This will ensure that the correct replacement parts are purchased or salvaged from a junkyard to be used in the vehicle. more plentiful starting in the early 1970's, many of the units found today While the 8.8 is similar to the 12-bolt, it isnt identical. Traditional BOM's are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. Once you have identified the label, locate the word AXLE under the bar code section. If measuring the drum-to-drum distance, add .200-inch to these values. The ring and pinion are then accessed, also from the front, by removing another 10 bolts. wheel drives) right up until about 1982, these housings are by far the There are even different drum brake registers. The the axle from around the 1957 model year right up until the early 1980s 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. popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. 70's. 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. Code Application Ring Gear And Pinion NL or L Axle Shaft Splines Additional Information; Ratio: Diameter of RG: WGA-A: Lincoln Mark Series '69-'71 Thunderbird '69-70: 2.80: 9 3/8: NL: 31-WGA-B: Lincoln Mark Series '69-'71 Because of the long production history of this axle, many variants are available. The other identification information, 9, as observed from the chart, indicates a 3.55 gear ratio of the Ford F-150. by Ford exist in the size of the outer axle bearings in the housings and Any of the W-series cases do have a fill plug machined in them. carriers both, as well as with the spline count on the axle shafts. This includes the Center Case, the Pinion gear, the ring gear, and the differential or spool. 5.4L (including Lightning) and some 44 super cabs and higher GVWR models which were equipped with the heavier-duty 9.75-Inch rear axle. This is a relatively common issue on these housings. - Rod Stroke Ratio - Stroke Size Rear Gear Requirements - Rear End Gear Ratio Needed - Speed from RPM, Rear & Trans. When it comes down to actual shafts as well, since the truck lug 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. 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. Buyers Guide. applications due to the demise of most performance engine options in the The 9-inch third-member bottom fasteners, on the left, can only be accessed with a wrench. can easily tell this is a 9-inch from the hump in the rear and (2) Paint gmc dupont charts reference chart 1956 1959. The 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. In the 1980s and 1990s, the Lincoln Versailles brakes and complete axles were highly sought after because it was the only way to get a 9-inch axle with discs in a 58-inchwide axle package. 54" 1967-1973 Mustang, Torino, Ranchero, Fairlane 9-inch Width: all measurements are flange to flange. 31-spline carriers and axle shafts. differences, 28-spline car axle shafts are much more abundant than the Both 8- and 9-inch axle housings are made from a series of stampings that are fixtured and welded together. The i.e. While the larger offset makes the ring and pinion gears stronger, the additional sliding of the gear teeth creates more heat in the axle. 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. A strong 9" with a nodular diff and 31 spline axles is fairly comparable in strength to a stock Dana 60 rear end. popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. replaced, and that is why it remained in use for so long. "N Because of their strength, youll see these 9 inch rear ends used in just about every make of car, truck, and customs. The heat treated aluminum alloy well suited to absorb high impact shock loads. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. 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. The same applies to vehicles with codes containing numbers alone. 76-77 large bearing. All the Galaxies I have seen from throughout the 1960s Measuring from axle flange to axle flange (measurement A in the diagram below) will give you total axle housing width. Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the This particular pinion cartridge is well reinforced and much stronger than the stock production cartridge. 28 spline axles are tapered and cannot be shortened and re-splined. by Ford exist in the size of the outer axle bearings in the housings and CASE" Refer to the Axle Ratio table to determine your rear axle ratio and Limited Slip. . 1957 no dimples, flat center band up the center of the rear cover, bottom drain plug. GM A-Body Complete 9" Rear End Packages. This is because the supply is limited to There are a few exceptions that you will see in the Ford Axle code chart. 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). replaced, and that is why it remained in use for so long. These used what is referred to as a for it. Another bonus is that the axleshafts are of equal length, so youll WJ Handy Dad assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. The chart is based on RPM levels at 65 mph (105 kph) and a drive train running at a 1:1 gearing ratio, meaning the . Our Mopar flexplate buyers guide will help. the best. Thanks. and this style of center carrier housing is best suited for drag cars or With their high-volume production, the two biggest quality problems were leaks from poor welds and poor alignment of the housings. Ford 8 Ford 9: CLICK FOR MORE INFO. Using the Ford Axle code chart, you will get to negate all these issues with ease. 67-70 Mustang = 59.25 inches. The "rough" truck housings received even beefier center carrier housings and tubes, of torque to the pinion gear and the gear ratio of the ring-and-pinion is say 4.12:1, the output torque is 412 ft./lbs. Check it out. Some differential experts tell you that the Blue Oval engineers copied the 12-bolt design when they came up with the 8.8-inch axle. The desirable N-style, nodular-iron gear cases are available in four different versions. Content. These tags were not that informativeon the early units, so from 1957 to 1962 the tag just referenced axle ratio. GM F-Body Complete 9" Rear End Packages. 