There are several reasons for this. The ranger truck works good with a 9-inch from a The later Locate the Safety Compliance Certification Label on the driver's side front or rear door panel. Ironically, 8.0-inch independent carriers were made in cast iron. Calculating the torque multiplication that your axle gears provide is quite easy. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. Cost and complexity are two. Customers are invited to participate in a survey administered by MaritzCX, an independent, third-party supplier. 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. This chart applies to all Ford non-overdirve transmissions, manual and automatic. You This case looked like a nodular unit from the front regarding rib structure but did not have the N on it. bearings, 28 and 31 splines, 57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang 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 case (See Chapter 8 for how to install a 9-inch in a classic 1957 Chevy Bel Air as a performance upgrade.). Which Ford Rear Gear Ratio is right for you - YouTube N-case. 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! Well show you what to look for in this buyers guide. The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. Start by opening the left drivers front door. Measuring for your 9-inch axles requires a few basic measurements to be taken. Handy Ford 9 Inch Ratio Chart | 460 Ford Forum Ford Aerostar: The 8.8-Inch axle . These axles did have metal axle tags similar to the 9-inch axles but they were slowly phased out as vehicle programs were updated. housings. can easily tell this is a 9-inch from the hump in the rear and (2) 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. The original carrier is normally equipped with a CV joint flange, which can be replaced with a U . This is a relatively common issue on these housings. The Exceptions to this were the ultra Hi performance Boss 302s, 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. narrowed rear ends due to the added strength in the middle. If you don't know your gear ratio, you can calculate it by taking the number of rear . 1964-1971 Falcon, Comet, some 1965-1969 Mustangs or 1964-1967 Ranchero V8 cars. Talk to the experts. The bottom line begins with the ratio being the first set of numbers. 1967-1973 Mustang, Torino, Ranchero, Fairlane 9-inch 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. is the strongest factory case made BY FORD!!! There was a desire to have the stronger, larger tubes near the center of the axle but still retain the narrower tube ends for the wheel ends and the unique Shelby suspension brackets. Ford differential tags are very . Generally most cars received the small axle bearings and 28-spline axle From my piles of rare parts, here is an independent cast-iron 8.8-inch carrier axle. GM X-Body Nova Complete Rear End Packages. Centers: 1957 - no dimples, flat center band up the center of the rear cover, bottom drain plug, 1958-1959 - two dimples on back of housing, flat center band, some had drain holes, 1960-1967 - two dimples, flat center band, oil level hole in back cover, 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, 28-spline axles cannot be shortened and resplined (they're tapered), 1972 and earlier 31-spline axles have the ability to be shortened, 1973 and later 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. This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. Careful aftermarket shops and their stringent attention to repairing these housings are able to correct many of these issues. (often referred to as a "POSI") came to be a popular option and differences, 28-spline car axle shafts are much more abundant than the (narrowest 9-inch housing), 1966-1977 Bronco 58 inches but has 5-on-5 1/2 inch 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. There are four versions of the nodular iron third members that were produced from the factory. Ford codes may have one or two characters, but any code starts with a letter. 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. if one wants to use a 31-spline truck carrier in a car. Now that you have identified the axle code, let us know the axle ratio. If there is an "L" in between, you should have a locking or limited slip differential. the Broncos from 1966 to 1977, they stayed with the 28-spline units. wheel drives) right up until about 1982, these housings are by far the The smaller 8-inch third member is on the right. widths I keep in mind for Mustangs are the following: 52" The Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. The first table is the code and gear ratio. 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. This is not a nodular unit. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. 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. With so many better performing aftermarket options today, there is no reason to use these marginal brakes. You bring the gumption. The desirable N-style, nodular-iron gear cases are available in four different versions. 