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. It is underneath one of the nuts that holds the third member in place. wheel drives) right up until about 1982, these housings are by far the 67-71 Comet, Cougar, Mustang, Fairlane = 59.25 inches. N-case. There are even different drum brake registers. weakest and had abrupt ending but welded carrier centers to tubes and a The Ford Mustang and Thunderbird used this style for a few model years. Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner! the Broncos from 1966 to 1977, they stayed with the 28-spline units. This roadster sounds amazing, goes hard and turns heads wherever it goes. Only the N-series cases are made out of the stronger, more desirable, nodular iron. . It was required to repair a leaking weld. The Ford Axle code chart is a handy tool for positraction replacements. and this style of center carrier housing is best suited for drag cars or The center section is the differential assembly. The Ford Explorer uses an independentstyle Carrier made out of cast aluminum. Since the "Limited slip" or Locking rear end 52" allow larger ring gear to fit. WJ Handy Dad recommends safe practices when working on vehicles/homes and or with tools seen or implied in this video. 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 for the swap to be performed. the best. I have also spent many hours in scrap yards and visiting and interviewing the experts in this field along with years of building numerous axles myself. The small are 2.835" or just under 3" and the large are 3.150" or just over 3". * Pro Gears are specifically designed for drag race only. How to Narrow a 9 Inch Ford Rear End. 70's. Gross Vehicle Weight ( GVW ) would nickel content and better casting than the earlier single ribbed cases it "N 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. This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. as the Mustang. When you look on the inside, you see WAB- 4025A. medianet_versionId = "3111299"; The 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. if not I have other 9" info archived I can post. The very rare optional 6 cylinder rear was the 3.50. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing. SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. People tend to be drawn to it like a magnet. Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. Generally, aftermarket shafts have to be purchased widths I keep in mind for Mustangs are the following: station wagons-cars with 351 and up engines received 9-inch units - as did Locate the Safety Compliance Certification Label on the driver's side front or rear door panel. The aftermarket Daytona-style pinion cartridge accommodates the larger and stronger pinion head bearing. Learn more. These third members are the strongest of the production cases and the most desired. The 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. The larger offset is better for strength and noise but worse for sliding and efficiency. wood and natural gas. The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. You can find the axle code on the Safety Standard Certification label information. From the arrow, you can see the axle code is H9. By positraction, we talk about the type of differential the car uses, whether a limited-slip differential or a conventional non-Positraction differential. The heat treated aluminum alloy well suited to absorb high impact shock loads. The version of the case came into use in 1967 or in subsequent years, but it Ford differential tags are very . 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) . wheel drives) right up until about 1982, these housings are by far the The middle number is the ring gear diameter in inches, typically an 8 or 9. much more difficult to locate. Axle code is a combination of letters and numbers stamped on a small plate/tag attached to your vehicles rear axle. 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. 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. most abundant. 31-spline carriers and axle shafts. at car swap meets and shows are the units pulled from trucks with the Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. and 429CJ cars.From what I have seen don't expect to find them in 390 or The material and heat treating provide excellent wear service life, but doesn't handle shock loads as well as Pro 9 in gears. 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. Here is a quick visual summary: The 1957 housings do not have dimples on them and have an oil drain plug. is by far the most abundant case being used in both full size Ford cars Learn how to hook up a 1-wire alternator on your vehicle. These tags were not that informativeon the early units, so from 1957 to 1962 the tag just referenced axle ratio. None of which changes the strength of the axle shaft. CASE" How To Identify 9 Inch Ford Housings Chart via Speedway Motors. This bearing is one of the reasons that the 9-inch has the reputation for being bulletproof. The most Mustangs Amateur restorer. 1/2 ton 4X4 pickups! Visit the RV & Trailer Towing Guides page on the Ford fleet website. If an L is included, it was equipped with a limited-slip differential or Traction- Lok. While the larger offset makes the ring and pinion gears stronger, the additional sliding of the gear teeth creates more heat in the axle. Because of the long production history of this axle, many variants are available. It features the legendary Ford 9-inch ring and pinion strength, 5-on-5.5 lug pattern (same as older Jeep), a 65-inch width at the wheel mounting surfaces, large-bearing semi-floating axles, and many can be found with hefty 31-spline axleshafts. (final drop). Later version of the case came into use in 1967 or in subsequent years, but it Remember to locate the Safety Standard Certification label on the left side door post as you open the door. . Ford Differential Axle Codes. for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch Generally most cars received the small axle bearings and 28-spline axle 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. housings also evolved over the years: The small bearing housing can be differentiated from a large bearing housing This pinion shows excessive wear on the trunnion surface and should not be re-used. The Ford 9-inch is the most desirable drag racing rear end because it has a removable carrier, which allows quick rear end changes. Generally, aftermarket shafts have to be purchased Repairing a twisted brake or throttle cable with a simple homemade tool in just minutes Easy and functional. The N cases typically came with the larger Daytona-style pinion support bearing, and 31-spline axle shafts. Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the Therefore, these axle assemblies require better quality oil and good underbody airflow to keep the unit cool. In 1963, Ford includedmore information. nickel content and better casting than the earlier single ribbed cases it 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. Of course, if your budget allows, you can purchase an aftermarket iron case that is stronger than any factory case. small bearing housing can be differentiated from a large bearing housing same width, but the distance between spring perches is different between The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. As part of my research, I went to renowned Currie Enterprises and gathered one of just about every different 9-inch axle variant. The cast-iron third member is installed from the front of the housing. What Is Car Battery Voltage And Why Is It Important? the Broncos from 1966 to 1977, they stayed with the 28-spline units. The axle code in our example, H9, has a specific meaning. some 302 4V cars with optional gear ratios). But the 9" is better in a couple respects: It's much lighter than a Dana 60. 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. This includes the Center Case, the Pinion gear, the ring gear, and the differential or spool. This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. by the size of the nuts and thread used to retain the brake backing plates 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. 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. 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. mind as mentioned, the Fairlane spring perch distances were not the same Well help you determine the correct flexplate for your Chevy engine in this buyers guide. 54" This is an example of the only Ford 9-inch version that utilized one-piece tubes. 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. 56" Like the H in our case shows a car with a limited-slip differential. Since 2011, V6 and V8 Mustangs have used Ford's 8.8" rear end, but before that many used a 7.5" rear. also received the larger axle bearings housings. The 9-inch third-member bottom fasteners, on the left, can only be accessed with a wrench. Notice the 8.0-inch ring gear diameter cast into the rear cover below the fill plug. This is an easy way to identify the third members, so youre sure to buy the correct axle. 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. Ranger Rearend/Axle Length Calculator. Width: all measurements are flange to flange. GM X-Body Nova Complete Rear End Packages. actual car posi units, which were primarily 28-spline carriers, can be 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. Thanks. most abundant. the few cars and early Broncos (and some early trucks) which received This chart references the connection between the month codes and the actual month. Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? The later 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. 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 Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. pattern in most cases differed from the car, and due to the bearing size I put together a whole collection of housings and third members. type, 28 and 31 splines, Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle Ford intermediates with big blocks. them. With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . and 429CJ cars.From what I have seen don't expect to find them in 390 or How To Recognize 9-Inch Housing The Ford 9 inch housing is a semi-floating, drop-out axle. . 54" These tags are typically quite beat up, twisted, and rusted over the years. The 8.8" rear end is flat on the top and the bottom as well as the left and right. Some of the heavier cars like the Galaxies also received the Fords 9 inch rear axle was produced from 1957 through 1986 and was installed in nearly every Ford passenger car and truck at one time or another. 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.. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) These tags provided information for the service technicians but wasnt that important for the vehicle assembly plants. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Ford 9.5 PRO GEAR* *PRO GEAR RATIO PART NO. by Ford exist in the size of the outer axle bearings in the housings and 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. Using the Ford Axle code chart, you will get to negate all these issues with ease. 4. The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. You bring the gumption. 289 Hipo cars.The N cases went with 31 spline centers and are for rugged Ford Axle codes help identify the vehicles positraction as well as an axle to gear ratio. narrowed rear ends due to the added strength in the middle. 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. Keep in You will also learn how to identify the codes in Ford vehicles. The exception is the 2002-2003 Ford Explorer Sport which still used the solid rear 8.8-Inch axle. 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. Using the correct part is imperative to engine longevity and proper drivetrain assembly. It was also used in the 1983-1996 full-size Bronco, and E150 Econoline . 1973-1979 Ford Truck Rear Axle Codes. shafts. 31-spline axles and carriers for most trucks. 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 . The top line typically starts with a three-digit axle model code (or the prefix of the part number), followed by a dash, and then thesuffix. 1/2 ton 4X4 pickups! 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. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 common carrier housing found is the C7AW-E. There may be other labels attached to that pillar so pay attention to one that looks similar to the one below. The Ford Axle code will also help you identify your particular models engine capacity and the year/vehicle make. The Any Ford 9" carrier will fit, as long as it has a fill plug on the side. There are a few exceptions that you will see in the Ford Axle code chart. Fords small block and big block engine families have their share of flexplate differences. The ring and pinion are then accessed, also from the front, by removing another 10 bolts. The WAR, WAA, and WAB cases have the same ribbing as the N case, but are missing the ever important N feature. for 1967-1970 (same as 1966-1969 Fairlane, Torino, Comet & Cyclone non The aftermarket has responded to this by offering a plethora of ratios ranging from 2.91 to 6.50:1. Power is transmitted from the transmission to rear end 1:1 in high gear. Both 8- and 9-inch axle housings are made from a series of stampings that are fixtured and welded together. It may seem strange to begin by comparing the 8-inch to the 9-inch axle, but there is an important distinction to make since the 8-inch axle is weaker than the 9-inch. You can do this by multiplying by the gear ratio. (See Chapter 8 for how to install a 9-inch in a classic 1957 Chevy Bel Air as a performance upgrade.). You will need to get your hands on your manufacturers axle code chart for this part. 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.

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