This is a relatively common issue on these housings. Identifying a differential hinges the ability to distinguish the two primary rear-end types---the 8- or 9-inch rear end---denoting ring-gear size. 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 N cases typically came with the larger Daytona-style pinion support bearing, and 31-spline axle shafts. Ratio & type. 1967-1973 Mustang, Torino, Ranchero, Fairlane 9-inch Ford Rear Axle Assembly Identification - Page 01 . 56" "N Case" was no longer needed for passenger car/truck 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. 1973-1979 Ford Truck Rear Axle Codes - FORDification.net With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . If the axle tag is missing, as most are, you need to remove the third member in order to know what ratio you have and if it has a limited-slip or not. For example, Ford says the 2018 F-350 Super Duty 4x2 regular cab pickup equipped with the 6.2-liter . There were also 8-inch ring gear independent carriers in production. Builder V8 Billys 1966 Ford Fairlane Twin Turbo 427 RestoMod was built for Street and Strip. Mustangs and Fairlanes. The ring gear speed sensor is shown in the upper right-hand portion of the photograph. as the Mustang. Along with the many different brake and wheel end varieties, many different styles of axle shaft ends were manufactured. The ring and pinion are then accessed, also from the front, by removing another 10 bolts. This consists of the Ford Pickup F100 lineup till the Ford F350 lineup. The large bearing size was available with fi ve different brake drum widths. The 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.. The most The transmission yokes are CNC machined to assure concentricity and balance for ideal driveshaft operation. The 1966 Mustang had 14 possible rear gear ratio/differential combinations. can tell this is a 9-inch from the removable carrier on the front. and 429CJ cars.From what I have seen don't expect to find them in 390 or Choosing New Rearend Gears Is As Easy As 1, 2, 3, 4 "N Case" was no longer needed for passenger car/truck There are three versions with external Ns cast in; note the more curved style on the top right. The aftermarket has responded to this by offering a plethora of ratios ranging from 2.91 to 6.50:1. widths I keep in mind for Mustangs are the following: 52" This bearing is one of the reasons that the 9-inch has the reputation for being bulletproof. 66-75 small bearing, 2. bearings, 28 and 31 splines, 57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang The rear-end housing has a vast amount of ford 9-inch gear ratios available. Ford used GM B-Body Complete 9" Rear End Packages. This pinion shows excessive wear on the trunnion surface and should not be re-used. All the Galaxies I have seen from throughout the 1960s If there is an "L" in between, you should have a locking or limited slip differential. Like the H in our case shows a car with a limited-slip differential. Selecting the Best Gear Ratio - Mark Williams Enterprises, Inc It was then replaced by the Ford 8.8 inch rear axle. These were used sporadically until about 1969. It's uncertain if this E If the case has two verticle RIBS ,from top to Because Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the some 302 4V cars with optional gear ratios). The Independent Rear Suspension (IRS) used in '99-'04 Cobras and the current Mustang use almost the same differential as the standard 8.8. The Ford Axle code chart is a handy tool for positraction replacements. Give us a call at 800-216-1632 to get started. CASE" Calculate Rear End Gear Ratio Needed - speedmaster79.com For a Ford 9 inch rear end, swapping gears is fairly easy as it has a removable third member. A forum community dedicated to Ford performance owners and enthusiasts. Both standard and W-series cases are made out of gray cast iron. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. Gear Ratio and Tire Size Chart | HowStuffWorks 59.25 inches to 61.25 inches, 1957-1959 Ranchero and station wagon rears, 57.25 inches, 1967-1971 Comet, Cougar, Mustang, Fairlane, 59.25 inches, 1967 Fairlane 63.50 inches (coil springs), 1957-1959 Ranchero and station wagon 57.25 It is the one most commonly Locate the Safety Compliance Certification Label on the driver's side front or rear door panel. There are four versions of the nodular iron third members that were produced from the factory. the few cars and early Broncos (and some early trucks) which received We'll also walk you through choosing the correct parts in order to make this installation a breeze! A 2-inch version is not shown. The 9-inch housing's center section will not allow the socket to clear, and . Many people prefer to just call it the Ford 9-inch-style wheel end. 67-70 Mustang = 59.25 inches. The complete guide to master any grease gun, Battery vs. Starter vs. Alternator: How to jumpstart even the most stubborn of car. Read this first! 8. This is because the supply is limited to In 1963, Ford includedmore information. The bottom line begins with the ratio being the first set of numbers. 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. 