For example, Ford says the 2018 F-350 Super Duty 4x2 regular cab pickup equipped with the 6.2-liter . Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the
We offer a guide to follow when selecting a new set of brake pads for your race or street car. shafts. 31-spline carriers and "Traction Loc" style posi unit. The 28-tooth axle shafts are typically tapered and cannot be shortened. The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. wheel drives) right up until about 1982, these housings are by far the
Only the N-series cases are made out of the stronger, more desirable, nodular iron. Its called a 9 inch because the ring gear measures 9 inches. The heat treated aluminum alloy well suited to absorb high impact shock loads. Select the Towing Guide for your vehicle's model year. If you know your axle tag number, simply go to the second table. Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. There are several reasons for this. A forum community dedicated to Ford performance owners and enthusiasts. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. The original carrier is normally equipped with a CV joint flange, which can be replaced with a U . The axle model codes are interchangeable, typically the suffixes are different for a revision change but the axle is still interchangeable with one having the previous suffix. Ford rear ends, or differentials, were manufactured by either the Dana Corporation or Ford. also received the larger axle bearings housings. Ray. If there is an "L" in between, you should have a locking or limited slip differential. 800-646-6718. Measuring for your 9-inch axles requires a few basic measurements to be taken. Dont be surprised if the tag you have does not exactly match this. With their high-volume production, the two biggest quality problems were leaks from poor welds and poor alignment of the housings. Note the two lower bolts at 6 and 7 oclock have straight access with a socket. (final drop). First locate your current gear ratio and tire diameter and then find your approximate RPM at 65 MPH, then reference your new tire diameter with your desired RPM to find the new gear ratio needed. 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. In 1963, Ford includedmore information. GM G-body 78-87 Complete 9" Rear End Package. . The code, 4L11, tells us that it is a 4.11:1 ratio with a limited-slip or Traction-Lok differential. Ford used
There is a machined roller bearing race on the pinion head portion that points at the differential opposite thetapered bearing races. also received the larger axle bearings housings. 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 . The later
It is the one most commonly
Pay attention to the Axle column, where you will get the correct Axle identification code similar to the one stamped on a metal tag on the rear-end axle. housings also evolved over the years: The
to the housing, the small bearing housings use 9/16" socket size nuts
as the Mustang. 1964-1971 Falcon, Comet, some 1965-1969 Mustangs or 1964-1967 Ranchero V8 cars. Find the word AXLE under the bar code. It is underneath one of the nuts that holds the third member in place. 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. for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes
There were many instances of cuts and scratches from the thin steel tags sticking up on the axles. 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 early housings are ok for the average street performance cars. around 64-65 I believe.They are most often found behind the later 428CJ
(CROSS SECTION WIDTH x 0.ASPECT RATIO x 2 25.4) + WHEEL DIAMETER = OVERALL TIRE DIAMETER. If you liked this article you will LOVE the full book. 70's. Discount is automatically applied. Click on the 'Submit' button to find out how you
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. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing. weakest and had abrupt ending but welded carrier centers to tubes and a
Differential Gear Ratio Calculator. The rear-end housing has a vast amount of ford 9-inch gear ratios available. 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. On some tags, the first 2 digits don't appear on the tag, but they must be used to identify the axle. A copy of the Ford Axle Code Chart is linked below in this article. This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. I guess this helps add to the splendor of the vehicle. Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner! GM F-Body Complete 9" Rear End Packages. Also notice the part number and metal axle tag. 65-66 Mustang = 57.25 inches. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. Paint gmc dupont charts reference chart 1956 1959. There is a very fundamental difference between Fords 8.8- and 9-inch axles. duty.And believe it or not, they were also used in some FE equipped Ford
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. You will need to get your hands on your manufacturers axle code chart for this part. The Daytona- style cartridge allows for a larger pinion head bearing when compared to the standard pinion cartridge. 4. Gear Ratios Drag Strip Performance - 1/8 Mile Horsepower Requirements from MPH - 1/8 Mile Horsepower Requirements from ET - 1/8 Mile ET from MPH - MPH - Km/H in 1/4 Mile using Horsepower It's uncertain if this E
carriers both, as well as with the spline count on the axle shafts. To determine the axle ratioof your vehicle, locate thetwo-digitaxle code first, then use your vehicle'stowing guide to find the axle ratio that corresponds to that code. This pinion shows excessive wear on the trunnion surface and should not be re-used. This chart references the connection between the month codes and the actual month. C-6, three-speed, automatic. 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. medianet_width = "300";
Cost and complexity are two. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. found in the trucks up to around 1982. 66-75 small bearing, 2. Let's see, I have had 2.79. is by far the most abundant case being used in both full size Ford cars
popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. There was a desire to have the stronger, larger tubes near the center of the axle but still retain the narrower tube ends for the wheel ends and the unique Shelby suspension brackets. You can find the axle code on the Safety Standard Certification label information. You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. The Ford 8.8 is an automotive axle manufactured by Ford Motor Company at the Sterling Axle Plant in Sterling Heights, MI.It was first used in model year 1983 Ford trucks. Hot rodders and drag racers use 9 Ford rear-ends and their aftermarket descendants in just about everything not just Ford cars and trucks. - as in the Mustang line, most however never received a factory 9-inch). This format is also applicableto casting date codes. The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. "N Case" was no longer needed for passenger car/truck
70's. Get any 3 for $25 plus shipping. 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
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. it was very complete. How can one verify "Posi" without taking the differential apart? When you buy through our links, we may get a commission. These have a C4AW-4025-B casting part number next to the adjuster nut. 1973 and later cars have a 55 bolt pattern, and the axles cannot be shortened. Here is a picture of the milling machine cutting new spline teeth after the axle has been cut to length. The Ford 9-inch can be found under 1974-1986 F-150s and 1978-1986 Broncos. The
1972 and earlier, 31 spline axles have the ability to be shortened. 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. It has been said that it has a higher
This was an 8.75- inch ring gear in a 9-inch housing. I reference these axles based on the ring gear nominal outside diameter in inches. The Ford version uses larger axle shafts and different lube flow strategy. The same applies to vehicles with codes containing numbers alone. Written by Joe Palazzolo and Republished with Permission of CarTech Inc. 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. 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. the few cars and early Broncos (and some early trucks) which received
1960-1967 two dimples, flat center band, oil level hole in the back cover. Read more: CV Axle Boot: Overview, Signs, And Replacement. Anyone know? Content. determine which axle housing many cars and trucks received. Axles were similar to the Ford 9-inch 28-spline units. The middle number is the ring gear diameter in inches, typically an 8 or 9. There are 8.5-inch gears installed in these housings for lowerpower vehicle applications. Are reviews modified or monitored before being published? 66-75 large bearing, 3. and 429CJ cars.From what I have seen don't expect to find them in 390 or
many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4
1. It was then replaced by the Ford 8.8 inch rear axle. Because
54"
About | Contact | Terms | Privacy. In this chapter I share a summary of decades of work on these axles. We have a large selection of gear sets in stock and can recommend the correct . Calculating the torque multiplication that your axle gears provide is quite easy. From my piles of rare parts, here is an independent cast-iron 8.8-inch carrier axle. The repair process requires the axle to be disassembled and thoroughly cleaned. Chevy differentials: how to rebuild the 10- and 12 . much more difficult to locate. It was not the only axle used, but was by far one of
This is a typical axle tag that has been removed from the third member. When it comes down to actual shafts as well, since the truck lug
of course most desirable is the N case, first used on the 427 Galaxies
The additional straddle mount pocket bearing provides additional support to the pinion head during high-torque events. No. 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. Ratings and reviews are provided by customers who have either purchased a vehicle or visited a dealership for service. The Ford 9 inch housing is a semi-floating, drop-out axle. The complete guide to master any grease gun, Battery vs. Starter vs. Alternator: How to jumpstart even the most stubborn of car. Gear Ratios - RPM from Speed, Rear & Trans. pattern (same as older Jeep), a 65-inch width at the wheel mounting surfaces,
as the Mustang. The most
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. Learn how to hook up a 1-wire alternator on your vehicle. You will also learn how to identify the codes in Ford vehicles. The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. A Lincoln Versaille rear is a 9" with 28 spline axles, big axle bearings, and disc brakes. The 8.8" rear end is flat on the top and the bottom as well as the left and right. This will ensure that the correct replacement parts are purchased or salvaged from a junkyard to be used in the vehicle. This strengthens the whole rear end assembly. Again, the overall first-gear ratio with the TH400 and 4.10:1 rear gear would be 10.168:1. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . The ring and pinion are then accessed, also from the front, by removing another 10 bolts. This chart serves as a general guideline for axle fl ange-to-fl ange width based on different models and production years. The exception is the 2002-2003 Ford Explorer Sport which still used the solid rear 8.8-Inch axle. Our Mopar flexplate buyers guide will help. There are three versions with external Ns cast in; note the more curved style on the top right. A strong 9" with a nodular diff and 31 spline axles is fairly comparable in strength to a stock Dana 60 rear end. Ranger
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. 31-spline carriers and axle shafts. Axle code. Enter the required Overall Width, Pinion Offset (location), Brake Space and Drum/Rotor thickness to find axle length and housing width. This pinion has the tapered bearings and collapsible spacer in place. Mustangs and Fairlanes. to the housing, the small bearing housings use 9/16" socket size nuts
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. Save my name, email, and website in this browser for the next time I comment. This is by far the most common axle used by restorers, hot rodders, customizers, and racers. 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. The
Ford Axle code identification, Read more: Front Axle Of A Car: Types, Functions, And Replacement. Because
The center section is the differential assembly. When narrowing a Ford 9 inch rear end, the first step is determining the overall length you need. A
9-Inch Standard Ring And Pinion Gear Sets (3.00 to 6.50 Ratios) $240.00. Dec 1, 2011. This video is a good example of what goes into the process . Learn more. in cars and trucks. 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. for it. The
Your email address will not be published. weakest and had abrupt ending but welded carrier centers to tubes and a
