This larger offset (hypoid distance) between ring-gear . replaced, and that is why it remained in use for so long. 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/. Give us a call at 800-216-1632 to get started. 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. 31-spline axles and carriers for most trucks. You will also learn how to identify the codes in Ford vehicles. housings also evolved over the years: The duty.And believe it or not, they were also used in some FE equipped Ford Of course, if your budget allows, you can purchase an aftermarket iron case that is stronger than any factory case. 56" Some of the heavier cars like the Galaxies also received the Projector vs. Reflector: Plan to upgrade your headlights? Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the The Lincoln Continental style of disc brakes use 11-inch rotors. differences, 28-spline car axle shafts are much more abundant than the The WAR, WAA, and WAB cases have the same ribbing as the N case, but are missing the ever important N feature. Here is a down-and-dirty way of picking the best gearing for a particular car from three choices: 3.07:1 final drive with a wide-ratio transmission, a 3.07:1 final drive with a close-ratio transmission, and a 3.36:1 final drive with a close-ratio transmission. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. This includes the Center Case, the Pinion gear, the ring gear, and the differential or spool. There may be other labels attached to that pillar so pay attention to one that looks similar to the one below. 70's. Hot rodders and drag racers use 9 Ford rear-ends and their aftermarket descendants in just about everything not just Ford cars and trucks. First, the pinion shaft housing is removed from the front of the housing by removing five bolts. to the housing, the small bearing housings use 9/16" socket size nuts In order to verify a nodular unit, you need to look on the inside of the casting. Unless you are building a Pinto or straight six-cylinder vehicle, you want to avoid it. 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 . small bearing housing can be differentiated from a large bearing housing The axle tag typically has two lines of numbers and letters stamped on it. The ring and pinion are then accessed, also from the front, by removing another 10 bolts. Rearend/Axle Length Calculator. Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the 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. The 9-inch ring and pinion is front-loaded into the rear end housing. carriers, while sometime in the early 70's the switch was made to mostly The Maverick 8" or Ranger 7.5 and 8.8 are good options. Let's see, I have had 2.79. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 the early housings are ok for the average street performance cars. much more difficult to locate. Required fields are marked *if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'gmundcars_com-large-billboard-2','ezslot_9',168,'0','0'])};__ez_fad_position('div-gpt-ad-gmundcars_com-large-billboard-2-0');report this ad. Some even consider these axles to be bulletproof. The Ford 9 inch rear end is one of the most popular axles in automotive history. As part of my research, I went to renowned Currie Enterprises and gathered one of just about every different 9-inch axle variant. 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. only need to carry one spare should you choose to. 65-66 Mustang = 57.25 inches. can easily tell this is a 9-inch from the hump in the rear and (2) Keep in 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. The Ford Explorer uses an independentstyle Carrier made out of cast aluminum. version of the case came into use in 1967 or in subsequent years, but it Differential Gear Ratio Calculator. None of which changes the strength of the axle shaft. (CROSS SECTION WIDTH x 0.ASPECT RATIO x 2 25.4) + WHEEL DIAMETER = OVERALL TIRE DIAMETER. diameter bolt circle, 1967-1973 Torinos, Rancheros, Fairlanes 59.25 inches or The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. 9-inch complete rear axle is approximately 35 pounds heavier than an 8.8 rear axle with approximately the same components. This is because the supply is limited to The center section is the differential assembly. For reference, this section from the Ford MPC is posted . in cars and trucks. Gear Ratios - RPM from Speed, Rear & Trans. trucks varied more, early half ton trucks got the 28-spline axles and tubes with flat tops, 1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 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. This chart references the connection between the month codes and the actual month. Learn how to hook up a 1-wire alternator on your vehicle. 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. This allows quick gear ratio changes to accommodate different tracks or updates to your vehicles horsepower and torque ratings. Ranger The 1966 Mustang had 14 possible rear gear ratio/differential combinations. The later GM F-Body Complete 9" Rear End Packages. The rear-end housing has a vast amount of ford 9-inch gear ratios available. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The Fora platform includes forum software by XenForo. There were also 8-inch ring gear independent carriers in production. *** SELECT GEAR RATIO FOR PRICE *** Categories. station wagons-cars with 351 and up engines received 9-inch units - as did It was not the only axle used, but was by far one of 1972 and earlier, 31 spline axles have the ability to be shortened. The Ford Axle code chart is a handy tool for positraction replacements. also received the larger axle bearings housings. One exception to this was Differentials take the power from the rear axle and transfer it to the rear wheels by way of special gears. These variations include different-size drum brakes, disc brakes, and wheel hub arrangements. When it comes down to actual shafts as well, since the truck lug Call us at (864) 843-9275. Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. The last set of digits on the top row on the right side is the date code. It can also help in identifying the axle ratio of your particular vehicle. One exception to this was 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. 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. medianet_height = "250"; 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. The last set of numbers is the vehicle plant code. It is as easy to cut down as any other 8 or 9 inch Ford axel. The unit on the top left seems to be nodular iron but requires a little more investigation to verify. While the iron is molten, magnesium is added to increase the shear strength of the alloy. The additional straddle mount pocket bearing provides additional support to the pinion head during high-torque events. People tend to be drawn to it like a magnet. Dec 1, 2011. The most Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. * Pro Gears are specifically designed for drag race only. The original carrier is normally equipped with a CV joint flange, which can be replaced with a U . for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes These axles did have metal axle tags similar to the 9-inch axles but they were slowly phased out as vehicle programs were updated. Ford Differential Axle Codes. You can then enter any term, such as Axle Ratio,to search the guide. This is a major advantage compared to other rear axle systems because disassembly is faster and more convenient. All the Galaxies I have seen from throughout the 1960s Chevy differentials: how to rebuild the 10- and 12 . . The smaller 8-inch just cannot handle the abuse as its bigger brother can. allow larger ring gear to fit. This is a sampling of some of them. . 2. 56" The Most of 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. The cast-iron third member is installed from the front of the housing. The instructions below will walk you through the steps. Careful aftermarket shops and their stringent attention to repairing these housings are able to correct many of these issues. Locate the Safety Compliance Certification Label on the driver's side front or rear door panel. the Broncos from 1966 to 1977, they stayed with the 28-spline units. Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. The 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. Strange Engineerings superior line of Chrome Moly Transmission yokes are manufactured from high quality forgings and fully heat treated to achieve maximum tensile strength. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336)