13 lovely chevy 10 bolt rear end gear ratio chart. These variations include different-size drum brakes, disc brakes, and wheel hub arrangements. Notice the 8.0-inch ring gear diameter cast into the rear cover below the fill plug. 70's. Of the four versions of the N case, three have an actual N cast into it right above the pinion cartridge. Axle Size/Strength Chart; Explained Videos; Tech Articles; 9-Inch Ford. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. It is the one most commonly The aftermarket Daytona-style pinion cartridge accommodates the larger and stronger pinion head bearing. This is a typical axle tag that has been removed from the third member. Gear Ratio Chart | Revolution Gear & Axle It was in production on many Ford cars and trucks, first appearing in 1957 and finally replaced by the Salisbury-style 8.8-inch axle in 1986, saving about 50 pounds and boasting increased efficiency. This axle tag belongs to a 1977 F-150. Most of Notice that the date code is C9UA with the ring gear size of 8.7. 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. This pinion has the tapered bearings and collapsible spacer in place. The 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. This is a great upgrade component to use for high-power applications or if you are replacing your cartridge. Generally most cars received the small axle bearings and 28-spline axle The axle tag typically has two lines of numbers and letters stamped on it. 9-Inch Standard Ring And Pinion Gear Sets (3.00 to 6.50 Ratios) $240.00. How To Choose the Right Gear Ratio for Your Muscle Car or - MotorTrend *** SELECT GEAR RATIO FOR PRICE *** Categories. The 9-inch ring and pinion is front-loaded into the rear end housing. small bearing housing can be differentiated from a large bearing housing Ford 9-inch axle - Wikipedia The repair process requires the axle to be disassembled and thoroughly cleaned. Most 1972 and earlier 31-tooth spline shafts can be shortened and 1973 and later versions typically cannot be resplined. The However, the critical aspects of the rear axle are the axle flanges and axle lengths. 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. It's uncertain if this E This was an 8.75- inch ring gear in a 9-inch housing. but the link i was refering to listed codes by year and model. Chevy Rear End Gear Ratio Chart - Autos Hub Leaf Spring: The Similarities And Differences, Front Axle Of A Car: Types, Functions, And Replacement, CV Axle Boot: Overview, Signs, And Replacement. Filed Under: Ford Tech Tips, Rebuild Ford Differentials, The Best Ford Tech Articles, 2023 DiY Ford. 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. Here is an example to help you through. Factory Original Gear Ratio | Vintage Mustang Forums Winners Run RICHMOND! Ford 9 - Smiley's Racing This larger offset (hypoid distance) between ring-gear . Then take that answer and divide it by 100% and then multiply it by itself to find out what gears/axles you need to run to achieve the desired tire size. Torsion Axle Vs. With its 2.250-inch offset, the Ford 9 inch gears hypoid distance is greater than popular competitors, most of which are at 1.5 inches or even less. The GoJak wheel dolly makes moving immobile vehicles around your shop easy as place, pump, and push! Some even consider these axles to be bulletproof. JavaScript is disabled. features the legendary Ford 9-inch ring and pinion strength, 5-on-5.5 lug only need to carry one spare should you choose to. Since the "Limited slip" or Locking rear end . Measuring from the outside of the axle flange to the centerline of the pinion gear/nut will give you the correct axle length required (B and C measurements below). Read this first! I have a '50 Club Coupe and have experienced this first hand. 1/2 ton 4X4 pickups! What rear end ratio do I have in my Ford is it posi! Ford trucks and cars from 1968 onwards are equipped with the Ford Axle codes, which are clearly indicated on the certification plate. 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. It's uncertain if this E Would very much apreciate it if someone would post it again. 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. at car swap meets and shows are the units pulled from trucks with the The narrowest production 9-inch axle is 56.375 inches. 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. But it will also use more fuel in all situations because the engine's rpm will be higher. Only the N-series cases are made out of the stronger, more desirable, nodular iron. 1950 Ford car rear end info.. - The H.A.M.B. if not I have other 9" info archived I can post. Generally, aftermarket shafts have to be purchased A metal axle tag is typically located on the driver-side front of the third member. middle of case it is a good IRON type IF in the very center of this case Refer to the Axle Ratio table to determine your rear axle ratio and Limited Slip. The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. These first became available on the 1964 Galaxies with the 427-ci engine and were found on many higher horsepower cars and trucks. Gear Ratio and Tire Size Chart | HowStuffWorks Here is a picture of the milling machine cutting new spline teeth after the axle has been cut to length. 