ford 9 inch rear end gear ratios chart

Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. There are a few exceptions that you will see in the Ford Axle code chart. Read more: CV Axle Boot: Overview, Signs, And Replacement. wheel drives) right up until about 1982, these housings are by far the Info To Share? 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. In the early days of hot rodding, with the majority of hot rods being Fords, it stands to reason the '30s and '40s Ford "banjo" rearend dominated the scene. Thanks. Visit the RV & Trailer Towing Guides page on the Ford fleet website. 31-spline carriers and axle shafts. But to be correct, it is a 3/4 fl oat. . But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not realistic. 4. 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. These variations include different-size drum brakes, disc brakes, and wheel hub arrangements. determine which axle housing many cars and trucks received. 56" On some tags, the first 2 digits don't appear on the tag, but they must be used to identify the axle. *** SELECT GEAR RATIO FOR PRICE *** Categories. Call 800.979.0122, 7am-10pm, everyday. 1957 . This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. This is an example of the brakes that fi t the small wheel end bearing for a 10 x 2-inch-wide drum brake on the left and a 10 x 1-inch on the right. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. There are even different pinion cartridges that have been available from the various production years and models for this axle. Ranger Station, Submit When it comes down to actual shafts as well, since the truck lug Tip: To search theTowing Guide, press CTRL + Fto open a search box in your browser. many half ton trucks continued to utilize the 9-inch (both 2 wheel & 4 The very rare optional 6 cylinder rear was the 3.50. 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. Buyers Guide. The complete guide to master any grease gun, Battery vs. Starter vs. Alternator: How to jumpstart even the most stubborn of car. used the 9-inch rear, regardless of engine size. Hypoid offset is the distance between the centerline of the pinion and the centerline of the ring gear. 8. The last set of digits on the top row on the right side is the date code. The desirable N-style, nodular-iron gear cases are available in four different versions. mind as mentioned, the Fairlane spring perch distances were not the same 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. The "rough" 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. in the backside middle and stronger tubes. The WFE-V2 helps us fi nd the decade of the 1970s. type, 28 and 31 splines, Ranchero/Torino - heavy duty thick wall housing, 3.25 inch diameter axle We have a large selection of gear sets in stock and can recommend the correct . around 64-65 I believe.They are most often found behind the later 428CJ 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. "N Ratio & type. 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. A strong 9" with a nodular diff and 31 spline axles is fairly comparable in strength to a stock Dana 60 rear end. medianet_height = "250"; Written by Joe Palazzolo and Republished with Permission of CarTech Inc. This consists of the Ford Pickup F100 lineup till the Ford F350 lineup. TEETH 1 4.11 79-0097-1 37-9 1 4.29 79-0098-1 30-7 1 4.57 79-0101-1 32-7 2 5.14 79-0109-L 36-7 2 5.17 79-0112-L 31-6 2 5.20 79-0111-L 26-5 For Maximum . Only the N-series cases are made out of the stronger, more desirable, nodular iron. JavaScript is disabled. for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes The 1958s and 1959s have two dimples on either side of the housing and some have drain plugs. Later You version of the case came into use in 1967 or in subsequent years, but it Housing end bolt patterns can be confirmed on the bottom of the axle order form. The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. in cars and trucks. WJ Handy Dad assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Ford 9 inch Gears. The 28-tooth axle shafts are typically tapered and cannot be shortened. These labels have a specific code that is similar to the axle code on the 9-inch axles. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) For example: 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 earlier housings used in cars from 1957 to mid 1960s tended to be the The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. Typically with just this information, you can cross reference what you need to know about the axle. 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 original applications are as follows: 1. 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. The Ford Axle code chart is a handy tool for positraction replacements. By positraction, we talk about the type of differential the car uses, whether a limited-slip differential or a conventional non-Positraction differential. housings. Axle code is a combination of letters and numbers stamped on a small plate/tag attached to your vehicles rear axle. 100 x 4.12. The other identification information, 9, as observed from the chart, indicates a 3.55 gear ratio of the Ford F-150. The later and Fairlane axle housings are often grouped together because they are the 77-81 Lincoln Versailles. is the strongest factory case made BY FORD!!! Measuring from axle flange to axle flange (measurement A in the diagram below) will give you total axle housing width. So, after crawling under just over 50 Cars, trucks etc at the local Upull, I found that a 1995 2wd 2.3 Ranger has the correct length driveshaft at 47.5".chevy truck driveshaft length chart. 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. It is the one most commonly GM X-Body Nova Complete Rear End Packages. It also has a 9-inch ring gear. The large bearing size was available with fi ve different brake drum widths. Ford trucks and cars from 1968 onwards are equipped with the Ford Axle codes, which are clearly indicated on the certification plate. For reference, this section from the Ford MPC is posted . The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to the 3.89 and 4.11. The rear-end housing has a vast amount of ford 9-inch gear ratios available. carriers, while sometime in the early 70's the switch was made to mostly The center section is the differential assembly. 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. . 