history. 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. is by far the most abundant case being used in both full size Ford cars Leaf Spring: The Similarities And Differences. The axle tag typically has two lines of numbers and letters stamped on it. 2. can tell this is a 9-inch from the removable carrier on the front. and Fairlane axle housings are often grouped together because they are the . 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, Torino, Ranchero, Fairlane 9-inch 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. I reference these axles based on the ring gear nominal outside diameter in inches. Chevy differentials: how to rebuild the 10- and 12 . It Details: Motive Gear . The first two digits of the axle code identify the ratio and capacity of the rear axle. 1958-1959 two dimples on the back of housing, flat center band, some had drain holes. If the case has two verticle RIBS ,from top to The Ford Axle code will also help you identify your particular models engine capacity and the year/vehicle make. Enter the required Overall Width, Pinion Offset (location), Brake Space and Drum/Rotor thickness to find axle length and housing width. Front Axle Codes While the parts catalog says "The third digit of the axle code identifies the ratio and/or capacity of the front axle", that is not true.As seen below, there are only 4 codes (2 - 5) and they do not define the axle ratio nor capacity.In fact, to find the front axle ratio you need the codes off the axle itself, as shown here: (often referred to as a "POSI") came to be a popular option and 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! The Independent Rear Suspension (IRS) used in '99-'04 Cobras and the current Mustang use almost the same differential as the standard 8.8. It is the one most commonly First locate your current gear ratio and tire diameter and then find your approximate RPM at 65 MPH, then reference your new tire diameter with your desired RPM to find the new gear ratio needed. Using this data, hopefully you can decide whether you want a 2.73, 3.08, 3.27, 3.55, 3.73, 4.10, or some other gear in your car. The 8-inch also was only available with 28-tooth axle shafts. Notice that the date code is C9UA with the ring gear size of 8.7. GM B-Body Complete 9" Rear End Packages. weakest and had abrupt ending but welded carrier centers to tubes and a There are a few exceptions that you will see in the Ford Axle code chart. 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. Due to factors beyond the control of WJ Handy Dad, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. On this particular third member, the original copper washers that were under the factory fasteners have been discarded as well. This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. It was required to repair a leaking weld. if so is this what you are looking for. We offer a guide to follow when selecting a new set of brake pads for your race or street car. How to Narrow a 9 Inch Ford Rear End. found in the trucks up to around 1982. Only the N-series cases are made out of the stronger, more desirable, nodular iron. The Leaf Spring: The Similarities And Differences, Front Axle Of A Car: Types, Functions, And Replacement, CV Axle Boot: Overview, Signs, And Replacement. 66-75 large bearing, 3. Find your transmission and rear gear multiplier below. applications due to the demise of most performance engine options in the 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. While the larger offset makes the ring and pinion gears stronger, the additional sliding of the gear teeth creates more heat in the axle. This bearing is one of the reasons that the 9-inch has the reputation for being bulletproof. When you buy through our links, we may get a commission. The 8.8" rear end is flat on the top and the bottom as well as the left and right. This case looked like a nodular unit from the front regarding rib structure but did not have the N on it. Give us a call at 800-216-1632 to get started. 56" more plentiful starting in the early 1970's, many of the units found today FORD FINAL DRIVE RATIOS. 65-66 Mustang = 57.25 inches. If you don't know your gear ratio, you can calculate it by taking the number of rear . Proceed to match the code with its corresponding Axle Ratio column on the table to find the ratio. With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . The WFE-V2 helps us fi nd the decade of the 1970s. It is as easy to cut down as any other 8 or 9 inch Ford axel. The Ford 8.8-inch axle has the same ring gear mounting distance (see Chapter 7) for all ratios, just like the 9-inch. them. We stand behind our products with some of the smartest technicians in the industry. How do I find the Axle Ratio and Limited Slip? Using the Ford Axle code chart, you will get to negate all these issues with ease. A simple formula to calculate Gear Ratio or Axle Ratios. Use this information at your own risk. The format has changed over the years but mostly follow this sequence:. FMX, three-speed, automatic. When it comes down to actual shafts as well, since the truck lug This is because the supply is limited to in the backside middle and stronger tubes. 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From my piles of rare parts, here is an independent cast-iron 8.8-inch carrier axle. These tags were not that informativeon the early units, so from 1957 to 1962 the tag just referenced axle ratio. Start by opening the left drivers front door. Select the Towing Guide for your vehicle's model year. larger wheel bearing housings. This axle tag belongs to a 1977 F-150. The Ford version uses larger axle shafts and different lube flow strategy. The aftermarket Daytona-style pinion cartridge accommodates the larger and stronger pinion head bearing. Nine Inch Rear Axle. at car swap meets and shows are the units pulled from trucks with the The rear end width is important on shoebox Fords if you want some selection on wheels. 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. It has enjoyed a long production history with many variants. carriers both, as well as with the spline count on the axle shafts. Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. Axles Tubes Are 4-Inches. 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. It is a banjo-style axle as is the 8-inch. 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. Axle Size/Strength Chart; Explained Videos; Tech Articles; 9-Inch Ford. One exception to this was 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. for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. Get any 3 for $25 plus shipping. 9-Inch Standard Ring And Pinion Gear Sets (3.00 to 6.50 Ratios) $240.00. 76-77 large bearing. The instructions below will walk you through the steps. 3. for it. 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. The typical 3 inch-diameter tubes can be a bit flimsy in higher-power applications. small bearing housing can be differentiated from a large bearing housing Original gear ratios range between 2.79:1 and 5.43:1, and aftermarket replacement gears are available for many ratios as well. A copy of the Ford Axle Code Chart is linked below in this article. Builder V8 Billys 1966 Ford Fairlane Twin Turbo 427 RestoMod was built for Street and Strip. Of course, if your budget allows, you can purchase an aftermarket iron case that is stronger than any factory case. It is the one most commonly It was then replaced by the Ford 8.8 inch rear axle. and this style of center carrier housing is best suited for drag cars or I have included the narrow 8-inch axles for reference. General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. The 9-inch ring and pinion is front-loaded into the rear end housing. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. The bar code is present on this unit as well, although later axles just carry the bar code and the metal tag is no longer required. The Ford Axle code chart is a handy tool for positraction replacements. there is the letter "N" than this is a NODULAR CASE (GREAT) this Here is an example of 11 x 2-inch drums brakes with the small bearing size on the left and the large Torino style on the right. Generally most cars received the small axle bearings and 28-spline axle "N Case" was no longer needed for passenger car/truck The Ford 9 inch housing is a semi-floating, drop-out axle. 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!. medianet_crid = "364974658"; GM Truck Complete Rear End Packages. Read this first! Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed.
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