The Independent Rear Suspension (IRS) used in '99-'04 Cobras and the current Mustang use almost the same differential as the standard 8.8. Install Kits and Gears Sets Listed By Rear End. Ford 8.8-Inch Rear Axle History & Specs - The Ranger Station Factory Original Gear Ratio | Vintage Mustang Forums This is by far the most common axle used by restorers, hot rodders, customizers, and racers. for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes earlier housings used in cars from 1957 to mid 1960s tended to be the Ford 8.8 axle - Wikipedia Therefore, these axle assemblies require better quality oil and good underbody airflow to keep the unit cool. Ford 9-inch axle - Wikipedia GM A-Body Complete 9" Rear End Packages. in cars and trucks. 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. of course most desirable is the N case, first used on the 427 Galaxies . 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. If your vehicle has a Limited Slip Differential, it will be noted as Limited Slip. control arm mount. 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. The material and heat treating provide excellent wear service life, but doesn't handle shock loads as well as Pro 9 in gears. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. narrowed rear ends due to the added strength in the middle. A strong 9" with a nodular diff and 31 spline axles is fairly comparable in strength to a stock Dana 60 rear end. The most A simple formula to calculate Gear Ratio or Axle Ratios. In most cases, the tag has been lost. As you proceed to the Ford Axle Code chart, you will notice that the table indicates it has a Ford 8.8 Limited Slip Differential with an Axle Ratio of 3.55. Some axle shafts can be shortened and a new spline machined in place. Have There are even different pinion cartridges that have been available from the various production years and models for this axle. Axle 31-spline carriers and "Traction Loc" style posi unit. 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. and trucks throughout the 1970s. 4. Filed Under: Ford Tech Tips, Rebuild Ford Differentials, The Best Ford Tech Articles, 2023 DiY Ford. Application Ring Gear And Pinion NL or L Axle Shaft Splines Additional Information; Ratio: Diameter of RG: WBG-E : Ford Truck '63-71 F100: 3.70: 9 in: NL: 28-WBG-F : Ford Truck '63-71 F100: 3.89: 9 in . What Is Rear End Gear Ratio and How Is It Calculated? - Gear Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner! Theres an easy way to tell an 8-inch apart from a 9-inch. Written by Joe Palazzolo and Republished with Permission of CarTech Inc. There may be other labels attached to that pillar so pay attention to one that looks similar to the one below. 289 Hipo cars.The N cases went with 31 spline centers and are for rugged (See Chapter 8 for how to install a 9-inch in a classic 1957 Chevy Bel Air as a performance upgrade.). some 302 4V cars with optional gear ratios). only need to carry one spare should you choose to. the axle from around the 1957 model year right up until the early 1980s When it comes down to actual shafts as well, since the truck lug Besides the styling of the Ford Edsel, even the axle shafts were very unusual. * Pro Gears are specifically designed for drag race only. Chevy differentials: how to rebuild the 10- and 12 . Ford 8 Ford 9: CLICK FOR MORE INFO. This is an example of the only Ford 9-inch version that utilized one-piece tubes. them. The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. 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. 74-75 medium duty large bearing, and. wood and natural gas. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) The last set of numbers is the vehicle plant code. more plentiful starting in the early 1970's, many of the units found today The bottom line begins with the ratio being the first set of numbers. 1. On this particular third member, the original copper washers that were under the factory fasteners have been discarded as well. These used what is referred to as a 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. can easily tell this is a 9-inch from the hump in the rear and (2) allow larger ring gear to fit. 70's. at car swap meets and shows are the units pulled from trucks with the Trust Speedway Motors for best-in-class parts for Ford 9 Inch - delivered quickly, efficiently and without any hassles. 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. in cars and trucks. 13 lovely chevy 10 bolt rear end gear ratio chart. We will look at what axle codes are and how to identify the axle ratio from the code. Check it out. The larger offset is better for strength and noise but worse for sliding and efficiency. Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . The 9-inch housing's center section will not allow the socket to clear, and . GM F-Body Complete 9" Rear End Packages. Differential Gear Ratio to Tire Size Guide - | No road, no problem. 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: This strengthens the whole rear end assembly. The 8-inch also was only available with 28-tooth axle shafts. Dec 1, 2011. The * Pro Gears are specifically designed for drag race only. Measuring for your 9-inch axles requires a few basic measurements to be taken. 