ford 9 inch rear end gear ratios chart
Some of this information is very important as it is becoming more and more difficult to find documentation on axles and differentials that were built more than 40 years ago. Generally most cars received the small axle bearings and 28-spline axle How To Recognize 9-Inch Housing Now that you have identified the axle code, let us know the axle ratio. Differential Gear Ratio Calculator. of course most desirable is the N case, first used on the 427 Galaxies The Maverick 8" or Ranger 7.5 and 8.8 are good options. tubes with flat tops, 1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 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 axle housings themselves had many different variations over time as well. The rear-end housing has a vast amount of ford 9-inch gear ratios available. Here is a down-and-dirty way of picking the best gearing for a particular car from three choices: 3.07:1 final drive with a wide-ratio transmission, a 3.07:1 final drive with a close-ratio transmission, and a 3.36:1 final drive with a close-ratio transmission. The date code is stamped on the tag. Are reviews modified or monitored before being published? same width, but the distance between spring perches is different between It allows for the pinion side Center Section to be removed. It can also help in identifying the axle ratio of your particular vehicle. The 10,41 gear ratio is also great for off-road activities . 2. more plentiful starting in the early 1970's, many of the units found today Some even consider these axles to be bulletproof. 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!. You bring the gumption. A forum community dedicated to Ford performance owners and enthusiasts. Ford 9.5 PRO GEAR* *PRO GEAR RATIO PART NO. Our expert customer support technicians are available Monday through Friday from 7:00 a.m. until 7:00 p.m., CST. control arm mount. Ford personnel and/or dealership personnel cannot modify or remove reviews. Ford Rear Axle Assembly Identification - Page 09: NOTE: Axle tag location and appearance may vary by application. The 8.5- and 8.8-inch gears have even found themselves in the independent-carrier-style axles. It was also used in the 1983-1996 full-size Bronco, and E150 Econoline . Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. 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. The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. Also note there isn't a cover on the rear like most axles. Gear Ratios - RPM from Speed, Rear & Trans. dimples. 1967-1973 Mustang axles can be identified by wheel flange: Oval hole = 28 splines; Two large holes and counter-sunk center = 31 splines. It also has a 9-inch ring gear. You will need to get your hands on your manufacturers axle code chart for this part. This video is a good example of what goes into the process . Thanks. station wagons-cars with 351 and up engines received 9-inch units - as did trucks varied more, early half ton trucks got the 28-spline axles and You are correct sir, these are the standard ratios for 65-66. For example, Ford says the 2018 F-350 Super Duty 4x2 regular cab pickup equipped with the 6.2-liter . for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes These variations include different-size drum brakes, disc brakes, and wheel hub arrangements. If the case has two verticle RIBS ,from top to * Pro Gears are specifically designed for drag race only. 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 Ford 9-inch has a reputation as a durable axle that can transmit enormous torque, and this is rightfully deserved. On some tags, the first 2 digits don't appear on the tag, but they must be used to identify the axle. Later It has a square design with four rounded corners and ten bolts. 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 . housings also evolved over the years: The Most have the two driving holes for the manufacturing process while one has a more square looking drive end. 31-spline carriers and "Traction Loc" style posi unit. Gross Vehicle Weight ( GVW ) would Note the ring diameter cast into the housing above the pinion. Note the weld on the top of the axle center section along with the oval-shaped dimples on the rear section. GM Chevy S10 82-04 Complete 9" Rear End Package. How do I find the Axle Ratio and Limited Slip? It was then replaced by the Ford 8.8 inch rear axle. Note the two lower bolts at 6 and 7 oclock have straight access with a socket. The "rough" and this style of center carrier housing is best suited for drag cars or The first table is the code and gear ratio. 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. Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. Pairing your vehicle with the wrong axle components will not only damage your vehicle but cost you a lot down the line. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) Because All of the 8-inch case nuts can be accessed with a socket. The original carrier is normally equipped with a CV joint flange, which can be replaced with a U . 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. 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 . Our Mopar flexplate buyers guide will help. This not easily accomplished with integral carrier axles, like the GM 10- and 12-bolt. If measuring the drum-to-drum distance, add .200-inch to these values. This is a major advantage compared to other rear axle systems because disassembly is faster and more convenient. 2.75 open differential. This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. Our experts will help you find the correct ring and pinion set for your particular application. Rearend/Axle Length Calculator. This will ensure that the correct replacement parts are purchased or salvaged from a junkyard to be used in the vehicle. weakest and had abrupt ending but welded carrier centers to tubes and a All the Galaxies I have seen from throughout the 1960s diameter bolt circle, 1967-1973 Torinos, Rancheros, Fairlanes 59.25 inches or 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. around 64-65 I believe.They are most often found behind the later 428CJ There are three versions with external Ns cast in; note the more curved style on the top right. Any sufficiently advanced technology is indistinguishable from magic . wood and natural gas. 1/2 in Ring Gear Bolts: WCN-B: Ford Pass '63-64: 3.50: 9 in: NL4-1/2 in Ring Gear Bolts . Traditional BOM's are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. The case differences, 28-spline car axle shafts are much more abundant than the Let's see, I have had 2.79. Since 2011, V6 and V8 Mustangs have used Ford's 8.8" rear end, but before that many used a 7.5" rear. 31-spline axles and carriers for most trucks. by the size of the nuts and thread used to retain the brake backing plates The the early housings are ok for the average street performance cars. The Lincoln LS and Jaguar S-type were equipped with an 8-inch, castaluminum, independent- style carrier. 