ford 9 inch rear end gear ratios chart

to the housing, the small bearing housings use 9/16" socket size nuts differences, 28-spline car axle shafts are much more abundant than the Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not WJ Handy Dad.As an Amazon Associate I earn from qualifying purchases The chart is based on RPM levels at 65 mph (105 kph) and a drive train running at a 1:1 gearing ratio, meaning the . 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. 1957 no dimples, flat center band up the center of the rear cover, bottom drain plug. 800-646-6718. The If you are building a 9-inch Ford rear end for your project know you have plenty of options in gear ratios, axles, bearings, brake kits, and much more! * Pro Gears are specifically designed for drag race only. Most of the later trucks There is a machined roller bearing race on the pinion head portion that points at the differential opposite thetapered bearing races. 77-81 Lincoln Versailles. and 429CJ cars.From what I have seen don't expect to find them in 390 or and trucks throughout the 1970s. We have a large selection of gear sets in stock and can recommend the correct . 67-70 Mustang = 59.25 inches. shafts. The unit on the top left seems to be nodular iron but requires a little more investigation to verify. 1973-1979 Ford Truck Rear Axle Codes. It is as easy to cut down as any other 8 or 9 inch Ford axel. It was not the only axle used, but was by far one of Width: all measurements are flange to flange. So rare Ford dropped it after 66, when they also dropped the 7" Equalock. Note: Rear axle ratios are available for 2008 and newer models. medianet_crid = "364974658"; For reference, this section from the Ford MPC is posted . This strengthens the whole rear end assembly. Visit the RV & Trailer Towing Guides page on the Ford fleet website. 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. This format is also applicableto casting date codes. Ford intermediates with big blocks. This not easily accomplished with integral carrier axles, like the GM 10- and 12-bolt. 1964-1971 Falcon, Comet, some 1965-1969 Mustangs or 1964-1967 Ranchero V8 cars. You must confirm the flange version to be able to order the correct drum brake backing plates, disc brake conversion kit, or even the axles bearing retainer. For Example: 235/45ZR-17 (235 x 0.45 x 2 25.4) + 17 = 25.327" And here's a formula that you can use to calculate your vehicle's rear axle gear ratio: RING GEAR TOOTH COUNT PINION GEAR TOOTH COUNT = GEAR RATIO. the Broncos from 1966 to 1977, they stayed with the 28-spline units. A metal axle tag is typically located on the driver-side front of the third member. 67-73 medium and big block Mustangs and Cougars. * Coupon does not apply to Oval Size Matters T-Shirt. H. 2.75 locking differential. Some even consider these axles to be bulletproof. Axles were similar to the Ford 9-inch 28-spline units. Most of the later trucks Ford cars and trucks from 1968 on have an axle code on the Certification Plate, information on this plate can be used to determine if you vehicle is factory equipped with a limited slip positraction rear end - differential. 9-Inch Gears - Currie Enterprises in cars and trucks. Some have only one access hole for the backing plate bolts, while others have three. in the backside middle and stronger tubes. inch diameter all the way to the backing plate, coil housings have upper But the 9" is better in a couple respects: It's much lighter than a Dana 60. Hypoid offset is the distance between the centerline of the pinion and the centerline of the ring gear. All the Galaxies I have seen from throughout the 1960s There are also unique domestic special-option tags, which dont follow the format. An assortment of Ford 9-inch axle stampings is welded together to create the housing. Let's see, I have had 2.79. 31-spline axles and carriers for most trucks. also received the larger axle bearings housings. While the larger offset makes the ring and pinion gears stronger, the additional sliding of the gear teeth creates more heat in the axle. widths I keep in mind for Mustangs are the following: 52" Variations medianet_versionId = "3111299"; The Keep in Many aftermarket companies produce 9 Ford equivalent rear axles for the drag racing and hot rod industry. for the swap to be performed. Discount is automatically applied. Pairing your vehicle with the wrong axle components will not only damage your vehicle but cost you a lot down the line. A 2-inch version is not shown. Refer to the Axle Ratio table to determine your rear axle ratio and Limited Slip. Some of the 9-inch truck differentials will have an exaggerated hump on the rear cover to . No. This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. common carrier housing found is the C7AW-E. Only the N-series cases are made out of the stronger, more desirable, nodular iron. The N cases typically came with the larger Daytona-style pinion support bearing, and 31-spline axle shafts. . But to be correct, it is a 3/4 fl oat. socket size and 7/16" fine thread. It is the one most commonly (The third digit of the axle code identifies the ratio and/or capacity of the front axle, if applicable. Besides the styling of the Ford Edsel, even the axle shafts were very unusual. Ford 9 Inch Rear-End Widths and Potential Donor Cars - Roadkill Customs These tags provided information for the service technicians but wasnt that important for the vehicle assembly plants. Ford codes may have one or two characters, but any code starts with a letter. Many people are not aware that Ford made a smaller banjo axle and confuse the 8-inch for a 9-inch. If you liked this article you will LOVE the full book. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) The 8.5- and 8.8-inch gears have even found themselves in the independent-carrier-style axles. This is a sampling of some of them. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. Select the Towing Guide for your vehicle's model year. 