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. 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: You can install a true 9-inch gear in these housings as well. Here are the internal sides of the same three units. Ford intermediates with big blocks. There is a gear ratio stamped on the tag. The 1966 Mustang had 14 possible rear gear ratio/differential combinations. the best. 8. housings also evolved over the years: The The Ford 9 inch rear end also has the widest variety of ratios on the market, Particularly in the 3.0:1 to 5.0:1 range. Ford 9 Inch Rear End Gear Ratios Chart1969 impala ss 427 4 speed. T & C FORD TOP LOADER 4 SPEED WIDE RATIO 2ND GEAR 31 TOOTH showing . Get any 3 for $25 plus shipping. GM Tri 5 55-57 Chevy Complete 9" Rear End Package. For Example: 235/45ZR-17 (235 x 0.45 x 2 25.4) + 17 = 25.327" And here's a formula that you can use to calculate your vehicle's rear axle gear ratio: RING GEAR TOOTH COUNT PINION GEAR TOOTH COUNT = GEAR RATIO. station wagons-cars with 351 and up engines received 9-inch units - as did 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. dimples. This sensor is for the anti-lock brake system. The later the Broncos from 1966 to 1977, they stayed with the 28-spline units. The straddle-mounted pinion has a roller bearing in the gear case, which provides additional support for the pinion under heavy loads. 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. Ford differential tags are very . This axle tag belongs to a 1977 F-150. I have included the narrow 8-inch axles for reference. 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. at car swap meets and shows are the units pulled from trucks with the 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. 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. same width, but the distance between spring perches is different between 66-75 small bearing, 2. Details: Motive Gear . Now you can see the C4AW-4025-B part number on the lower left unit, which verifies it as a nodular unit. Mismatching issues are a big problem when it comes to automotive repairs. to the housing, the small bearing housings use 9/16" socket size nuts The Lincoln Continental style of disc brakes use 11-inch rotors. pattern in most cases differed from the car, and due to the bearing size All of the 8-inch case nuts can be accessed with a socket. 1/2 ton 4X4 pickups! There are even different pinion cartridges that have been available from the various production years and models for this axle. The Ford Mustang and Thunderbird used this style for a few model years. - as in the Mustang line, most however never received a factory 9-inch). This allows quick gear ratio changes to accommodate different tracks or updates to your vehicles horsepower and torque ratings. This is because the supply is limited to Spring perches must be cut and re-welded in order Because if one wants to use a 31-spline truck carrier in a car. 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. Ford Aerostar: The 8.8-Inch axle . For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. 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. You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. 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 . It also has a 9-inch ring gear. 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. It is quite strong since it was designed to handel the 260 V8 engine, the 8 inch can also be beefed up for even more power with custom racing or Hot Rod parts. The middle number is the ring gear diameter in inches, typically an 8 or 9. In the early days of hot rodding, with the majority of hot rods being Fords, it stands to reason the '30s and '40s Ford "banjo" rearend dominated the scene. The rear-end housing has a vast amount of ford 9-inch gear ratios available. The center section is the differential assembly. I guess this helps add to the splendor of the vehicle. How To Recognize 9-Inch Housing How do I find the Axle Ratio and Limited Slip? Ray. weakest and had abrupt ending but welded carrier centers to tubes and a Restoration matching issues will be avoided since the right optioned components will be used to make the restoration. Axles Tubes Are 4-Inches. 289 Hipo cars.The N cases went with 31 spline centers and are for rugged Axle Size/Strength Chart; Explained Videos; Tech Articles; 9-Inch Ford. Most have the two driving holes for the manufacturing process while one has a more square looking drive end. If you liked this article you will LOVE the full book. This chart references the connection between the month codes and the actual month. For example: Any Ford 9" carrier will fit, as long as it has a fill plug on the side. These tags provided information for the service technicians but wasnt that important for the vehicle assembly plants. Some of the heavier cars like the Galaxies also received the shafts. 31-spline carriers and "Traction Loc" style posi unit. The Fora platform includes forum software by XenForo. Repairing a twisted brake or throttle cable with a simple homemade tool in just minutes Easy and functional. The Ford 9 inch rear end is one of the most popular axles in automotive history. The certification plate can be located on the lock face of the left door edge. Enter the required Overall Width, Pinion Offset (location), Brake Space and Drum/Rotor thickness to find axle length and housing width. It's uncertain if this E and 429CJ cars.From what I have seen don't expect to find them in 390 or there is the letter "N" than this is a NODULAR CASE (GREAT) this Strange engineering offers a variety of steel retainer plates to be used with drum and some disc brake applications. and Fairlane axle housings are often grouped together because they are the The very rare optional 6 cylinder rear was the 3.50. Ford trucks and cars from 1968 onwards are equipped with the Ford Axle codes, which are clearly indicated on the certification plate. The 9-inch housing's center section will not allow the socket to clear, and . The format has changed over the years but mostly follow this sequence:. There were many instances of cuts and scratches from the thin steel tags sticking up on the axles. Besides the styling of the Ford Edsel, even the axle shafts were very unusual. 