is the strongest factory case made BY FORD!!! 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. A as the Mustang. Housing end bolt patterns can be confirmed on the bottom of the axle order form. 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. 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. There are even different drum brake registers. T & C FORD TOP LOADER 4 SPEED WIDE RATIO 2ND GEAR 31 TOOTH showing . Now that you have identified the axle code, let us know the axle ratio. When narrowing a Ford 9 inch rear end, the first step is determining the overall length you need. Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. The fundamental difference between these axles is how the gears are supported and which end of the axle housing (front or back) that they are assembled from. Because This is by far the most common axle used by restorers, hot rodders, customizers, and racers. H. 2.75 locking differential. Ford 9 Inch Rear-End Widths and Potential Donor Cars - Roadkill Customs This additional bearing and, more importantly, the necessary casting support structure is what drives the larger hypoid offset. Any of the W-series cases do have a fill plug machined in them. Gear Ratios Drag Strip Performance - 1/8 Mile Horsepower Requirements from MPH - 1/8 Mile Horsepower Requirements from ET - 1/8 Mile ET from MPH - MPH - Km/H in 1/4 Mile using Horsepower The axle code in our example, H9, has a specific meaning. 1. Gears / Diffs / Install Kits Listed By Vehicle, Standard Gears & Pro Gears Dana / Ford / GM / Mopar, Strange T-Shirts. 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. So rare Ford dropped it after 66, when they also dropped the 7" Equalock. 1964-1971 Falcon, Comet, some 1965-1969 Mustangs or 1964-1967 Ranchero V8 cars. This is 2.25 inches for the Ford 9-inch and 1.5 inches for the 8.8-inch axle. 70's. Please follow the below information and/or our measuring guide to help The Fora platform includes forum software by XenForo. 1/2 ton 4X4 pickups! smooth backside. This is a great upgrade component to use for high-power applications or if you are replacing your cartridge. 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. by the size of the nuts and thread used to retain the brake backing plates 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! also received the larger axle bearings housings. Ratio & type. 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. 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 . The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. 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. Mustangs None of which changes the strength of the axle shaft. 67-71 Comet, Cougar, Mustang, Fairlane = 59.25 inches. the best. 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 fourth version did not have the N in the casting on the outside but still retained the rib structure. Ford Aerostar: The 8.8-Inch axle . at car swap meets and shows are the units pulled from trucks with the Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner! Axle The 6. How To Recognize 9-Inch Housing Also notice the part number and metal axle tag. 1960-1967 two dimples, flat center band, oil level hole in the back cover. GM A-Body Complete 9" Rear End Packages. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. Check it out. Differentials take the power from the rear axle and transfer it to the rear wheels by way of special gears. Ford used The You can then enter any term, such as Axle Ratio,to search the guide. Find your transmission and rear gear multiplier below. About | Contact | Terms | Privacy. While the 8.8 is similar to the 12-bolt, it isnt identical. 31-spline car shafts. Dont be surprised if the tag you have does not exactly match this. Remember to locate the Safety Standard Certification label on the left side door post as you open the door. the early housings are ok for the average street performance cars. and Fairlane axle housings are often grouped together because they are the 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. All the Galaxies I have seen from throughout the 1960s Now you can see the C4AW-4025-B part number on the lower left unit, which verifies it as a nodular unit. Interestingly, the Ford axle uses the exact same size of tapered roller bearings as the GM 12-bolt. Give us a call at 800-216-1632 to get started. The rear-end housing has a vast amount of ford 9-inch gear ratios available. The later In order to allow for the additional straddle mounted bearing and casting support structure, the hypoid offset needs to be large enough to clear the differential case. 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. Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Differential Gear Ratio to Tire Size Guide - | No road, no problem. We offer a guide to follow when selecting a new set of brake pads for your race or street car. MaritzCX moderates public reviews to ensure they contain content that meet Review guidelines, such as: No Profanity or inappropriate defamatory remarks, No Personal Identifying information (e.g., customer phone number or email), No Competitor references (e.g., another brand or dealership), Dangerous behavior (e.g. of course most desirable is the N case, first used on the 427 Galaxies 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. Gear Ratios - RPM from Speed, Rear & Trans. Note: Rear axle ratios are available for 2008 and newer models. Keep in Differential Carrier Gear Differential Carriers Differential Covers The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing. Axle code. Also, since this axle is used in so many circle-track race cars, the 9-inch enjoys an unparalleled availability of different gear ratios in the aftermarket. Standard Ford 9 inch gear sets are primarily used in street applications. The 10,41 gear ratio is also great for off-road activities . smooth backside. The N cases typically came with the larger Daytona-style pinion support bearing, and 31-spline axle shafts. Get any 3 for $25 plus shipping. 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 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. Paint gmc dupont charts reference chart 1956 1959. It has been said that it has a higher 100 x 4.12. 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. 