ford 9 inch rear end gear ratios chart

The bearing cups are in the pinion cartridge and the third bearing trunnion roller bearing is located in the gear case. 31-spline axles and carriers for most trucks. The aftermarket Daytona-style pinion cartridge accommodates the larger and stronger pinion head bearing. Tip: To search the Towing Guide, press CTRL + F to open a search box in your . . 4. the best. The leaking weld area is then ground down and a MIG or TIG welder is used for the repair. 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. Check it out. If you are fortunate enough to find an axle with the identification tag still attached, it will help solve part of the mystery of what application the axle came from and what might still be inside. Find the word AXLE under the bar code. * Pro Gears are specifically designed for drag race only. Of the four versions of the N case, three have an actual N cast into it right above the pinion cartridge. The later Generally most cars received the small axle bearings and 28-spline axle popular early swap being the 1957-1959 Ford for the 1965/1966 Mustang. Paint gmc dupont charts reference chart 1956 1959. Most of There is a very fundamental difference between Fords 8.8- and 9-inch axles. Original ratios are 2.47, 2.50, 2.75 or 3.0 with the 2.50 being the most common. An assortment of Ford 9-inch axle stampings is welded together to create the housing. Ford used Mustangs 52" The additional straddle mount pocket bearing provides additional support to the pinion head during high-torque events. 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 not easily accomplished with integral carrier axles, like the GM 10- and 12-bolt. 74-75 medium duty large bearing, and. It is common to find a 9-inch in a old Falcon or at car swap meets and shows are the units pulled from trucks with the Differential Gear Ratio Calculator. Note the two lower bolts at 6 and 7 oclock have straight access with a socket. Mustangs and Fairlanes. This particular pinion cartridge is well reinforced and much stronger than the stock production cartridge. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. around 64-65 I believe.They are most often found behind the later 428CJ 59.25 inches to 61.25 inches, 1957-1959 Ranchero and station wagon rears, 57.25 inches, 1967-1971 Comet, Cougar, Mustang, Fairlane, 59.25 inches, 1967 Fairlane 63.50 inches (coil springs), 1957-1959 Ranchero and station wagon 57.25 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. Locate the Safety Compliance Certification Label on the driver's side front or rear door panel. . 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. middle of case it is a good IRON type IF in the very center of this case The It is the one most commonly version of the case came into use in 1967 or in subsequent years, but it medianet_width = "300"; This includes the Center Case, the Pinion gear, the ring gear, and the differential or spool. It is a column with the label AXLE on top and the Axle Code at the bottom. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. used the 9-inch rear, regardless of engine size. Most of the later trucks 31-spline car shafts. The The answer lies in several of the Ford 9-inchs design aspects, starting with the Ford 9 inch gears. The ring gear speed sensor is shown in the upper right-hand portion of the photograph. The magnesium addition causes the grain structure to change from flakes to nodules and thus the name nodular iron. A simple formula to calculate Gear Ratio or Axle Ratios. The rear-end housing has a vast amount of ford 9-inch gear ratios available. C-6, three-speed, automatic. 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. The 28-tooth axle shafts are typically tapered and cannot be shortened. by Ford exist in the size of the outer axle bearings in the housings and The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to the 3.89 and 4.11. While the 8.8 is similar to the 12-bolt, it isnt identical. The N cases had two vertical ribs, three horizontal ribs, and a machined-in fill plug. Because of the long production history of this axle, many variants are available. other Ford Ranger enthusiasts. weakest and had abrupt ending but welded carrier centers to tubes and a Why is the Ford 9in rear end the go to rear axle for street and strip builds for over 70 years? When measuring from the top left bolt to the bottom left bolt, the 8.8" rear end will measure 11" from bolt to bolt. The 10,41 gear ratio is also great for off-road activities . 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. It's uncertain if this E for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch None of which changes the strength of the axle shaft. Ford 9 inch Gears. Where A=the first number (static reduction), Bi=Gear diameter, Bf=Ring Gear diameter, Cf= (Crown Wheel dia.) Axles were similar to the Ford 9-inch 28-spline units. is the strongest factory case made BY FORD!!! 3. 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. shafts. carriers, while sometime in the early 70's the switch was made to mostly 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. Another bonus is that the axleshafts are of equal length, so youll For reference, this section from the Ford MPC is posted . Give us a call at 800-216-1632 to get started. People tend to be drawn to it like a magnet. Cost and complexity are two. 1/2 ton 4X4 pickups! 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 . 54" There are even different pinion cartridges that have been available from the various production years and models for this axle. 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 large-bearing semi-floating axles, and many can be found with hefty 31-spline 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. This is a typical axle tag that has been removed from the third member. 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These tags provided information for the service technicians but wasnt that important for the vehicle assembly plants. nickel content and better casting than the earlier single ribbed cases it With the chart in hand, locate your vehicles axle code on the axle code column. 