Note: Rear axle ratios are available for 2008 and newer models. But to be correct, it is a 3/4 fl oat. housings also evolved over the years: Give us a call at 800-216-1632 to get started. housings appeared in either 1966 or 1967 with the familiar "Hump" pattern in most cases differed from the car, and due to the bearing size Generally, aftermarket shafts have to be purchased The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to the 3.89 and 4.11. How To Recognize 9-Inch Housing 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. . 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. determine which axle housing many cars and trucks received. Discount is automatically applied. Mustangs Once you have identified the label, locate the word AXLE under the bar code section. 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. The "rough" But it will also use more fuel in all situations because the engine's rpm will be higher. Notice the 8.0-inch ring gear diameter cast into the rear cover below the fill plug. and this style of center carrier housing is best suited for drag cars or The 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. 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. You will need to get your hands on your manufacturers axle code chart for this part. This bearing and the casting structure surrounding it need to be carefully inspected as this is a common area for cracks. This is a relatively common issue on these housings. medianet_versionId = "3111299"; The The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. wheel drives) right up until about 1982, these housings are by far the With the pinion gear and differential in place, rear-end marking compound in place, and with the bearings only "snug" (just tight enough to eliminate any "play"), check the pinion depth by way of the contact pattern that can be found by the rotation of the pinion against the ring gear. The What rear end ratio do I have in my Ford is it posi! Hypoid offset is the distance between the centerline of the pinion and the centerline of the ring gear. 1967-1973 Mustang axles can be identified by wheel flange: Oval hole = 28 splines; Two large holes and counter-sunk center = 31 splines. diameter bolt circle, 1967-1973 Torinos, Rancheros, Fairlanes 59.25 inches or It is still used in NASCAR racing as well. * Pro Gears are specifically designed for drag race only. Gear Ratios, Limited Slip and Your Mustang's Rear End Axle length is not always identical from side to side, as many 9-inch applications use an offset center, so you must measure the housing carefully to be able to order the proper axles. There are 8.5-inch gears installed in these housings for lowerpower vehicle applications. 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. 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The Variations Using this data, hopefully you can decide whether you want a 2.73, 3.08, 3.27, 3.55, 3.73, 4.10, or some other gear in your car. When narrowing a Ford 9 inch rear end, the first step is determining the overall length you need. Any sufficiently advanced technology is indistinguishable from magic . 6. trucks varied more, early half ton trucks got the 28-spline axles and 70's. 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. the few cars and early Broncos (and some early trucks) which received Ford 9-Inch Housing Identification and Axle Measurement - Speedway Motors to the housing, the small bearing housings use 9/16" socket size nuts You can use the social sharing buttons to the left, or copy and paste the website link: https://www.diyford.com/ford-axle-history-identification-ford-differentials/. at car swap meets and shows are the units pulled from trucks with the That is your vehicles axle code. Axle Ratio : Axle Ratio : Diesel: 5.13: 4.10: 3.55: Gas: 4.10: 3.55 : Trans Ratio: . The bottom line begins with the ratio being the first set of numbers. Details: Motive Gear . 800-646-6718. The code, 4L11, tells us that it is a 4.11:1 ratio with a limited-slip or Traction-Lok differential. Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. These used what is referred to as a Find the two-digit code under AXLE. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) Because as the Mustang. 289 Hipo cars.The N cases went with 31 spline centers and are for rugged 67-73 medium and big block Mustangs and Cougars. at car swap meets and shows are the units pulled from trucks with the smooth backside. The Ford 9-inch has a reputation as a durable axle that can transmit enormous torque, and this is rightfully deserved. larger wheel bearing housings. JavaScript is disabled. It may seem strange to begin by comparing the 8-inch to the 9-inch axle, but there is an important distinction to make since the 8-inch axle is weaker than the 9-inch. Here are the internal sides of the same three units. The repair process requires the axle to be disassembled and thoroughly cleaned. to the housing, the small bearing housings use 9/16" socket size nuts For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio. Ford 9 Inch Rear End & Axle Information | JEGS Calculating the torque multiplication that your axle gears provide is quite