77-81 Lincoln Versailles. Some of the heavier cars like the Galaxies also received the No. The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. Notice the 8.0-inch ring gear diameter cast into the rear cover below the fill plug. around 64-65 I believe.They are most often found behind the later 428CJ . Ford Also Equipped The 1980-Current E-350 Dual Rear Wheel And Some E-450 Super Duty Vans With Dana 70 or Dana 70HD Rear Axles. Most 1972 and earlier 31-tooth spline shafts can be shortened and 1973 and later versions typically cannot be resplined. If you don't know your gear ratio, you can calculate it by taking the number of rear . This consists of the Ford Pickup F100 lineup till the Ford F350 lineup. is by far the most abundant case being used in both full size Ford cars If you know your axle tag number, simply go to the second table. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. 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. The answer lies in several of the Ford 9-inchs design aspects, starting with the Ford 9 inch gears. The axle identification tag is located at about the 3 oclock position under the third-member mounting nut when you are looking straight at the front of the axle. 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. 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. for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes trucks varied more, early half ton trucks got the 28-spline axles and Comet that has had a HIPO SMALL block with 31-splines and a locker. Our experts will help you find the correct ring and pinion set for your particular application. 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. 4. Anyone know? Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the These have a C4AW-4025-B casting part number next to the adjuster nut. in the backside middle and stronger tubes. The axle housings themselves had many different variations over time as well. 9-inch complete rear axle is approximately 35 pounds heavier than an 8.8 rear axle with approximately the same components. The small are 2.835" or just under 3" and the large are 3.150" or just over 3". CLICK HERE to see a complete listing of front axle codes). The Ford 9-inch is an automobile axle manufactured by Ford Motor Company.It is known as one of the most popular axles in automotive history. type, 28 and 31 splines, Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle 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. The case Note the two lower bolts at 6 and 7 oclock have straight access with a socket. 100 x 4.12. applications due to the demise of most performance engine options in the 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. A simple formula to calculate Gear Ratio or Axle Ratios. FMX, three-speed, automatic. narrowed rear ends due to the added strength in the middle. We provide how-to and technical articles, vehicle and build features and examples, plus calculators and lookups that will help you get your ride from dream to driver. The Generally most cars received the small axle bearings and 28-spline axle Builder V8 Billys 1966 Ford Fairlane Twin Turbo 427 RestoMod was built for Street and Strip. These third members are the strongest of the production cases and the most desired. weakest and had abrupt ending but welded carrier centers to tubes and a can get your submission posted and acknowledged Ratio & type. This is an example of the only Ford 9-inch version that utilized one-piece tubes. Visit the RV & Trailer Towing Guides page on the Ford fleet website. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. 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 of the transmission and then reverse it to show engine RPM for every 10mph and each transmission gear. It is still used in NASCAR racing as well. Start by opening the left drivers front door. GM B-Body Complete 9" Rear End Packages. 1973-1979 Ford Truck Rear Axle Codes. You can do this by multiplying by the gear ratio. Fords small block and big block engine families have their share of flexplate differences. Of the four versions of the N case, three have an actual N cast into it right above the pinion cartridge. Any sufficiently advanced technology is indistinguishable from magic . Cost and complexity are two. I put together a whole collection of housings and third members. Now that you have identified the axle code, let us know the axle ratio. So rare Ford dropped it after 66, when they also dropped the 7" Equalock. Filed Under: Ford Tech Tips, Rebuild Ford Differentials, The Best Ford Tech Articles, 2023 DiY Ford. There is a huge aftermarket support for this axle design. Note: Rear axle ratios are available for 2008 and newer models. This is when making a few phone calls to reputable axle builders can be helpful. So, after crawling under just over 50 Cars, trucks etc at the local Upull, I found that a 1995 2wd 2.3 Ranger has the correct length driveshaft at 47.5".chevy truck driveshaft length chart. medianet_height = "250"; Gear Ratios - RPM from Speed, Rear & Trans. This is an easy way to identify the third members, so youre sure to buy the correct axle. Original ratios are 2.47, 2.50, 2.75 or 3.0 with the 2.50 being the most common. always looking for good content to share with N-case. Produced from 1957 to 1987 by the Ford Motor Company, it was used in full size . This bearing and the casting structure surrounding it need to be carefully inspected as this is a common area for cracks. common carrier housing found is the C7AW-E. This roadster sounds amazing, goes hard and turns heads wherever it goes. Many people are not aware that Ford made a smaller banjo axle and confuse the 8-inch for a 9-inch. wheel drives) right up until about 1982, these housings are by far the SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. Exceptions to this were the ultra Hi performance Boss 302s,