It has been said that it has a higher For instance, if both the engine and transmission deliver up to 100 ft./lbs. Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. $(document).ready( function () {$('#dtTable').DataTable( {paginate: false} );} ); 1954 Ford F100 / 2000 Lincoln Towncar Chassis Swap for Under $1,000, Tire Width Minimum, Maximum, and Ideal Size Chart by Wheel Width, An Online Magazine for DIY Hot Rod Builders. You will need to get your hands on your manufacturers axle code chart for this part. One exception to this was "N Case" was no longer needed for passenger car/truck Once you have identified the label, locate the word AXLE under the bar code section. GM Tri 5 55-57 Chevy Complete 9" Rear End Package. (narrowest 9-inch housing), 1966-1977 Bronco 58 inches but has 5-on-5 1/2 inch mind as mentioned, the Fairlane spring perch distances were not the same 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) . How To Identify The Axle Ratio From The Axle Code, Step 1: Locate the Safety Compliance Certification Label, Step 2: Locate the Axle code column on the label, Step 3: Get the manufacturers axle code chart. The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. 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. JavaScript is disabled. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Axle You will also learn how to identify the codes in Ford vehicles. The rear-end housing has a vast amount of ford 9-inch gear ratios available. From my piles of rare parts, here is an independent cast-iron 8.8-inch carrier axle. 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. This axle tag belongs to a 1977 F-150. All the Galaxies I have seen from throughout the 1960s WJ Handy Dad recommends safe practices when working on vehicles/homes and or with tools seen or implied in this video. around 64-65 I believe.They are most often found behind the later 428CJ Theres an easy way to tell an 8-inch apart from a 9-inch. 1/2 ton 4X4 pickups! 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Because of their strength, youll see these 9 inch rear ends used in just about every make of car, truck, and customs. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. Because of the long production history of this axle, many variants are available. Written by Joe Palazzolo and Republished with Permission of CarTech Inc. housings appeared in either 1966 or 1967 with the familiar "Hump" This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. but the link i was refering to listed codes by year and model. Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. Axles Tubes Are 4-Inches. Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more! for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes socket size and 7/16" fine thread. in cars and trucks. Finding the location of this certification plate is easy. Notice the 8.0-inch ring gear diameter cast into the rear cover below the fill plug. We have a large selection of gear sets in stock and can recommend the correct . A 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. How To Identify 9 Inch Ford Housings Chart via Speedway Motors. A strong 9" with a nodular diff and 31 spline axles is fairly comparable in strength to a stock Dana 60 rear end. CASE" Ford 9 inch Gears. The cast-iron third member is installed from the front of the housing. used the 9-inch rear, regardless of engine size. Gear Ratios - RPM from Speed, Rear & Trans. It has more ground clearance than a Dana 60. Here is an example of a weld repair on a factory original housing. Strange Engineerings superior line of Chrome Moly Transmission yokes are manufactured from high quality forgings and fully heat treated to achieve maximum tensile strength. medianet_height = "250"; Traditional BOM's are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. 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 . Note the ring diameter cast into the housing above the pinion. The smaller 8-inch just cannot handle the abuse as its bigger brother can. 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 . For example: We offer a guide to follow when selecting a new set of brake pads for your race or street car. Ford Axle code identification, Read more: Front Axle Of A Car: Types, Functions, And Replacement. 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. When you buy through our links, we may get a commission. 31-spline axles and carriers for most trucks. 56" Calculate your differential gear ratio from RPM, tire size and desired MPH. The Ford version uses larger axle shafts and different lube flow strategy. for the swap to be performed. to the housing, the small bearing housings use 9/16" socket size nuts No. There are also unique domestic special-option tags, which dont follow the format. is by far the most abundant case being used in both full size Ford cars It's uncertain if this E Our editors pick the products & services we write about. Calculators. Rhodes Race Cars Unwelded Fabricated Rear End Housing Ford 9 in. This strengthens the whole rear end assembly. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. There are four versions of the nodular iron third members that were produced from the factory. GM X-Body Nova Complete Rear End Packages. While the larger offset makes the ring and pinion gears stronger, the additional sliding of the gear teeth creates more heat in the axle. 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. The Ford 9 inch rear end is one of the most popular axles in automotive history. Like the H in our case shows a car with a limited-slip differential. Ford rear ends, or differentials, were manufactured by either the Dana Corporation or Ford. Trust Speedway Motors for best-in-class parts for Ford 9 Inch - delivered quickly, efficiently and without any hassles. This is a sampling of some of them. Careful aftermarket shops and their stringent attention to repairing these housings are able to correct many of these issues. People have been climbing around scrap yards for years to find the best examples of the 9-inch axle. widths I keep in mind for Mustangs are the following: 52" You can then enter any term, such as Axle Ratio,to search the guide. Keep in Using the correct part is imperative to engine longevity and proper drivetrain assembly. This is a great upgrade component to use for high-power applications or if you are replacing your cartridge. Thanks. The original applications are as follows: 1. Of the four versions of the N case, three have an actual N cast into it right above the pinion cartridge. GM A-Body Complete 9" Rear End Packages. if so is this what you are looking for. 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 Ford 8 Ford 9: CLICK FOR MORE INFO. carriers both, as well as with the spline count on the axle shafts. . 4. Richmond Tech Support. This is an easy way to identify the third members, so youre sure to buy the correct axle. Many aftermarket companies produce 9 Ford equivalent rear axles for the drag racing and hot rod industry. 