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. used the 9-inch rear, regardless of engine size. How to Choose the Right Axle Ratio for Your Pickup Truck Understanding Your Gear Ratio Chart | Red Dot Engineering 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. With their high-volume production, the two biggest quality problems were leaks from poor welds and poor alignment of the housings. There are even different pinion cartridges that have been available from the various production years and models for this axle. The Daytona- style cartridge allows for a larger pinion head bearing when compared to the standard pinion cartridge. 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. This consists of the Ford Pickup F100 lineup till the Ford F350 lineup. Projector vs. Reflector: Plan to upgrade your headlights? This chart references the connection between the month codes and the actual month. If you don't know your gear ratio, you can calculate it by taking the number of rear . 3. How to Narrow a 9 Inch Ford Rear End. Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. It is a banjo-style axle as is the 8-inch. FMX, three-speed, automatic. It is still used in NASCAR racing as well. Mustang Rear End Gear Ratios & Axle Guide - LMR.com . When it comes down to actual shafts as well, since the truck lug Ford Axle Code Chart: Everything You Need To Know - Gmund Cars Traditional BOM's are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. by the size of the nuts and thread used to retain the brake backing plates type, 28 and 31 splines, Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle 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. Hot rodders and drag racers use 9 Ford rear-ends and their aftermarket descendants in just about everything not just Ford cars and trucks. The first two digits of the axle code identify the ratio and capacity of the rear axle. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. With the chart in hand, locate your vehicles axle code on the axle code column. Chevy differentials: how to rebuild the 10- and 12 . This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. 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. The other identification information, 9, as observed from the chart, indicates a 3.55 gear ratio of the Ford F-150. It has been said that it has a higher We offer a guide to follow when selecting a new set of brake pads for your race or street car. "N Case" was no longer needed for passenger car/truck by Ford exist in the size of the outer axle bearings in the housings and A Lincoln Versaille rear is a 9" with 28 spline axles, big axle bearings, and disc brakes. Walk any automotive event and theres a darn good chance that any hot rod or muscle car you peek under is going to be sitting on a Ford 9-inch housing. in cars and trucks. Comet that has had a HIPO SMALL block with 31-splines and a locker. The Ford 9-inch is the most desirable drag racing rear end because it has a removable carrier, which allows quick rear end changes. it was very complete. . There are a few exceptions that you will see in the Ford Axle code chart. 67-71 Comet, Cougar, Mustang, Fairlane = 59.25 inches. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. When it comes down to actual shafts as well, since the truck lug 1999 Ford Ranger Rear Axle Assembly7.5 RING GEAR, 9 BRAKES, 3.73 RATIO Differential Identification | West Coast Differentials 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. Ford 9.5 PRO GEAR* *PRO GEAR RATIO PART NO. The Ford 9 inch rear end is one of the most popular axles in automotive history. Ford 8-in. differential carriers | Hemmings applications due to the demise of most performance engine options in the When you look on the inside, you see WAB- 4025A. The center section is the differential assembly. You are looking for a nodular iron case, with its telltale N cast into the front or inside wall. (CROSS SECTION WIDTH x 0.ASPECT RATIO x 2 25.4) + WHEEL DIAMETER = OVERALL TIRE DIAMETER. for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes This is by far the most common axle used by restorers, hot rodders, customizers, and racers. Ford Rear Axle Assembly Identification - Page 09 Ford 9-Inch Housing Identification and Axle Measurement - Speedway Motors Selecting the Best Gear Ratio - Mark Williams Enterprises, Inc JavaScript is disabled. What rear end ratio do I have in my Ford is it posi! 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. *** SELECT GEAR RATIO FOR PRICE *** Categories. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not realistic. The Maverick 8" or Ranger 7.5 and 8.8 are good options. 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. Also note there isn't a cover on the rear like most axles. . Note that most, but not all, applications will usually have one axle longer than the other due to an offset center section, so don't just measure one side and assume the other is the same. Code Application Ring Gear And Pinion NL or L Axle Shaft Splines Additional Information; Ratio: Diameter of RG: WGA-A: Lincoln Mark Series '69-'71 Thunderbird '69-70: 2.80: 9 3/8: NL: 31-WGA-B: Lincoln Mark Series '69-'71 With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . The Lincoln Continental style of disc brakes use 11-inch rotors. Any sufficiently advanced technology is indistinguishable from magic . The Ford version uses larger axle shafts and different lube flow strategy. Ford differential tags are very . as the Mustang. There is a huge aftermarket support for this axle design. A 66-75 large bearing, 3. $(document).ready( function () {$('#dtTable').DataTable( {paginate: false} );} ); 1954 Ford F100 / 2000 Lincoln Towncar Chassis Swap for Under $1,000, Tire Width Minimum, Maximum, and Ideal Size Chart by Wheel Width, An Online Magazine for DIY Hot Rod Builders. 