6. 2. 31-spline carriers and axle shafts. When narrowing a Ford 9 inch rear end, the first step is determining the overall length you need. Call us at (864) 843-9275. Most of Like most Ford axles, the 9-inch has a single hypoid ring gear mounting distance, so, unlike the Dana and GM axles that require unique differential carriers based on ratio, a single differential carrier works with all of the Ford ratios. There is a ton of aftermarket support for this axle (see Chapters 3 and 4 for more details). 1967-1973 Mustang, Torino, Ranchero, Fairlane 9-inch - Rod Stroke Ratio - Stroke Size Rear Gear Requirements - Rear End Gear Ratio Needed - Speed from RPM, Rear & Trans. housings. - as in the Mustang line, most however never received a factory 9-inch). 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. to the housing, the small bearing housings use 9/16" socket size nuts of course most desirable is the N case, first used on the 427 Galaxies This pinion has the tapered bearings and collapsible spacer in place. if one wants to use a 31-spline truck carrier in a car. For a better experience, please enable JavaScript in your browser before proceeding. This chart applies to all Ford non-overdirve transmissions, manual and automatic. 56" It is underneath one of the nuts that holds the third member in place. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. by the size of the nuts and thread used to retain the brake backing plates to the housing, the small bearing housings use 9/16" socket size nuts It is the one most commonly With the chart in hand, locate your vehicles axle code on the axle code column. 1/2 in Ring Gear Bolts: WCN-B: Ford Pass '63-64: 3.50: 9 in: NL4-1/2 in Ring Gear Bolts . The case This is an example of the only Ford 9-inch version that utilized one-piece tubes. The Ford 8.8-inch axle has a cast center section and the internal components are installed from the rear. How to Identify Ford Rear Ends | It Still Runs housings appeared in either 1966 or 1967 with the familiar "Hump" small bearing housing can be differentiated from a large bearing housing Many people prefer to just call it the Ford 9-inch-style wheel end. You will need to get your hands on your manufacturers axle code chart for this part. Talk to the experts. version of the case came into use in 1967 or in subsequent years, but it Gear Ratios, Limited Slip and Your Mustang's Rear End These variations include different-size drum brakes, disc brakes, and wheel hub arrangements. . The 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. Guide To Ford Truck & SUV Axles - Blue Oval Trucks The BOM will identify the model number, the gear ratio, the type of differential, and all component parts. Exclusive 9" Gear Ratios - Quick Performance All of the 8-inch case nuts can be accessed with a socket. 31-spline car shafts. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. 1963 Falcon 5 lug rear end questions. - FordSix Performance Forum Calculating the torque multiplication that your axle gears provide is quite easy. Our expert customer support technicians are available Monday through Friday from 7:00 a.m. until 7:00 p.m., CST. What rear end ratio do I have in my Ford is it posi! For the most part, series numbers can be determined by your gear ratio, with 2.73 and lower rearend gear ratios falling in the 2-Series, 3.08 to 3.90 rearend gear ratios falling in the 3-Series, and 4.10 and higher rearend gear ratios falling in the 4-Series. Front Axle Codes While the parts catalog says "The third digit of the axle code identifies the ratio and/or capacity of the front axle", that is not true.As seen below, there are only 4 codes (2 - 5) and they do not define the axle ratio nor capacity.In fact, to find the front axle ratio you need the codes off the axle itself, as shown here: The Mustang Shelby GT housing is an easy one to spot, albeit rare, because it has extreme tapering of the axle tubes at the ends. Again, the overall first-gear ratio with the TH400 and 4.10:1 rear gear would be 10.168:1. Discount is automatically applied. Read this first! If measuring the drum-to-drum distance, add .200-inch to these values. We have a large selection of gear sets in stock and can recommend the correct . 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. 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. Both standard and W-series cases are made out of gray cast iron. Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. 31-spline carriers and axle shafts. There are 4 different sets of rear axles that would have come stock in 66-77 Broncos. An assortment of Ford 9-inch axle stampings is welded together to create the housing. These axles had a stout 2.25-inch ring gear offset as compared to a 1.5-inch ring gear offset of the later 8.8-inch axle. 