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. station wagons-cars with 351 and up engines received 9-inch units - as did smooth backside. The fundamental difference between these axles is how the gears are supported and which end of the axle housing (front or back) that they are assembled from. The Ford 9-inch has a reputation as a durable axle that can transmit enormous torque, and this is rightfully deserved. These axles even have a unique bolt pattern of five on 5 inches. The fourth version did not have the N in the casting on the outside but still retained the rib structure. 1957 no dimples, flat center band up the center of the rear cover, bottom drain plug. The 9-inch housing's center section will not allow the socket to clear, and . Most have the two driving holes for the manufacturing process while one has a more square looking drive end. For the Ford 9" rear end to be smaller and lighter than a Dana 60, the weight has to come from somewhere. 2. Rear ends with 3.42 gears usually come in 8.2 and 8.6-inch units, Rear ends with 3.73 gears come in 8.5 8.6-inch units Best Gear Ratio For Your GM 10 Bolt. Note: Rear axle ratios are available for 2008 and newer models. 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. If you know your axle tag number, simply go to the second table. Watch the video for all the details and you'll wonder why your shop hasn't had a set sooner! The straddle-mounted pinion has a roller bearing in the gear case, which provides additional support for the pinion under heavy loads. at car swap meets and shows are the units pulled from trucks with the The original carrier is normally equipped with a CV joint flange, which can be replaced with a U . to the housing, the small bearing housings use 9/16" socket size nuts Amateur restorer. Learn how to hook up a 1-wire alternator on your vehicle. 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 tubes with flat tops, 1969-1977 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- 3.25 actual car posi units, which were primarily 28-spline carriers, can be 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. The Ford 10.25-Inch Rear Axle Replaced The Dana 70 After 1985. Would very much apreciate it if someone would post it again. The 8.8 is a traditional semi-fl oat Salisbury axle with C-washers for axle retention. Of course, if your budget allows, you can purchase an aftermarket iron case that is stronger than any factory case. In order to verify a nodular unit, you need to look on the inside of the casting. First, you need to understand some fundamentals of the Ford axles to help guide your quest. 7.5 inch, 8.5 inch, 10.5 inch. Ford trucks and cars from 1968 onwards are equipped with the Ford Axle codes, which are clearly indicated on the certification plate. 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. with 3/8" fine thread, while the larger bearing use 11/16" You can install a true 9-inch gear in these housings as well. The middle number is the ring gear diameter in inches, typically an 8 or 9. And you can find the axle code charts on the internet from your manufacturer. Using the correct part is imperative to engine longevity and proper drivetrain assembly. The code, 4L11, tells us that it is a 4.11:1 ratio with a limited-slip or Traction-Lok differential. Part Category: Disc Brake Rotor and Hub Assembly.1999 Ford Ranger Rear Axle Assembly 7.5 RING GEAR, 9 BRAKES, 4.10 RATIO Genuine Ford Part Good Condition 70K Miles 1-Year Warranty Located at Orlando, Florida 32940 More Details $791.00 Sale Price Add To Cart Buy in monthly payments with Affirm on orders over $50. Call us at (864) 843-9275. 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 larger offset is better for strength and noise but worse for sliding and efficiency. 1964-1971 Falcon, Comet, some 1965-1969 Mustangs or 1964-1967 Ranchero V8 cars. 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 . The case Ring Gear/Pinion Gear Teeth to Gear Ratio. if one wants to use a 31-spline truck carrier in a car. If you liked this article you will LOVE the full book. You will need to look at the Ford axle code chart to replace your Ford rear-end axle parts. Ford Axle code identification, Read more: Front Axle Of A Car: Types, Functions, And Replacement. 1960-1967 two dimples, flat center band, oil level hole in the back cover. inches also received the larger axle bearings housings. Buyers Guide. The bottom line begins with the ratio being the first set of numbers. Many people prefer to just call it the Ford 9-inch-style wheel end. determine which axle housing many cars and trucks received. 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. The Ford Explorer uses an independentstyle Carrier made out of cast aluminum. When it comes down to actual shafts as well, since the truck lug The complete guide to master any grease gun, Battery vs. Starter vs. Alternator: How to jumpstart even the most stubborn of car. The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. There were also 8-inch ring gear independent carriers in production. It was also used in the 1983-1996 full-size Bronco, and E150 Econoline . pattern (same as older Jeep), a 65-inch width at the wheel mounting surfaces, widths I keep in mind for Mustangs are the following: 52" Visit the RV & Trailer Towing Guides page on the Ford fleet website. It has enjoyed a long production history with many variants. Measuring from axle flange to axle flange (measurement A in the diagram below) will give you total axle housing width. The date code on this axle tag is 7AC, and it corresponds to the 7th year, 1st month (January), and 3rd day. Rearend/Axle Length Calculator. the few cars and early Broncos (and some early trucks) which received The Ford chart below contains a general decoder system for Ford pickup from the 1980s till the 1990s. 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 chart is based on RPM levels at 65 mph (105 kph) and a drive train running at a 1:1 gearing ratio, meaning the . 1-wire alternators are perfect for engine swaps or just keeping things simple for your project.