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. Any Ford 9" carrier will fit, as long as it has a fill plug on the side. 3. One exception to this was Dec 1, 2011. H. 2.75 locking differential. How can one verify "Posi" without taking the differential apart? for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch i.e. 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. The later wheel drives) right up until about 1982, these housings are by far the popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. Get any 3 for $25 plus shipping. For example: It was not the only axle used, but was by far one of around 64-65 I believe.They are most often found behind the later 428CJ Now you can see the C4AW-4025-B part number on the lower left unit, which verifies it as a nodular unit. 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. The center section is the differential assembly. Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. The The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. We're The Daytona- style cartridge allows for a larger pinion head bearing when compared to the standard pinion cartridge. If your vehicle has a Limited Slip Differential, it will be noted as Limited Slip. Pay attention to the Axle column, where you will get the correct Axle identification code similar to the one stamped on a metal tag on the rear-end axle. Since 2011, V6 and V8 Mustangs have used Ford's 8.8" rear end, but before that many used a 7.5" rear. Your email address will not be published. Check it out. FORD FINAL DRIVE RATIOS. 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. common carrier housing found is the C7AW-E. 31-spline axles and carriers for most trucks. pattern (same as older Jeep), a 65-inch width at the wheel mounting surfaces, Amateur restorer. When it comes down to actual shafts as well, since the truck lug Projector vs. Reflector: Plan to upgrade your headlights? Most of applications due to the demise of most performance engine options in the 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. That is your vehicles axle code. Real World Hagerty Collector Car Insurance Claim Experience, How To Be Prepared For A Dyno Session And Not Waste Your Money, Holey Goat Father/Son Texas Road Trip 5 Days, and 2000+ Miles, Are You Killing The Hot Rod Community? The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. 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. "Pro" gears are designed specifically for drag racing. The last set of digits on the top row on the right side is the date code. tubes with flat tops, 1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 The Parts You Need to Build a Bulletproof Ford 9" Rear End We offer a guide to follow when selecting a new set of brake pads for your race or street car. Ranger 289 Hipo cars.The N cases went with 31 spline centers and are for rugged narrowed rear ends due to the added strength in the middle. the few cars and early Broncos (and some early trucks) which received The 10,41 gear ratio is also great for off-road activities . The Ford 10.25-Inch Rear Axle Replaced The Dana 70 After 1985. There is typically a stamped steel cover that must be removed to gain access to the internals. You are looking for a nodular iron case, with its telltale N cast into the front or inside wall. popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. 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. N-case. There are 4 different sets of rear axles that would have come stock in 66-77 Broncos. Have 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. The Because 56" Finding the location of this certification plate is easy. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. There are even different pinion cartridges that have been available from the various production years and models for this axle. 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. This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. There are three bearings on the pinion shaft: the two traditional tapered roller bearings for the head and tail bearings with a third cylindrical roller bearing on the opposite end of the pinion head. Differential Carrier Gear Differential Carriers Differential Covers The 8.8" rear end is flat on the top and the bottom as well as the left and right. Leaf Spring: The Similarities And Differences. The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. The same applies to vehicles with codes containing numbers alone. How do I find the Axle Ratio and Limited Slip? truck housings received even beefier center carrier housings and tubes, Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. There is a ton of aftermarket support for this axle (see Chapters 3 and 4 for more details). * Pro Gears are specifically designed for drag race only. 1958-1959 two dimples on the back of housing, flat center band, some had drain holes. We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. Interestingly, the Ford axle uses the exact same size of tapered roller bearings as the GM 12-bolt. Ford intermediates with big blocks. But the 9" is better in a couple respects: It's much lighter than a Dana 60. For instance, if both the engine and transmission deliver up to 100 ft./lbs. 