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. 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. 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. Our expert customer support technicians are available Monday through Friday from 7:00 a.m. until 7:00 p.m., CST. and this style of center carrier housing is best suited for drag cars or Variations 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!. We stand behind our products with some of the smartest technicians in the industry. most abundant. The leaking weld area is then ground down and a MIG or TIG welder is used for the repair. I put together a whole collection of housings and third members. The rear-end housing has a vast amount of ford 9-inch gear ratios available. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. Exclusive 9" Gear Ratios - Quick Performance Most of the later trucks These axles even have a unique bolt pattern of five on 5 inches. There are even different drum brake registers. There are four versions of the nodular iron third members that were produced from the factory. It has more ground clearance than a Dana 60. The 8.5- and 8.8-inch gears have even found themselves in the independent-carrier-style axles. Dont Be That Guy, Reversing Gears ~ Rescuing Ones Own Derelict 1967 Pontiac GTO, How To Paint a Lace Roof on the Cheap Using Grandmas Curtains, Exploring an Antique Junkyard in the Hills of West Virginia, Engine, Transmission, Chassis Swap Donor Vehicle Look-Up, How To Box-In a Differential / Solid Axle Rear-End Housing, How To Select Proper Rear-End / Differential Gear Ratio, Install Bolt-On Disc Brake Conversion Kit on 8 and 9 Ford Rear-Ends, 1966 Ford Fairlane 427 Twin Turbo Street/Strip RestoMod Build, How To Repair a Twisted Cable End with a Simple Homemade Tool, 1928 Ford Model A Roadster Build by OL School Garage, Engine / Transmission / Chassis Donor Search, Project Cars and Part Donor Cars For Sale. You can do this by multiplying by the gear ratio. Both axles share a common design and are often referred to as banjo style or third-member style. This chart references the connection between the month codes and the actual month. Ford rear ends, or differentials, were manufactured by either the Dana Corporation or Ford. Our editors pick the products & services we write about. Notice that the date code is C9UA with the ring gear size of 8.7. 28 spline axles are tapered and cannot be shortened and re-splined. Mustangs Most of the later trucks station wagons-cars with 351 and up engines received 9-inch units - as did The additional straddle mount pocket bearing provides additional support to the pinion head during high-torque events. These variations include different-size drum brakes, disc brakes, and wheel hub arrangements. Find the two-digit code under AXLE. About | Contact | Terms | Privacy. Read more: Torsion Axle Vs. The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. Most have the two driving holes for the manufacturing process while one has a more square looking drive end. 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. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . some 302 4V cars with optional gear ratios). Richmond Tech Support. Traditional BOM's are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. (final drop). 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. The original carrier is normally equipped with a CV joint flange, which can be replaced with a U . determine which axle housing many cars and trucks received. 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. Once you have identified the label, locate the word AXLE under the bar code section. . Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle 52" The Ford 8.8-inch axle has the same ring gear mounting distance (see Chapter 7) for all ratios, just like the 9-inch. 31-spline car shafts. The case 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. C-6, three-speed, automatic. Produced from 1957 to 1987 by the Ford Motor Company, it was used in full size . Please follow the below information and/or our measuring guide to help Click on the 'Submit' button to find out how you Then take that answer and divide it by 100% and then multiply it by itself to find out what gears/axles you need to run to achieve the desired tire size. The 31-spline carriers and "Traction Loc" style posi unit. For instance, if both the engine and transmission deliver up to 100 ft./lbs. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) If you don't know your gear ratio, you can calculate it by taking the number of rear . housings also evolved over the years: popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. These tags provided information for the service technicians but wasnt that important for the vehicle assembly plants. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. Fords 9 inch rear axle was produced from 1957 through 1986 and was installed in nearly every Ford passenger car and truck at one time or another. as the Mustang. "N Case" was no longer needed for passenger car/truck