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100 x 4.12. Mustangs and Fairlanes. 31-spline carriers and "Traction Loc" style posi unit. People tend to be drawn to it like a magnet. 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. The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. A Come join the discussion about popular models such as the Mustang, Galaxie, Falcon, Fairlane, Torino, Shelby and many more! Many people are not aware that Ford made a smaller banjo axle and confuse the 8-inch for a 9-inch. These labels have a specific code that is similar to the axle code on the 9-inch axles. 9 inch ratio chart | Ford Muscle Cars Tech Forum These tags are typically quite beat up, twisted, and rusted over the years. The very rare optional 6 cylinder rear was the 3.50. Ford differential tags are very . This case looked like a nodular unit from the front regarding rib structure but did not have the N on it. Builder V8 Billys 1966 Ford Fairlane Twin Turbo 427 RestoMod was built for Street and Strip. Axle code. 56" Rusty but Rare 1976 Chevy K10 Sport Truck Revival! This will ensure that the correct replacement parts are purchased or salvaged from a junkyard to be used in the vehicle. 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. You can install a true 9-inch gear in these housings as well. Strange Engineerings superior line of Chrome Moly Transmission yokes are manufactured from high quality forgings and fully heat treated to achieve maximum tensile strength. Keep in - as in the Mustang line, most however never received a factory 9-inch). smooth backside. (It was later used for pick-ups and Broncos.) 4. This is a relatively common issue on these housings. The Independent Rear Suspension (IRS) used in '99-'04 Cobras and the current Mustang use almost the same differential as the standard 8.8. are you wanting the listing for the ratio tags? You are looking for a nodular iron case, with its telltale N cast into the front or inside wall. Many aftermarket companies produce 9 Ford equivalent rear axles for the drag racing and hot rod industry. The smaller 8-inch third member is on the right. (CROSS SECTION WIDTH x 0.ASPECT RATIO x 2 25.4) + WHEEL DIAMETER = OVERALL TIRE DIAMETER. common carrier housing found is the C7AW-E. Now that you have identified the axle code, let us know the axle ratio. 1958-1959 two dimples on the back of housing, flat center band, some had drain holes. It is as easy to cut down as any other 8 or 9 inch Ford axel. Ford 9 inch Third Members Assemblies - John's Industries 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 is when making a few phone calls to reputable axle builders can be helpful. (See Chapter 8 for how to install a 9-inch in a classic 1957 Chevy Bel Air as a performance upgrade.). Ford 8-in. differential carriers | Hemmings Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? Let's see, I have had 2.79. 6. 67-70 Mustang = 59.25 inches. Another bonus is that the axleshafts are of equal length, so youll widths I keep in mind for Mustangs are the following: There are even different pinion cartridges that have been available from the various production years and models for this axle. Our editors pick the products & services we write about. 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. is the strongest factory case made BY FORD!!! The cast-iron third member is installed from the front of the housing. The the axle from around the 1957 model year right up until the early 1980s Boss 429s, 427s, 428 CJ/SCJ and the 429 cars which received the The Ford Axle Code Chart: Everything You Need To Know - Gmund Cars We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. The engines flexplate is a critical part to transferring power to your drivetrain. 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.. (often referred to as a "POSI") came to be a popular option and There are even different drum brake registers. With their high-volume production, the two biggest quality problems were leaks from poor welds and poor alignment of the housings. 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 the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch The bar code is present on this unit as well, although later axles just carry the bar code and the metal tag is no longer required. We'll also walk you through choosing the correct parts in order to make this installation a breeze! 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. carriers, while sometime in the early 70's the switch was made to mostly These first became available on the 1964 Galaxies with the 427-ci engine and were found on many higher horsepower cars and trucks. Besides the styling of the Ford Edsel, even the axle shafts were very unusual. Differentials take the power from the rear axle and transfer it to the rear wheels by way of special gears. Home / Performance Front & Rearends / Parts Department / Ring & Pinion Sets / 9-Inch Ford. Axles Tubes Are 4-Inches. GM Truck Complete Rear End Packages. Finally, using bearing retainers that secure the axle at the flange, versus a C-clip style that secure the axles at the differential, means in the case of axle failure the axle flange and wheel will stay with the housing and not leave the vehicle, potentially causing brake failure and lack of control on the racing surface. 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. version of the case came into use in 1967 or in subsequent years, but it I had an early '70's Lincoln with a 460 come into the shop one time and it had the 2.33:1 ratio in a 9 inch. The Ford 9-inch has a reputation as a durable axle that can transmit enormous torque, and this is rightfully deserved. medianet_crid = "364974658"; We have a large selection of gear sets in stock and can recommend the correct . Most 1972 and earlier 31-tooth spline shafts can be shortened and 1973 and later versions typically cannot be resplined. The answer lies in several of the Ford 9-inchs design aspects, starting with the Ford 9 inch gears. The 1958s and 1959s have two dimples on either side of the housing and some have drain plugs. housings appeared in either 1966 or 1967 with the familiar "Hump" most abundant. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 Ford used For reference, this section from the Ford MPC is posted . One exception to this was The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to the 3.89 and 4.11. The 9-inch ring and pinion is front-loaded into the rear end housing. Buyers Guide. Any of the W-series cases do have a fill plug machined in them. Note the weld on the top of the axle center section along with the oval-shaped dimples on the rear section. applications due to the demise of most performance engine options in the It is the one most commonly Gear Ratios - RPM from Speed, Rear & Trans. Also notice the part number and metal axle tag. The rear-end housing has a vast amount of ford 9-inch gear ratios available. determine which axle housing many cars and trucks received. Handy Ford 9 Inch Ratio Chart | 460 Ford Forum 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 housings also evolved over the years: The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. You 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. 