easy. 31-spline carriers and "Traction Loc" style posi unit. A strong 9" with a nodular diff and 31 spline axles is fairly comparable in strength to a stock Dana 60 rear end. Here is an example of a weld repair on a factory original housing. duty.And believe it or not, they were also used in some FE equipped Ford How to pick the right gear ratio for your needs Axle The center section is the differential assembly. Ford Aerostar: The 8.8-Inch axle . for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. Call 800.979.0122, 7am-10pm, everyday. Gear Ratio and Tire Size Chart | HowStuffWorks Before you embark on the rebuild and start scouring local scrap yards and online websites, it will be helpful to understand what to look for and what to avoid in these axles. The 9-inchs very large pinion offset of 2.25 inches requires the pinion to be straddle mounted, which refers to the fact the pinion head has bearings that straddle it on either side. The Ford version uses larger axle shafts and different lube flow strategy. The image below shows the Safety Label of a Ford Truck. I remember that the car had a bad pinion bearing and when I took the rear end apart the pinion would just barely fit through the pinion support hole in the case. It may not be a stock or original Ford 9 inch rear end, but it carries the originals dimensions and specs and for all intents and purposes they are still considered a Ford 9 inch. Guide To Ford Truck & SUV Axles - Blue Oval Trucks Amateur restorer. Ford Differential Axle Codes. Check it out. the best. These tags were not that informativeon the early units, so from 1957 to 1962 the tag just referenced axle ratio. Content. Ford personnel and/or dealership personnel cannot modify or remove reviews. Later replaced, and that is why it remained in use for so long. 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. WJ Handy Dad assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. The 8.5- and 8.8-inch gears have even found themselves in the independent-carrier-style axles. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? Another bonus is that the axleshafts are of equal length, so youll Our Mopar flexplate buyers guide will help. 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 . A Ford rear ends, or differentials, were manufactured by either the Dana Corporation or Ford. Handy Ford 9 Inch Ratio Chart | 460 Ford Forum Axle code is a combination of letters and numbers stamped on a small plate/tag attached to your vehicles rear axle. . Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale, 1967-1970 Mustang, Fairlane, Comet, Cougar, 1967-1971 Comet, Cougar, Mustang, Fairlane, 1967-1973 Mustang, Torino, Ranchero, Fairlane, 1967-1973 medium and big block Mustang and Cougar, 1966-1971 Fairlane, Torino, Montego, Comet, and other Fords with big-block engines, 1977-1981 Lincoln Versailles and Trucks . You are correct sir, these are the standard ratios for 65-66. The 9-inch housing's center section will not allow the socket to clear, and . This combined with easy assembly makes it popular for fine-tuning a rear gear for any particular application. The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide. trucks varied more, early half ton trucks got the 28-spline axles and 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. by Ford exist in the size of the outer axle bearings in the housings and For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. Ford codes may have one or two characters, but any code starts with a letter. Gear Ratios - RPM from Speed, Rear & Trans. popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. It has more ground clearance than a Dana 60. if not I have other 9" info archived I can post. 1/2 ton 4X4 pickups! It's important to know the friction quality and pad size before selecting a new set of disc brake pads. The Parts You Need to Build a Bulletproof Ford 9" Rear End allow larger ring gear to fit. The axle identification tag is located at about the 3 oclock position under the third-member mounting nut when you are looking straight at the front of the axle. Selecting the Best Gear Ratio - Mark Williams Enterprises, Inc earlier housings used in cars from 1957 to mid 1960s tended to be the 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. The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. Builder V8 Billys 1966 Ford Fairlane Twin Turbo 427 RestoMod was built for Street and Strip. Both axles share a common design and are often referred to as banjo style or third-member style. the axle from around the 1957 model year right up until the early 1980s About | Contact | Terms | Privacy. for it. These were used sporadically until about 1969. The typical 3 inch-diameter tubes can be a bit flimsy in higher-power applications. How to Identify Ford Rear Ends | It Still Runs If measuring the drum-to-drum distance, add .200-inch to these values. 31-spline carriers and axle shafts. As part of my research, I went to renowned Currie Enterprises and gathered one of just about every different 9-inch axle variant. Here is a quick visual summary: The 1957 housings do not have dimples on them and have an oil drain plug. The 9-inch third-member bottom fasteners, on the left, can only be accessed with a wrench. The straddle-mounted pinion has a roller bearing in the gear case, which provides additional support for the pinion under heavy loads. 