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. Read more: CV Axle Boot: Overview, Signs, And Replacement. Tech Tip: Ford 9" Rear Axle Information - Pit Stop USA This additional bearing and, more importantly, the necessary casting support structure is what drives the larger hypoid offset. duty.And believe it or not, they were also used in some FE equipped Ford 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. These axles did have metal axle tags similar to the 9-inch axles but they were slowly phased out as vehicle programs were updated. But it will also use more fuel in all situations because the engine's rpm will be higher. But the 9" is better in a couple respects: It's much lighter than a Dana 60. Click on the 'Submit' button to find out how you I'm not responsible for incorrect information, Width: all measurements are flange to flange, Ford Rear Axle Assembly Identification - Page 01 - FORDification.com. It is still used in NASCAR racing as well. Original ratios are 2.47, 2.50, 2.75 or 3.0 with the 2.50 being the most common. Ford used Ford personnel and/or dealership personnel cannot modify or remove reviews. The Ford 8.8-inch axle has the same ring gear mounting distance (see Chapter 7) for all ratios, just like the 9-inch. Any of the W-series cases do have a fill plug machined in them. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. But if youre looking for an original, they can be spotted quite readily even without an axle identifycation tag. From the arrow, you can see the axle code is H9. The case Exceptions to this were the ultra Hi performance Boss 302s, With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. station wagons-cars with 351 and up engines received 9-inch units - as did Axle Ratios - Gary's Garagemahal (the Bullnose bible) The WAR, WAA, and WAB cases have the same ribbing as the N case, but are missing the ever important N feature. I guess this helps add to the splendor of the vehicle. There are four versions of the nodular iron third members that were produced from the factory. Handy Ford 9 Inch Ratio Chart | 460 Ford Forum Dana 50 - Ford Front Dana 60 - Standard or Reverse Rotation Ring Gear Diameter: 9" / 229mm Ring Gear Diameter: 9.75" / 248mm Pinion Diameter / Spline: 1.375" / 26 Pinion Diameter / Spline: 1.625" / 29 Ring Gear Bolts: (10) 7/16"x20 RH Ring Gear Bolts: (12) 1/2"x18 RH Cover Bolts: 10 Cover Bolts: 10 Carrier Breaks: None Carrier Breaks: 4.10 / 4.56 The Ford Mustang and Thunderbird used this style for a few model years. You can find the axle code on the Safety Standard Certification label information. 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. Call 800.979.0122, 7am-10pm, everyday. We stand behind our products with some of the smartest technicians in the industry. 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. The N cases typically came with the larger Daytona-style pinion support bearing, and 31-spline axle shafts. Produced from 1957 to 1987 by the Ford Motor Company, it was used in full size . and Fairlane axle housings are often grouped together because they are the The Ford 9-inch has a reputation as a durable axle that can transmit enormous torque, and this is rightfully deserved. found in the trucks up to around 1982. In contrast, on the 9-inch, two nuts on the bottom at about the 6 and 7 oclock positions cannot be accessed with a socket and require a wrench. 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. Gear Ratio Chart | Revolution Gear & Axle Later station wagons-cars with 351 and up engines received 9-inch units - as did 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle 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. 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. Now that you have identified the axle code, let us know the axle ratio. Besides the styling of the Ford Edsel, even the axle shafts were very unusual. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. It was not the only axle used, but was by far one of The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. 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 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. The 8.5- and 8.8-inch gears have even found themselves in the independent-carrier-style axles. Mustangs Theres an easy way to tell an 8-inch apart from a 9-inch. Here is a picture of the milling machine cutting new spline teeth after the axle has been cut to length. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Keep in if so is this what you are looking for. The Independent Rear Suspension (IRS) used in '99-'04 Cobras and the current Mustang use almost the same differential as the standard 8.8. No Brake Fluid Coming Out When Bleeding: The Causes and How to Fix, 15 PENSKE Truck Warning Lights: Video Included, Manufacture date of the particular car model (DATE). On this particular third member, the original copper washers that were under the factory fasteners have been discarded as well. Here are the internal sides of the same three units. 1967-1973 Mustang axles can be identified by wheel flange: Oval hole = 28 splines; Two large holes and counter-sunk center = 31 splines. 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. 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. type, 28 and 31 splines, Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle Please follow the below information and/or our measuring guide to help Measuring from axle flange to axle flange (measurement A in the diagram below) will give you total axle housing width. This strengthens the whole rear end assembly. Ford Differential Axle Codes. GM G-body 78-87 Complete 9" Rear End Package. 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. housings appeared in either 1966 or 1967 with the familiar "Hump" Ring and Pinions from Motive Gear The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. There is a gear ratio stamped on the tag. Ford 9-inch axle - Wikipedia "N Find the word AXLE under the bar code. SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. narrowed rear ends due to the added strength in the middle. 