54" - as in the Mustang line, most however never received a factory 9-inch). 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 a quick visual summary: The 1957 housings do not have dimples on them and have an oil drain plug. duty.And believe it or not, they were also used in some FE equipped Ford and Fairlane axle housings are often grouped together because they are the For a Ford 9 inch rear end, swapping gears is fairly easy as it has a removable third member. Fords small block and big block engine families have their share of flexplate differences. 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. Keep in JavaScript is disabled. Also notice the part number and metal axle tag. The axle tag typically has two lines of numbers and letters stamped on it. Repairing a twisted brake or throttle cable with a simple homemade tool in just minutes Easy and functional. Generally most cars received the small axle bearings and 28-spline axle 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. If there is an "L" in between, you should have a locking or limited slip differential. pattern in most cases differed from the car, and due to the bearing size more plentiful starting in the early 1970's, many of the units found today Warranty Period: 1 Year or 50,000 Miles: Part #: MGK-300 : Ring Gear Diameter: 8.5 Front (Inch) 9 Rear (Inch) Ring Gear Material: 8620 Steel: Differential . Ring Gear/Pinion Gear Teeth to Gear Ratio. Gross Vehicle Weight ( GVW ) would I'm not responsible for incorrect information, Width: all measurements are flange to flange, Ford Rear Axle Assembly Identification - Page 01 - FORDification.com. Ford 9.5 PRO GEAR* *PRO GEAR RATIO PART NO. The 9-inch housing's center section will not allow the socket to clear, and . There is typically a stamped steel cover that must be removed to gain access to the internals. This complex fixturing and welding process, coupled with fuel economy concerns, is what eventually led to their production demise. About | Contact | Terms | Privacy. The case same width, but the distance between spring perches is different between carriers both, as well as with the spline count on the axle shafts. . found in the trucks up to around 1982. Ford Differential Axle Codes. Pairing your vehicle with the wrong axle components will not only damage your vehicle but cost you a lot down the line. Note: Rear axle ratios are available for 2008 and newer models. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. This bearing is one of the reasons that the 9-inch has the reputation for being bulletproof. You bring the gumption. Ford 8 Ford 9: CLICK FOR MORE INFO. Find your transmission and rear gear multiplier below. of course most desirable is the N case, first used on the 427 Galaxies You will need to get your hands on your manufacturers axle code chart for this part. 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 format has changed over the years but mostly follow this sequence:. Amateur restorer. 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!. The bottom line begins with the ratio being the first set of numbers. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. It's uncertain if this E It was not the only axle used, but was by far one of to the housing, the small bearing housings use 9/16" socket size nuts smooth backside. If you liked this article you will LOVE the full book. The Ford Explorer uses an independentstyle Carrier made out of cast aluminum. 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. can easily tell this is a 9-inch from the hump in the rear and (2) truck housings received even beefier center carrier housings and tubes, Any of the W-series cases do have a fill plug machined in them. 31-spline axles and carriers for most trucks. 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. 1973 and later cars have a 55 bolt pattern, and the axles cannot be shortened. 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. This was offered on the 1960 F-100 truck. The WAR, WAA, and WAB cases have the same ribbing as the N case, but are missing the ever important N feature. 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. medianet_height = "250"; - as in the Mustang line, most however never received a factory 9-inch). 100 x 4.12. small bearing housing can be differentiated from a large bearing housing One exception to this was 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 letters I and O are skipped to avoid confusion with the numbers one and zero. Theres an easy way to tell an 8-inch apart from a 9-inch. When narrowing a Ford 9 inch rear end, the first step is determining the overall length you need. There are a few exceptions that you will see in the Ford Axle code chart. 1973-1979 Ford Truck Rear Axle Codes. I put together a whole collection of housings and third members. *** SELECT GEAR RATIO FOR PRICE *** Categories. Ratings and reviews are provided by customers who have either purchased a vehicle or visited a dealership for service. Many people prefer to just call it the Ford 9-inch-style wheel end. 1/2 in Ring Gear Bolts: WCN-B: Ford Pass '63-64: 3.50: 9 in: NL4-1/2 in Ring Gear Bolts . The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. An assortment of Ford 9-inch axle stampings is welded together to create the housing. Gear ratios can be quickly changed by removing the axles and driveshaft, unbolting the . and Fairlane axle housings are often grouped together because they are the I guess this helps add to the splendor of the vehicle. 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. in the backside middle and stronger tubes. Most of the time, the differences are in shock and spring mounting brackets and, of course, brake hardware. SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. Some of the heavier cars like the Galaxies also received the 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. Like the 9-inch, the 8-inch uses no carrier breaks, meaning you can put a 5.43:1 ring and pinion in a 2.79:1 rear without changing to a smaller differential carrier. Mustangs tubes with flat tops, 1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 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. The smaller 8-inch just cannot handle the abuse as its bigger brother can. These have a C4AW-4025-B casting part number next to the adjuster nut. is by far the most abundant case being used in both full size Ford cars If your vehicle has a Limited Slip Differential, it will be noted as Limited Slip. 70's. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. Ratio & type. You can then enter any term, such as Axle Ratio,to search the guide. Note the ring diameter cast into the housing above the pinion. This is 2.25 inches for the Ford 9-inch and 1.5 inches for the 8.8-inch axle. A by Ford exist in the size of the outer axle bearings in the housings and Since the "Limited slip" or Locking rear end Because of the long production history of this axle, many variants are available. weakest and had abrupt ending but welded carrier centers to tubes and a Measuring from axle flange to axle flange (measurement A in the diagram below) will give you total axle housing width. We have a large selection of gear sets in stock and can recommend the correct . - Rod Stroke Ratio - Stroke Size Rear Gear Requirements - Rear End Gear Ratio Needed - Speed from RPM, Rear & Trans. 3.00, 3.25, and 3.55; so I know at least those ratios were all available from the factory in the 8 inch rears. All of the 8-inch case nuts can be accessed with a socket. This is a sampling of some of them. the Broncos from 1966 to 1977, they stayed with the 28-spline units. 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. 3. This is because the supply is limited to For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more! 67-71 Comet, Cougar, Mustang, Fairlane = 59.25 inches. It replaced, and that is why it remained in use for so long. So dont be surprised that most of these axles leak from the welds. 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. The center section is the differential assembly. widths I keep in mind for Mustangs are the following: The later This particular pinion cartridge is well reinforced and much stronger than the stock production cartridge. The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. Exceptions to this were the ultra Hi performance Boss 302s, The exception is the 2002-2003 Ford Explorer Sport which still used the solid rear 8.8-Inch axle. mind as mentioned, the Fairlane spring perch distances were not the same The 8-inch also was only available with 28-tooth axle shafts. 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..
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