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. I put together a whole collection of housings and third members. mind as mentioned, the Fairlane spring perch distances were not the same Richmond Tech Support. there is the letter "N" than this is a NODULAR CASE (GREAT) this For a better experience, please enable JavaScript in your browser before proceeding. The format has changed over the years but mostly follow this sequence:. are you wanting the listing for the ratio tags? in cars and trucks. - Rod Stroke Ratio - Stroke Size Rear Gear Requirements - Rear End Gear Ratio Needed - Speed from RPM, Rear & Trans. Get any 3 for $25 plus shipping. 100 x 4.12. Rhodes Race Cars Unwelded Fabricated Rear End Housing Ford 9 in. FMX, three-speed, automatic. can get your submission posted and acknowledged If an L is included, it was equipped with a limited-slip differential or Traction- Lok. Ford 9 inch Third Members Assemblies - John's Industries 76-77 large bearing. Unless you are building a Pinto or straight six-cylinder vehicle, you want to avoid it. Locate the Safety Compliance Certification Label on the driver's side front or rear door panel. and 429CJ cars.From what I have seen don't expect to find them in 390 or Along with the many different brake and wheel end varieties, many different styles of axle shaft ends were manufactured. 9-Inch Standard Ring And Pinion Gear Sets (3.00 to 6.50 Ratios) $240.00. Exceptions to this were the ultra Hi performance Boss 302s, 1957 . also received the larger axle bearings housings. 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 for the swap to be performed. There are several reasons for this. The Ford 9-inch is the most desirable drag racing rear end because it has a removable carrier, which allows quick rear end changes. The 1960s to 1967s still retain the dimples but also have an oil level plug in the back cover. "Pro" gears are designed specifically for drag racing. It was also used in the 1983-1996 full-size Bronco, and E150 Econoline . There may be other labels attached to that pillar so pay attention to one that looks similar to the one below. 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. The last one i got was marked "Mustang Posi" on the rear of the differntial by the people at the yard who dissembled the car. Many aftermarket companies produce 9 Ford equivalent rear axles for the drag racing and hot rod industry. Generally, aftermarket shafts have to be purchased Repairing a twisted brake or throttle cable with a simple homemade tool in just minutes Easy and functional. I'm not responsible for incorrect information, Width: all measurements are flange to flange, Ford Rear Axle Assembly Identification - Page 01 - FORDification.com. GM Truck Complete Rear End Packages. 56" Differential Identification | West Coast Differentials The letters I and O are skipped to avoid confusion with the numbers one and zero. The later How can one verify "Posi" without taking the differential apart? pattern in most cases differed from the car, and due to the bearing size Find your transmission and rear gear multiplier below. Ford 8-in. differential carriers | Hemmings By positraction, we talk about the type of differential the car uses, whether a limited-slip differential or a conventional non-Positraction differential. Some tags reference the week of the month instead of the exact day and just use a letter (A to E) for first through the fifth week of the month. The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. found in the trucks up to around 1982. 56" Both standard and W-series cases are made out of gray cast iron. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 used the 9-inch rear, regardless of engine size. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing. The Ford Mustang and Thunderbird used this style for a few model years. Axle Size/Strength Chart; Explained Videos; Tech Articles; 9-Inch Ford. Note the two lower bolts at 6 and 7 oclock have straight access with a socket. Our experts will help you find the correct ring and pinion set for your particular application. Rearend/Axle Length Calculator. It is the one most commonly With 568 Ford 9 Inch Parts for sale, you're sure to find the ideal parts . Most of The aftermarket has responded to this by offering a plethora of ratios ranging from 2.91 to 6.50:1. If you know your axle tag number, simply go to the second table. * Coupon does not apply to Oval Size Matters T-Shirt. If the case has two verticle RIBS ,from top to It can also help in identifying the axle ratio of your particular vehicle. differences, 28-spline car axle shafts are much more abundant than the The case 7.5 inch, 8.5 inch, 10.5 inch. The axle tag typically has two lines of numbers and letters stamped on it. You I have a '50 Club Coupe and have experienced this first hand. The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. The Ford 9 inch rear end also has the widest variety of ratios on the market, Particularly in the 3.0:1 to 5.0:1 range. - as