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. It allows for the pinion side Center Section to be removed. The trucks varied more, early half ton trucks got the 28-spline axles and Ford used Dont be surprised if the tag you have does not exactly match this. Ford Rear Axle Assembly Identification - Page 01 . The 28-tooth axle shafts are typically tapered and cannot be shortened. The same applies to vehicles with codes containing numbers alone. This includes the Center Case, the Pinion gear, the ring gear, and the differential or spool. The Parts You Need to Build a Bulletproof Ford 9" Rear End The 8-inch also was only available with 28-tooth axle shafts. 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. Axle Size/Strength Chart; Explained Videos; Tech Articles; 9-Inch Ford. Ford Drive Ratios - Gearvendors can tell this is a 9-inch from the removable carrier on the front. more plentiful starting in the early 1970's, many of the units found today These axles even have a unique bolt pattern of five on 5 inches. narrowed rear ends due to the added strength in the middle. This is a relatively common issue on these housings. This is 2.25 inches for the Ford 9-inch and 1.5 inches for the 8.8-inch axle. How To Identify 9 Inch Ford Housings Chart via Speedway Motors. I have a '50 Club Coupe and have experienced this first hand. Enter the required Overall Width, Pinion Offset (location), Brake Space and Drum/Rotor thickness to find axle length and housing width. See all 20 photos. 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. 4. Ranger Station, Submit 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. The leaking weld area is then ground down and a MIG or TIG welder is used for the repair. The Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. The answer lies in several of the Ford 9-inchs design aspects, starting with the Ford 9 inch gears. 54" The format has changed over the years but mostly follow this sequence:. C-6, three-speed, automatic. and this style of center carrier housing is best suited for drag cars or It was also used in the 1983-1996 full-size Bronco, and E150 Econoline . wheel drives) right up until about 1982, these housings are by far the the Broncos from 1966 to 1977, they stayed with the 28-spline units. found in the trucks up to around 1982. 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. 4. 8" ford rear ends. what gears available? | The H.A.M.B. This larger offset (hypoid distance) between ring-gear . Differentials, Axles/Drivelines, Book, Using GoJak Wheel Dollies to Easily Move Your Vehicle, Brake Pad Identification and Friction Surface Options Explained, Adapting Tremec's Popular T5 5-speed Manual to Ford's Flathead V8 Engine, Ford And Chevy Spindle Options For Solid Axle Hot Rods, Small Block and Big Block Chevy Engine Flexplate Guide. Mustang Rear End Gear Ratios & Axle Guide - LMR.com at car swap meets and shows are the units pulled from trucks with the smooth backside. What gear ratio do I have in my GM or Chevrolet - Drivetrain CLICK HERE to see a complete listing of front axle codes). Mismatching issues are a big problem when it comes to automotive repairs. This pinion shows excessive wear on the trunnion surface and should not be re-used. Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? "N Case" was no longer needed for passenger car/truck 77-81 Lincoln Versailles. The tags were replaced with adhesive labels that are placed around the axle tube near the brake and wheel end. carriers both, as well as with the spline count on the axle shafts. There are several reasons for this. This format is also applicableto casting date codes. So, after crawling under just over 50 Cars, trucks etc at the local Upull, I found that a 1995 2wd 2.3 Ranger has the correct length driveshaft at 47.5".chevy truck driveshaft length chart. The middle number is the ring gear diameter in inches, typically an 8 or 9. Mustangs and Fairlanes. The axle housings themselves had many different variations over time as well. No. 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. i.e. Learn more. as the Mustang. 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. (The third digit of the axle code identifies the ratio and/or capacity of the front axle, if applicable. You can do this by multiplying by the gear ratio. 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 1966 Mustang had 14 possible rear gear ratio/differential combinations. as the Mustang. The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to the 3.89 and 4.11. 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. Ford Mustang Rear Gear Ratios | CJ Pony Parts some 302 4V cars with optional gear ratios). Any sufficiently advanced technology is indistinguishable from magic . medianet_versionId = "3111299"; The The last set of numbers is the vehicle plant code. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. Axle code. As part of my research, I went to renowned Currie Enterprises and gathered one of just about every different 9-inch axle variant. Understanding Your Gear Ratio Chart | Red Dot Engineering
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