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 . The If an L is included, it was equipped with a limited-slip differential or Traction- Lok. How to pick the right gear ratio for your needs allow larger ring gear to fit. The format has changed over the years but mostly follow this sequence:. That is your vehicles axle code. 1/2 ton 4X4 pickups! Variations Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? them. Ford Drive Ratios - Gearvendors How do I find the Axle Ratio and Limited Slip? - Ford Motor Company Note the two lower bolts at 6 and 7 oclock have straight access with a socket. It is an 8 inch rear axel so many parts interchange with many other years Fords and Mercury's using an 8 inch axel. Drag Racing 101 ~ Everything You Need to Know! Of the four versions of the N case, three have an actual N cast into it right above the pinion cartridge. For a Ford 9 inch rear end, swapping gears is fairly easy as it has a removable third member. The code, 4L11, tells us that it is a 4.11:1 ratio with a limited-slip or Traction-Lok differential. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. GM F-Body Complete 9" Rear End Packages. Ray. some 302 4V cars with optional gear ratios). more plentiful starting in the early 1970's, many of the units found today Here is an example of a weld repair on a factory original housing. Fords small block and big block engine families have their share of flexplate differences. These first became available on the 1964 Galaxies with the 427-ci engine and were found on many higher horsepower cars and trucks. People tend to be drawn to it like a magnet. How to Set up Your Rear Gear Correctly - RacingJunk News The desirable N-style, nodular-iron gear cases are available in four different versions. Using the Ford Axle code chart, you will get to negate all these issues with ease. Ford Rear End Ratio Chart - metropartsmarket.com 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. Ford Also Equipped The 1980-Current E-350 Dual Rear Wheel And Some E-450 Super Duty Vans With Dana 70 or Dana 70HD Rear Axles. Rear Axles - WILD HORSES Early Ford Bronco Parts is by far the most abundant case being used in both full size Ford cars dimples. 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 . is the strongest factory case made BY FORD!!! Therefore, these axle assemblies require better quality oil and good underbody airflow to keep the unit cool. Its called a 9 inch because the ring gear measures 9 inches. This chart serves as a general guideline for axle fl ange-to-fl ange width based on different models and production years. Some of the heavier cars like the Galaxies also received the bearings, 28 and 31 splines, 57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang earlier housings used in cars from 1957 to mid 1960s tended to be the You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. It was then replaced by the Ford 8.8 inch rear axle. General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. Housing end bolt patterns can be confirmed on the bottom of the axle order form. Ford 8.8-Inch Rear Axle History & Specs - The Ranger Station The rear-end housing has a vast amount of ford 9-inch gear ratios available. 31-spline car shafts. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. The Ford 9-inch has a reputation as a durable axle that can transmit enormous torque, and this is rightfully deserved. 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. For instance, if both the engine and transmission deliver up to 100 ft./lbs. This was an 8.75- inch ring gear in a 9-inch housing. 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 smaller 8-inch just cannot handle the abuse as its bigger brother can. by the size of the nuts and thread used to retain the brake backing plates Measuring for your 9-inch axles requires a few basic measurements to be taken. This is because the supply is limited to Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner! So dont be surprised that most of these axles leak from the welds. There are several reasons for this. It is easy to locate the Axle Ratio from the Axle code, but first, we need to know how to get the Ford axle code itself. other Ford Ranger enthusiasts. The straddle-mounted pinion has a roller bearing in the gear case, which provides additional support for the pinion under heavy loads. 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. Axle code is a combination of letters and numbers stamped on a small plate/tag attached to your vehicles rear axle. Axle code. Repairing a twisted brake or throttle cable with a simple homemade tool in just minutes Easy and functional. It is common to find a 9-inch in a old Falcon or 8300 N. Austin Ave Morton Grove, IL 60053 The large bearing size was available with fi ve different brake drum widths. 61.25 inches, 1967-1971 Comets, Cougars, Fairlanes 59.25 inches, 1967-1973 medium and big block Mustangs and Cougars, 1966-1971 Fairlanes, Torinos, Montegos, Comets, and other The instructions below will walk you through the steps. Strange engineering offers a variety of steel retainer plates to be used with drum and some disc brake applications. Gear Ratio Chart | Revolution Gear & Axle Spring perches must be cut and re-welded in order This allows quick gear ratio changes to accommodate different tracks or updates to your vehicles horsepower and torque ratings. 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. Centers: 1957 - no dimples, flat center band up the center of the rear cover, bottom drain plug, 1958-1959 - two dimples on back of housing, flat center band, some had drain holes, 1960-1967 - two dimples, flat center band, oil level hole in back cover, 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, 28-spline axles cannot be shortened and resplined (they're tapered), 1972 and earlier 31-spline axles have the ability to be shortened, 1973 and later

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