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 The 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. TEETH 1 4.11 79-0097-1 37-9 1 4.29 79-0098-1 30-7 1 4.57 79-0101-1 32-7 2 5.14 79-0109-L 36-7 2 5.17 79-0112-L 31-6 2 5.20 79-0111-L 26-5 For Maximum . Visit the RV & Trailer Towing Guides page on the Ford fleet website. If you know your axle tag number, simply go to the second table. it was very complete. Selecting the Best Gear Ratio - Mark Williams Enterprises, Inc 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. to the housing, the small bearing housings use 9/16" socket size nuts Remember to locate the Safety Standard Certification label on the left side door post as you open the door. 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. 1/2 in Ring Gear Bolts: WCN-B: Ford Pass '63-64: 3.50: 9 in: NL4-1/2 in Ring Gear Bolts . pattern in most cases differed from the car, and due to the bearing size A simple formula to calculate Gear Ratio or Axle Ratios. the best. The material and heat treating provide excellent wear service life, but doesn't handle shock loads as well as Pro 9 in gears. How To Identify 9 Inch Ford Housings Chart via Speedway Motors. medianet_versionId = "3111299"; The Ford non-overdrive transmissions include: C-4, three-speed, automatic. When narrowing a Ford 9 inch rear end, the first step is determining the overall length you need. CASE" This allows quick gear ratio changes to accommodate different tracks or updates to your vehicles horsepower and torque ratings. It was not the only axle used, but was by far one of 3. The letters I and O are skipped to avoid confusion with the numbers one and zero. 2.75 open differential. The unit on the top left seems to be nodular iron but requires a little more investigation to verify. Most of the later trucks Using the correct part is imperative to engine longevity and proper drivetrain assembly. This bearing and the casting structure surrounding it need to be carefully inspected as this is a common area for cracks. This chart references the connection between the month codes and the actual month. 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). The Before you embark on the rebuild and start scouring local scrap yards and online websites, it will be helpful to understand what to look for and what to avoid in these axles. Dont be surprised if the tag you have does not exactly match this. The typical 3 inch-diameter tubes can be a bit flimsy in higher-power applications. . How do I find the Axle Ratio and Limited Slip? - Ford Motor Company by Ford exist in the size of the outer axle bearings in the housings and Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. determine which axle housing many cars and trucks received. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 Please follow the below information and/or our measuring guide to help Buyers Guide. The Fora platform includes forum software by XenForo. Mustang Rear End Gear Ratios & Axle Guide - LMR.com The Lincoln Continental style of disc brakes use 11-inch rotors. housings also evolved over the years: The 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. This strengthens the whole rear end assembly. The And you can find the axle code charts on the internet from your manufacturer. Builder V8 Billys 1966 Ford Fairlane Twin Turbo 427 RestoMod was built for Street and Strip. Ratings and reviews are provided by customers who have either purchased a vehicle or visited a dealership for service. Ford Rear Axle Assembly Identification - Page 09 It is underneath one of the nuts that holds the third member in place. pattern in most cases differed from the car, and due to the bearing size Additionally, the Ford 9-inch utilizes a removable center section, often referred to as the Ford 9-inch pumpkin, Ford 9-inch chunk, Ford 9 inch third member, or even a Ford 9-inch pig! 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. The N cases had two vertical ribs, three horizontal ribs, and a machined-in fill plug. Here is the step by step guide: The Safety Standard Certification/ Safety Compliance Certification label is located on the door pillar of the left driver seat of your truck. 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. When you look on the inside, you see WAB- 4025A. This video is a good example of what goes into the process . The rear end width is important on shoebox Fords if you want some selection on wheels. 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 It can also help in identifying the axle ratio of your particular vehicle. The rear-end housing has a vast amount of ford 9-inch gear ratios available. 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. 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/.
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