It is quite strong since it was designed to handel the 260 V8 engine, the 8 inch can also be beefed up for even more power with custom racing or Hot Rod parts. It was not the only axle used, but was by far one of
The most
The letters I and O are skipped to avoid confusion with the numbers one and zero. The first number is the last digit of the model year of the decade, the next digit is a letter and represents the month (A is for January, B is for February, and so on), and the last two digits represent the day of the month. the early housings are ok for the average street performance cars. The N cases typically came with the larger Daytona-style pinion support bearing, and 31-spline axle shafts. widths I keep in mind for Mustangs are the following: 52"
We'll also walk you through choosing the correct parts in order to make this installation a breeze! 100 x 4.12. Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. Most of the time, the differences are in shock and spring mounting brackets and, of course, brake hardware. The Ford 9-inch is the most desirable drag racing rear end because it has a removable carrier, which allows quick rear end changes. differences, 28-spline car axle shafts are much more abundant than the
Have
The instructions below will walk you through the steps. (The third digit of the axle code identifies the ratio and/or capacity of the front axle, if applicable. most abundant. 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.. This is because the supply is limited to
This is because the supply is limited to
In order to verify a nodular unit, you need to look on the inside of the casting. If an L is included, it was equipped with a limited-slip differential or Traction- Lok. There are also unique domestic special-option tags, which dont follow the format. housings appeared in either 1966 or 1967 with the familiar "Hump"
The
So again, unlike the GM and Dana axles that require a unique differential with different ratios, the Ford 8.8-inch differential is common across all of the ring-and-pinion ratios. The "rough"
Richmond Tech Support. Some have only one access hole for the backing plate bolts, while others have three. inches
The top line typically starts with a three-digit axle model code (or the prefix of the part number), followed by a dash, and then thesuffix. Notice the 8.0-inch ring gear diameter cast into the rear cover below the fill plug. socket size and 7/16" fine thread. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4
Our expert customer support technicians are available Monday through Friday from 7:00 a.m. until 7:00 p.m., CST. The later
So rare Ford dropped it after 66, when they also dropped the 7" Equalock. The bottom line begins with the ratio being the first set of numbers. Typically with just this information, you can cross reference what you need to know about the axle. These were used sporadically until about 1969. Select the Towing Guide for your vehicle's model year. Therefore, these axle assemblies require better quality oil and good underbody airflow to keep the unit cool. The case
"N
popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. around 64-65 I believe.They are most often found behind the later 428CJ
By positraction, we talk about the type of differential the car uses, whether a limited-slip differential or a conventional non-Positraction differential. narrowed rear ends due to the added strength in the middle. There is a huge aftermarket support for this axle design. Spring perches must be cut and re-welded in order
A metal axle tag is typically located on the driver-side front of the third member. the axle from around the 1957 model year right up until the early 1980s
The image below shows the Safety Label of a Ford Truck. The straddle-mounted pinion has a roller bearing in the gear case, which provides additional support for the pinion under heavy loads. 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 certification plate can be located on the lock face of the left door edge. Some differential experts tell you that the Blue Oval engineers copied the 12-bolt design when they came up with the 8.8-inch axle. 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. Dive into some of the history and unique differences between Ford and Chevy spindles for solid front axles and what will perform best on your hot rod. the axle from around the 1957 model year right up until the early 1980s
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. Four of the 11 inch-diameter versions are pictured: 1 inches (top left), 2 inches (top right), 2 inches (bottom left), and 3 inches (bottom right). The 7.5" rear end is also flat on top and bottom. is the strongest factory case made BY FORD!!! People tend to be drawn to it like a magnet. The axle code in our example, H9, has a specific meaning. Generally most cars received the small axle bearings and 28-spline axle
Pairing your vehicle with the wrong axle components will not only damage your vehicle but cost you a lot down the line. It's . the Broncos from 1966 to 1977, they stayed with the 28-spline units. WJ Handy Dad recommends safe practices when working on vehicles/homes and or with tools seen or implied in this video. Ford intermediates with big blocks. The tags were replaced with adhesive labels that are placed around the axle tube near the brake and wheel end. (narrowest 9-inch housing), 1966-1977 Bronco 58 inches but has 5-on-5 1/2 inch
The Ford Mustang and Thunderbird used this style for a few model years. The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. 1967-1973 Mustang/Cougar - light duty, thinnest housing material, small axle
station wagons-cars with 351 and up engines received 9-inch units - as did
N-case. Some of the heavier cars like the Galaxies also received the
The axle tag typically has two lines of numbers and letters stamped on it. middle of case it is a good IRON type IF in the very center of this case
This not easily accomplished with integral carrier axles, like the GM 10- and 12-bolt. Mismatching issues are a big problem when it comes to automotive repairs. The transmission yokes are CNC machined to assure concentricity and balance for ideal driveshaft operation. Ratio & type. For a Ford 9 inch rear end, swapping gears is fairly easy as it has a removable third member. 1973-1979 Ford Truck Rear Axle Codes. From the arrow, you can see the axle code is H9. Note: Rear axle ratios are available for 2008 and newer models. 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.
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