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. Filed Under: Ford Tech Tips, Rebuild Ford Differentials, The Best Ford Tech Articles, 2023 DiY Ford. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. Real World Hagerty Collector Car Insurance Claim Experience, How To Be Prepared For A Dyno Session And Not Waste Your Money, Holey Goat Father/Son Texas Road Trip 5 Days, and 2000+ Miles, Are You Killing The Hot Rod Community? Proceed to match the code with its corresponding Axle Ratio column on the table to find the ratio. 6. The 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. small bearing housing can be differentiated from a large bearing housing Its called a 9 inch because the ring gear measures 9 inches. earlier housings used in cars from 1957 to mid 1960s tended to be the Hoonigan Founder and Pro Rally Driver Ken Block Dead at 55, Worlds MOST Unusual Cars Ever Made, Found In One Warehouse, Lower the Bar ~ Perfectionism is Ruining the Automotive Hobby, 1971 GMC COE Fire Truck to Ramp Truck Car Hauler Build, Roadkills Best (and Worst) Drag Strip Tests, How To Choose the Correct Drag Racing Tire, 25 Tools and Gift Ideas Under $15 From Harbor Freight You Need, The Myths And Realities Of Carburetor Sizing, The Inaugural No Name Nationals Drag Race & Burnout Contest Coverage, Lawn Mower Racing ~ The Worlds CHEAPEST Motorsport, Quick and Easy DIY Headliner for Less Than $20, 1928 Ford Model A Coupe Goes From Yard Art To Driver, How To Turn Railroad Track into a DIY Homemade Anvil, New Docu-Series from Rat Rod Magazine ~ American Rust, Finishing a Late Friends Handmade 1956 Baby Buick Special Mini Car, Best 3-Ton Floor Jack? There are also unique domestic special-option tags, which dont follow the format. by Ford exist in the size of the outer axle bearings in the housings and *** SELECT GEAR RATIO FOR PRICE *** Categories. This is a typical axle tag that has been removed from the third member. I'm not responsible for incorrect information, Width: all measurements are flange to flange, Ford Rear Axle Assembly Identification - Page 01 - FORDification.com. used the 9-inch rear, regardless of engine size. The The center section is the differential assembly. Your email address will not be published. Give us a call at 800-216-1632 to get started. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing. Ford non-overdrive transmissions include: C-4, three-speed, automatic. also received the larger axle bearings housings. The last set of digits on the top row on the right side is the date code. 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle 100 x 4.12. What Is Car Battery Voltage And Why Is It Important? It applications due to the demise of most performance engine options in the Read this first! 8300 N. Austin Ave Morton Grove, IL 60053 Trust Speedway Motors for best-in-class parts for Ford 9 Inch - delivered quickly, efficiently and without any hassles. In 1963, Ford includedmore information. 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. 1957 . 67-73 medium and big block Mustangs and Cougars. with 3/8" fine thread, while the larger bearing use 11/16" The Ford 9 inch housing is a semi-floating, drop-out axle. The last set of numbers is the vehicle plant code. We provide how-to and technical articles, vehicle and build features and examples, plus calculators and lookups that will help you get your ride from dream to driver. . 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. The 8.8" rear end is flat on the top and the bottom as well as the left and right. Gears / Diffs / Install Kits Listed By Vehicle, Standard Gears & Pro Gears Dana / Ford / GM / Mopar, Strange T-Shirts. The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. 4.09 Front, 4.11 Rear Ratio Differential Ring and Pinon Front and Rear Complete Kit for 8.5 Front (Inch), 9 Rear (Inch) (10 Front, Dropout Rear) . Along with the many different brake and wheel end varieties, many different styles of axle shaft ends were manufactured. 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. This is because the supply is limited to It is as easy to cut down as any other 8 or 9 inch Ford axel. The WAR, WAA, and WAB cases have the same ribbing as the N case, but are missing the ever important N feature. weakest and had abrupt ending but welded carrier centers to tubes and a Axle Size/Strength Chart; Explained Videos; Tech Articles; 9-Inch Ford. 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. With the chart in hand, locate your vehicles axle code on the axle code column. If you liked this article you will LOVE the full book. Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the The smaller 8-inch just cannot handle the abuse as its bigger brother can. 28 spline axles are tapered and cannot be shortened and re-splined. The rear-end housing has a vast amount of ford 9-inch gear ratios available. On this particular third member, the original copper washers that were under the factory fasteners have been discarded as well. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. them. larger wheel bearing housings. The cast-iron third member is installed from the front of the housing. These have a C4AW-4025-B casting part number next to the adjuster nut. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. 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. Many people prefer to just call it the Ford 9-inch-style wheel end. 1-wire alternators are perfect for engine swaps or just keeping things simple for your project. widths I keep in mind for Mustangs are the following: This strengthens the whole rear end assembly. A most abundant. The information on the plate includes: The purpose of the axle code is to help identify the specifics of a particular vehicles rear-end axle. Note: Rear axle ratios are available for 2008 and newer models. There are three bearings on the pinion shaft: the two traditional tapered roller bearings for the head and tail bearings with a third cylindrical roller bearing on the opposite end of the pinion head. 31-spline carriers and "Traction Loc" style posi unit. 1967-1973 Mustang, Torino, Ranchero, Fairlane 9-inch Ford differential tags are very . version of the case came into use in 1967 or in subsequent years, but it The Ford 9-inch is the most desirable drag racing rear end because it has a removable carrier, which allows quick rear end changes. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . 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. Of course, if your budget allows, you can purchase an aftermarket iron case that is stronger than any factory case. 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.