31-spline carriers and "Traction Loc" style posi unit. While the larger offset makes the ring and pinion gears stronger, the additional sliding of the gear teeth creates more heat in the axle. The middle number is the ring gear diameter in inches, typically an 8 or 9. I reference these axles based on the ring gear nominal outside diameter in inches. Notice that the date code is C9UA with the ring gear size of 8.7. Chevy Rear End Gear Ratio Chart - Autos Hub The most Ford differential tags are very . Any of the W-series cases do have a fill plug machined in them. Differential Identification | West Coast Differentials N-case. carriers, while sometime in the early 70's the switch was made to mostly Projector vs. Reflector: Plan to upgrade your headlights? 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle 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. the best. The 8.8 is a traditional semi-fl oat Salisbury axle with C-washers for axle retention. How To Recognize 9-Inch Housing The Ford Axle code will also help you identify your particular models engine capacity and the year/vehicle make. Call 800.979.0122, 7am-10pm, everyday. 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. Some have only one access hole for the backing plate bolts, while others have three. (The third digit of the axle code identifies the ratio and/or capacity of the front axle, if applicable. in the backside middle and stronger tubes. The 70's. Keep in While the iron is molten, magnesium is added to increase the shear strength of the alloy. Ford 9 inch gears - Strange Engineering The Ford 8.8-inch axle has a cast center section and the internal components are installed from the rear. Here is an example of a weld repair on a factory original housing. Now you can see the C4AW-4025-B part number on the lower left unit, which verifies it as a nodular unit. narrowed rear ends due to the added strength in the middle. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. housings. Ford Aerostar: The 8.8-Inch axle . Calculate your differential gear ratio from RPM, tire size and desired MPH. The tags were replaced with adhesive labels that are placed around the axle tube near the brake and wheel end. 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. smooth backside. It was not the only axle used, but was by far one of 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. carriers both, as well as with the spline count on the axle shafts. On this particular third member, the original copper washers that were under the factory fasteners have been discarded as well. Are reviews modified or monitored before being published? Both axles share a common design and are often referred to as banjo style or third-member style. Written by Joe Palazzolo and Republished with Permission of CarTech Inc. Gross Vehicle Weight ( GVW ) would the Broncos from 1966 to 1977, they stayed with the 28-spline units. The case to the housing, the small bearing housings use 9/16" socket size nuts larger wheel bearing housings. in cars and trucks. can easily tell this is a 9-inch from the hump in the rear and (2) Ford 9 inch rear end identification is easy and can be accomplished with nothing more than a deep socket as a "go-no-go" gauge for the bottom two retaining nuts on the center section. mind as mentioned, the Fairlane spring perch distances were not the same 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. Our aluminum cases are manufactured from premium material sourced in the USA, designed and machined in-house, and offered in various forms to meet the requirements of the most demanding applications. Here are the internal sides of the same three units. When you buy through our links, we may get a commission. You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. We will look at what axle codes are and how to identify the axle ratio from the code. It allows for the pinion side Center Section to be removed. if not I have other 9" info archived I can post. 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. housings also evolved over the years: The 1967-1973 Mustang axles identified by wheel flange: two large holes and counter sunk center - 31 splines. GM Tri 5 55-57 Chevy Complete 9" Rear End Package. Ford 9-Inch Housing Identification and Axle Measurement - Speedway Motors The unit on the top left seems to be nodular iron but requires a little more investigation to verify. Any sufficiently advanced technology is indistinguishable from magic . Ford 9-inch differentials | Hemmings How To Identify 9 Inch Ford Housings Chart via Speedway Motors. 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. There are a few exceptions that you will see in the Ford Axle code chart. 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. The Ford 9 inch rear end is one of the most popular axles in automotive history. 1/2 ton 4X4 pickups! . version of the case came into use in 1967 or in subsequent years, but it Ford 9-inch axle - Wikipedia It has been said that it has a higher type, 28 and 31 splines, Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle There are several reasons for this. always looking for good content to share with The 9-inch housings center section will not allow the socket to clear, and you must remove the two bottom retaining nuts with a boxed end wrench. Here is a picture of the milling machine cutting new spline teeth after the axle has been cut to length. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 earlier housings used in cars from 1957 to mid 1960s tended to be the Buyers Guide. You will also learn how to identify the codes in Ford vehicles. Axle Ratio : Axle Ratio : Diesel: 5.13: 4.10: 3.55: Gas: 4.10: 3.55 : Trans Ratio: . Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. 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. It's uncertain if this E
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