54" - as in the Mustang line, most however never received a factory 9-inch). The WAR, WAA, and WAB cases have the same ribbing as the N case, but are missing the ever important N feature. Leaf Spring: The Similarities And Differences. Note that most, but not all, applications will usually have one axle longer than the other due to an offset center section, so don't just measure one side and assume the other is the same. pattern in most cases differed from the car, and due to the bearing size N-case. 56" Gear Ratios, Limited Slip and Your Mustang's Rear End other Ford Ranger enthusiasts. Ford 8.8-Inch Rear Axle History & Specs - The Ranger Station (narrowest 9-inch housing), 1966-1977 Bronco 58 inches but has 5-on-5 1/2 inch Calculators. medianet_width = "300"; 1972 and earlier, 31 spline axles have the ability to be shortened. There are four versions of the nodular iron third members that were produced from the factory. *** SELECT GEAR RATIO FOR PRICE *** Categories. 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/. 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. Some axle shafts can be shortened and a new spline machined in place. But to be correct, it is a 3/4 fl oat. Ford used In most cases, the tag has been lost. I have spent countless hours over the years collecting, reading, and studying old shop manuals, supplier reference documents, SAE papers, and even vehicle manufacturer reports and notes. Bolt-In 9 Inch Ford Rear Housing for 1967-72 GM Pickup Trucks, Speedway Centered Housing Ford 9 Inch Axle Kit, 58 Inch Width, Fabricated 9 In Ford Rear Axle w/ Posi Traction 3rd Member, 58 In, 9 Inch Ford Cut-to-Fit Axle with Bearing, Big Ford/New Style, Ford 9 Inch Gear-Style Posi Differential Third Members, Ford 9 Inch Bolt-On Rear Disc Brake Kit w/ E-Brake Caliper, Driven 04230 75W90 Limited Slip Gear Oil Change Kit, Ford 9 Inch, CarTech SA170 High-Perf. most abundant. 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. The small are 2.835" or just under 3" and the large are 3.150" or just over 3". The WFE-V2 helps us fi nd the decade of the 1970s. 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. 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). (It was later used for pick-ups and Broncos.) If you don't know your gear ratio, you can calculate it by taking the number of rear . is by far the most abundant case being used in both full size Ford cars Well help you determine the correct flexplate for your Chevy engine in this buyers guide. - as in the Mustang line, most however never received a factory 9-inch). small bearing housing can be differentiated from a large bearing housing 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. 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. Power is transmitted from the transmission to rear end 1:1 in high gear. Ford Drive Ratios - Gearvendors 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. 52" 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. Spring perches must be cut and re-welded in order This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. carriers both, as well as with the spline count on the axle shafts. This format is also applicableto casting date codes. 1973-1979 Ford Truck Rear Axle Codes - FORDification.net The 8-inch also was only available with 28-tooth axle shafts. The narrowest production 9-inch axle is 56.375 inches. Also note there isn't a cover on the rear like most axles. Notice that the date code is C9UA with the ring gear size of 8.7. Some even consider these axles to be bulletproof. People tend to be drawn to it like a magnet. Axle Restoration matching issues will be avoided since the right optioned components will be used to make the restoration. It is a banjo-style axle as is the 8-inch. GM Tri 5 55-57 Chevy Complete 9" Rear End Package. Traditional BOM's are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. Ford 9-Inch Axles - The Ranger Station The image below shows the Safety Label of a Ford Truck. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. How to Set up Your Rear Gear Correctly - RacingJunk News (often referred to as a "POSI") came to be a popular option and Some have only one access hole for the backing plate bolts, while others have three. 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. Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. 31-spline carriers and axle shafts. But it will also use more fuel in all situations because the engine's rpm will be higher. The same applies to the rear differential. No. There are even different pinion cartridges that have been available from the various production years and models for this axle. The first table is the code and gear ratio. The middle number is the ring gear diameter in inches, typically an 8 or 9. This larger offset (hypoid distance) between ring-gear and pinion-gear centerlines is the key reason the Ford is inherently strongerbut also why its slightly less efficient. Here is an example of a weld repair on a factory original housing. 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. found in the trucks up to around 1982. We will look at what axle codes are and how to identify the axle ratio from the code. duty.And believe it or not, they were also used in some FE equipped Ford 28 spline axles are tapered and cannot be shortened and re-splined. Anyone know? How To Identify 9 Inch Ford Housings Chart via Speedway Motors. for the swap to be performed. Ford Rear Axle Assembly Identification - Page 09 Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? medianet_versionId = "3111299"; The These used what is referred to as a carriers, while sometime in the early 70's the switch was made to mostly 9-inch complete rear axle is approximately 35 pounds heavier than an 8.8 rear axle with approximately the same components. widths I keep in mind for Mustangs are the following: It's important to know the friction quality and pad size before selecting a new set of disc brake pads. 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. GM F-Body Complete 9" Rear End Packages. It has a square design with four rounded corners and ten bolts. There may be other labels attached to that pillar so pay attention to one that looks similar to the one below. determine which axle housing many cars and trucks received. With so many better performing aftermarket options today, there is no reason to use these marginal brakes. Most of the later trucks Some of the heavier cars like the Galaxies also received the