289 Hipo cars.The N cases went with 31 spline centers and are for rugged This is by far the most common axle used by restorers, hot rodders, customizers, and racers. Original gear ratios range between 2.79:1 and 5.43:1, and aftermarket replacement gears are available for many ratios as well. It's uncertain if this E 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. Mismatching issues are a big problem when it comes to automotive repairs. 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 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. also received the larger axle bearings housings. and 429CJ cars.From what I have seen don't expect to find them in 390 or 54" other Ford Ranger enthusiasts. Call 800.979.0122, 7am-10pm, everyday. Drag Racing 101 ~ Everything You Need to Know! Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. 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 of the transmission and then reverse it to show engine RPM for every 10mph and each transmission gear. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. common carrier housing found is the C7AW-E. Content. You can find the axle code on the Safety Standard Certification label information. 52" version of the case came into use in 1967 or in subsequent years, but it 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. 1964-1971 Falcon, Comet, some 1965-1969 Mustangs or 1964-1967 Ranchero V8 cars. in cars and trucks. Axle code is a combination of letters and numbers stamped on a small plate/tag attached to your vehicles rear axle. This sensor is for the anti-lock brake system. Dont be surprised if the tag you have does not exactly match this. 1967-1973 Mustang, Torino, Ranchero, Fairlane 9-inch However, the critical aspects of the rear axle are the axle flanges and axle lengths. GM Tri 5 55-57 Chevy Complete 9" Rear End Package. If there is an "L" in between, you should have a locking or limited slip differential. 8" ford rear ends. what gears available? | The H.A.M.B. 31-spline axles and carriers for most trucks. Ford 9 Inch Rear End & Axle Information | JEGS around 64-65 I believe.They are most often found behind the later 428CJ You can do this by multiplying by the gear ratio. Measuring for your 9-inch axles requires a few basic measurements to be taken. 74-75 medium duty large bearing, and. 9-Inch Gears - Currie Enterprises This chart applies to all Ford non-overdirve transmissions, manual and automatic. The 8-inch also was only available with 28-tooth axle shafts. Since 2011, V6 and V8 Mustangs have used Ford's 8.8" rear end, but before that many used a 7.5" rear. Ford Mustang Rear Gear Ratios | CJ Pony Parts Ford 9 inch rear end identification is easy and can be accomplished with nothing more than a deep socket as a "go-no-go" gauge for the bottom two retaining nuts on the center section. This was offered on the 1960 F-100 truck. The Parts You Need to Build a Bulletproof Ford 9" Rear End These have a C4AW-4025-B casting part number next to the adjuster nut. the early housings are ok for the average street performance cars. SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read. Ford 9 inch rear end identification is easy and can be accomplished with nothing more than a deep socket as a go-no-go gauge for the bottom two retaining nuts on the center section. Ford trucks and cars from 1968 onwards are equipped with the Ford Axle codes, which are clearly indicated on the certification plate. The Lincoln Continental style of disc brakes use 11-inch rotors. Performance Front & Rearends GM Vehicles It is a banjo-style axle as is the 8-inch. Variations them. The exception is the 2002-2003 Ford Explorer Sport which still used the solid rear 8.8-Inch axle. pattern in most cases differed from the car, and due to the bearing size Start by opening the left drivers front door. used the 9-inch rear, regardless of engine size. The first two digits of the axle code identify the ratio and capacity of the rear axle. socket size and 7/16" fine thread. Ford 8.8 axle - Wikipedia the best. Theres an easy way to tell an 8-inch apart from a 9-inch. 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. I reference these axles based on the ring gear nominal outside diameter in inches. Differential Identification | West Coast Differentials duty.And believe it or not, they were also used in some FE equipped Ford Ford Rear Axle Assembly Identification - Page 01 . It was also used in the 1983-1996 full-size Bronco, and E150 Econoline . * Pro Gears are specifically designed for drag race only. 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 . is by far the most abundant case being used in both full size Ford cars The other identification information, 9, as observed from the chart, indicates a 3.55 gear ratio of the Ford F-150. Like the H in our case shows a car with a limited-slip differential. Careful aftermarket shops and their stringent attention to repairing these housings are able to correct many of these issues. actual car posi units, which were primarily 28-spline carriers, can be While the 1350 u-joints provide enough strength to handle most demanding of applications, Strange also offers a variety of yokes with1480 u-joints for the ultimate in driveline strength and dependability. The WFE-V2 helps us fi nd the decade of the 1970s. This video is a good example of what goes into the process . carriers, while sometime in the early 70's the switch was made to mostly For a Ford 9 inch rear end, swapping gears is fairly easy as it has a removable third member. i.e. 1960-1967 two dimples, flat center band, oil level hole in the back cover. Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) There were many instances of cuts and scratches from the thin steel tags sticking up on the axles. Gear Ratio and Tire Size Chart | HowStuffWorks Differential Gear Ratio Calculator. These used what is referred to as a A metal axle tag is typically located on the driver-side front of the third member. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) used the 9-inch rear, regardless of engine size. How do I find the Axle Ratio and Limited Slip? It's important to know the friction quality and pad size before selecting a new set of disc brake pads. The 8.5- and 8.8-inch gears have even found themselves in the independent-carrier-style axles. From the arrow, you can see the axle code is H9. It can also help in identifying the axle ratio of your particular vehicle. (narrowest 9-inch housing), 1966-1977 Bronco 58 inches but has 5-on-5 1/2 inch 56" some 302 4V cars with optional gear ratios). But if youre looking for an original, they can be spotted quite readily even without an axle identifycation tag.