in the Mustang line, most however never received a factory 9-inch). if one wants to use a 31-spline truck carrier in a car. This is because the supply is limited to popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. The rear end width is important on shoebox Fords if you want some selection on wheels. Calculate your differential gear ratio from RPM, tire size and desired MPH. There are 4 different sets of rear axles that would have come stock in 66-77 Broncos. also received the larger axle bearings housings. Dec 1, 2011. Comet that has had a HIPO SMALL block with 31-splines and a locker. Ring and Pinions from Motive Gear 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. Ford 8.8-Inch Rear Axle History & Specs - The Ranger Station 5.4L (including Lightning) and some 44 super cabs and higher GVWR models which were equipped with the heavier-duty 9.75-Inch rear axle. An assortment of Ford 9-inch axle stampings is welded together to create the housing. Use this information at your own risk. Some even consider these axles to be bulletproof. Projector vs. Reflector: Plan to upgrade your headlights? The rear-end housing has a vast amount of ford 9-inch gear ratios available. We offer Ford Racing ring and pinion gear sets in 3.55, 3.73, 4.10 and 4.56:1 gear ratios for solid axles, as well as Motive Gear's 3.90 and 4.30:1 gear sets. them. Ford non-overdrive transmissions include: C-4, three-speed, automatic. (often referred to as a "POSI") came to be a popular option and Well show you what to look for in this buyers guide. "N Case" was no longer needed for passenger car/truck This is when making a few phone calls to reputable axle builders can be helpful. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. The instructions below will walk you through the steps. The larger offset is better for strength and noise but worse for sliding and efficiency. This not easily accomplished with integral carrier axles, like the GM 10- and 12-bolt. The first table is the code and gear ratio. Your email address will not be published. The Fora platform includes forum software by XenForo. Install Kits and Gears Sets Listed By Rear End. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 thanks. The ring and pinion are then accessed, also from the front, by removing another 10 bolts. But the 9" is better in a couple respects: It's much lighter than a Dana 60. The 8.8" rear end is flat on the top and the bottom as well as the left and right. 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. Axle code. The "rough" Restoration matching issues will be avoided since the right optioned components will be used to make the restoration. Axle 4. Johns Industries Nodular Iron Assembly N1905JI $1728.00 With Open (New Gear) With Full Light Weight Spool $1409 With Trac-loc $1770 With Truetrac $1974 This third member comes with: A new, U.S.A. made John's nodular iron 9 inch case Case one pound lighter than the original Ford case Rated for up to 750hp A new U.S.A made John's billet aluminum pinion support A new forged pinion yoke of your . socket size and 7/16" fine thread. When you buy through our links, we may get a commission. 52" It's uncertain if this E Any of the W-series cases do have a fill plug machined in them. CASE" Talk to the experts. The BOM will identify the model number, the gear ratio, the type of differential, and all component parts. replaced, and that is why it remained in use for so long. This is an example of the only Ford 9-inch version that utilized one-piece tubes. The 7.5 should be plenty adequate for the application you describe, but an 8.8 is best. The tubes do not have any welds, and you just see the witness marks of the parting line for the dies on the tubes. See all 20 photos. for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch Spring perches must be cut and re-welded in order No. 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. station wagons-cars with 351 and up engines received 9-inch units - as did This consists of the Ford Pickup F100 lineup till the Ford F350 lineup. Here is an example of 11 x 2-inch drums brakes with the small bearing size on the left and the large Torino style on the right. With their high-volume production, the two biggest quality problems were leaks from poor welds and poor alignment of the housings. This is a typical axle tag that has been removed from the third member. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . 28 spline axles are tapered and cannot be shortened and re-splined. While we do offer cut-to-fit axles, you still need to ensure you have the proper measurements to be within the cut-to-fit area of the axle's splines. There is typically a stamped steel cover that must be removed to gain access to the internals. 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!. Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. Many companies, such as Currie Enterprises, Mark Williams Enterprises, Moser Engineering,and Strange Engineering, reproduce this design today. Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the 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. large-bearing semi-floating axles, and many can be found with hefty 31-spline