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. As part of my research, I went to renowned Currie Enterprises and gathered one of just about every different 9-inch axle variant. Ray. Mismatching issues are a big problem when it comes to automotive repairs. The format has changed over the years but mostly follow this sequence:. earlier housings used in cars from 1957 to mid 1960s tended to be the 65-66 Mustang = 57.25 inches. It was in production on many Ford cars and trucks, first appearing in 1957 and finally replaced by the Salisbury-style 8.8-inch axle in 1986, saving about 50 pounds and boasting increased efficiency. The repair process requires the axle to be disassembled and thoroughly cleaned. Gross Vehicle Weight ( GVW ) would dimples. The 9-inch third-member bottom fasteners, on the left, can only be accessed with a wrench. The Ford version uses larger axle shafts and different lube flow strategy. The 1966 Mustang had 14 possible rear gear ratio/differential combinations. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. The axle was developed to replace the Ford 9-inch axle.This axle is still in production today for a variety of Ford vehicles. wood and natural gas. Width: all measurements are flange to flange. Click on the 'Submit' button to find out how you 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/. If the socket fits (as shown in our photo below) it is a Ford 8-inch housing. The certification plate can be located on the lock face of the left door edge. 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. 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. You can find the axle code on the Safety Standard Certification label information. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. The letters I and O are skipped to avoid confusion with the numbers one and zero. Fords small block and big block engine families have their share of flexplate differences. Many companies, such as Currie Enterprises, Mark Williams Enterprises, Moser Engineering,and Strange Engineering, reproduce this design today. This additional bearing and, more importantly, the necessary casting support structure is what drives the larger hypoid offset. Due to factors beyond the control of WJ Handy Dad, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. The BOM will identify the model number, the gear ratio, the type of differential, and all component parts. larger wheel bearing housings. Both 8- and 9-inch axle housings are made from a series of stampings that are fixtured and welded together. 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 . Ford rear ends, or differentials, were manufactured by either the Dana Corporation or Ford. popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. Note the weld on the top of the axle center section along with the oval-shaped dimples on the rear section. of course most desirable is the N case, first used on the 427 Galaxies If measuring the drum-to-drum distance, add .200-inch to these values. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. Richmond Tech Support. Read this first! in the backside middle and stronger tubes. A forum community dedicated to Ford performance owners and enthusiasts. Select the Towing Guide for your vehicle's model year. wheel drives) right up until about 1982, these housings are by far the A 2-inch version is not shown. For a better experience, please enable JavaScript in your browser before proceeding. can get your submission posted and acknowledged inch diameter all the way to the backing plate, coil housings have upper Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. If the case has two verticle RIBS ,from top to Ford personnel and/or dealership personnel cannot modify or remove reviews. same width, but the distance between spring perches is different between The unit on the top left seems to be nodular iron but requires a little more investigation to verify. A copy of the Ford Axle Code Chart is linked below in this article. 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 . Since these housings were a series of stamped-steel pieces all welded together, there were many different overall lengths, tubes sections, mounting brackets, and even general constructions over the years (see Chapter 5). Like the H in our case shows a car with a limited-slip differential. The image below shows the Safety Label of a Ford Truck. Most of The 9 Ford rear axle, so called because of a 9 ring gear diameter, is the choice of many circle track racers because of its strength, availability and ease of maintenance. Select the Towing Guide for your vehicle's model year. 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 The N cases had two vertical ribs, three horizontal ribs, and a machined-in fill plug. It was not the only axle used, but was by far one of 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. The 8.8 is a traditional semi-fl oat Salisbury axle with C-washers for axle retention. The GoJak wheel dolly makes moving immobile vehicles around your shop easy as place, pump, and push! This chart serves as a general guideline for axle fl ange-to-fl ange width based on different models and production years. 1967-1973 Mustang axles identified by wheel flange: two large holes and counter sunk center - 31 splines. Ford intermediates with big blocks. Leaf Spring: The Similarities And Differences. Ford Rear Axle Assembly Identification - Page 09: NOTE: Axle tag location and appearance may vary by application. but the link i was refering to listed codes by year and model. You will also learn how to identify the codes in Ford vehicles. Builder V8 Billys 1966 Ford Fairlane Twin Turbo 427 RestoMod was built for Street and Strip. Home / Performance Front & Rearends / Parts Department / Ring & Pinion Sets / 9-Inch Ford. Standard Ford 9 inch gear sets are primarily used in street applications. The Ford 9-inch is the most desirable drag racing rear end because it has a removable carrier, which allows quick rear end changes. Rhodes Race Cars Unwelded Fabricated Rear End Housing Ford 9 in. 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. 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) . If you know your axle tag number, simply go to the second table. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. Ranger Ford used GM Tri 5 55-57 Chevy Complete 9" Rear End Package. T & C FORD TOP LOADER 4 SPEED WIDE RATIO 2ND GEAR 31 TOOTH showing .

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