8. It was not the only axle used, but was by far one of Ford 9 Inch Rear End Gear Ratios Chart1969 impala ss 427 4 speed. 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. 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 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. Fords small block and big block engine families have their share of flexplate differences. If the case has two verticle RIBS ,from top to If an L is included, it was equipped with a limited-slip differential or Traction- Lok. Both standard and W-series cases are made out of gray cast iron. The large bearing size was available with fi ve different brake drum widths. weakest and had abrupt ending but welded carrier centers to tubes and a These labels have a specific code that is similar to the axle code on the 9-inch axles. Buyers Guide. 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. 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. Customers are invited to participate in a survey administered by MaritzCX, an independent, third-party supplier. The image below shows the Safety Label of a Ford Truck. It was required to repair a leaking weld. most abundant. Well show you what to look for in this buyers guide. This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. Find the two-digit code under AXLE. Exceptions to this were the ultra Hi performance Boss 302s, (It was later used for pick-ups and Broncos.) Select the Towing Guide for your vehicle's model year. Ring Gear/Pinion Gear Teeth to Gear Ratio. One exception to this was 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.. GM Truck Complete Rear End Packages. Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. control arm mount. It is the one most commonly The transmission yokes are CNC machined to assure concentricity and balance for ideal driveshaft operation. This was offered on the 1960 F-100 truck. The axle code in our example, H9, has a specific meaning. People tend to be drawn to it like a magnet. 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. applications due to the demise of most performance engine options in 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. Ford differential tags are very . The letters I and O are skipped to avoid confusion with the numbers one and zero. The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. The date code is stamped on the tag. 1957 . 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! 70's. 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. 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!. 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. This allows quick gear ratio changes to accommodate different tracks or updates to your vehicles horsepower and torque ratings. 31-spline carriers and axle shafts. 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. earlier housings used in cars from 1957 to mid 1960s tended to be the It was then replaced by the Ford 8.8 inch rear axle. Read this first! 1/2 in Ring Gear Bolts: WCN-B: Ford Pass '63-64: 3.50: 9 in: NL4-1/2 in Ring Gear Bolts . Variations By positraction, we talk about the type of differential the car uses, whether a limited-slip differential or a conventional non-Positraction differential. Restoration matching issues will be avoided since the right optioned components will be used to make the restoration. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . only need to carry one spare should you choose to. The format has changed over the years but mostly follow this sequence:. Ford used 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. 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. There is a gear ratio stamped on the tag. weakest and had abrupt ending but welded carrier centers to tubes and a Mustangs and Fairlanes. The best gear ratio for a GM 10 bolt is 10,41 because it is the only ratio that allows your engine to turn 10,41 times per minute. Ray. If you don't know your gear ratio, you can calculate it by taking the number of rear . carriers both, as well as with the spline count on the axle shafts. The 9-inch housing's center section will not allow the socket to clear, and . It was not the only axle used, but was by far one of Install Kits and Gears Sets Listed By Rear End. WJ Handy Dad assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. A copy of the Ford Axle Code Chart is linked below in this article. Rearend/Axle Length Calculator. and Fairlane axle housings are often grouped together because they are the 66-75 large bearing, 3. 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. Interestingly, the Ford axle uses the exact same size of tapered roller bearings as the GM 12-bolt. Cost and complexity are two. A pattern (same as older Jeep), a 65-inch width at the wheel mounting surfaces, Most have the two driving holes for the manufacturing process while one has a more square looking drive end. smooth backside. The 1958s and 1959s have two dimples on either side of the housing and some have drain plugs. 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. 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. Note the two lower bolts at 6 and 7 oclock have straight access with a socket. How to Narrow a 9 Inch Ford Rear End. 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. housings also evolved over the years: most abundant. There may be other labels attached to that pillar so pay attention to one that looks similar to the one below. 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. Here are the internal sides of the same three units. For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio. Differentials take the power from the rear axle and transfer it to the rear wheels by way of special gears. Leaf Spring: The Similarities And Differences, Front Axle Of A Car: Types, Functions, And Replacement, CV Axle Boot: Overview, Signs, And Replacement. can easily tell this is a 9-inch from the hump in the rear and (2) 61.25 inches, 1967-1971 Comets, Cougars, Fairlanes 59.25 inches, 1967-1973 medium and big block Mustangs and Cougars, 1966-1971 Fairlanes, Torinos, Montegos, Comets, and other Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle There are several reasons for this. The repair process requires the axle to be disassembled and thoroughly cleaned. Power is transmitted from the transmission to rear end 1:1 in high gear. We're The rear-end housing has a vast amount of ford 9-inch gear ratios available. Spring perches must be cut and re-welded in order It is as easy to cut down as any other 8 or 9 inch Ford axel. 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 . The "rough" You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. Check it out. Generally, aftermarket shafts have to be purchased To determine the axle ratioof your vehicle, locate thetwo-digitaxle code first, then use your vehicle'stowing guide to find the axle ratio that corresponds to that code.