ford 9 inch rear end gear ratios chart

Gear ratios depend on the year and model of the Ford vehicle. The other identification information, 9, as observed from the chart, indicates a 3.55 gear ratio of the Ford F-150. Multiply that number by … There are 4 different sets of rear axles that would have come stock in 66-77 Broncos. For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio. Width: all measurements are flange to flange 67-71 Comet, Cougar, Mustang, Fairlane = 59.25 inches 65-66 Mustang = 57.25 inches 67-70 Mustang = 59.25 inches Rear Axles Used: Ford 7.5-Inch Axle: ... From the example above, you can see that the lower line shows the gear ratio, and axle diameter. There is a gear ratio stamped on the tag. The 351 and 400 engined cars that I have seen used the other rear axle, none the nine inch. Axle code. The chart below may be of some help in deciding what rear end ratio is right for you. Listed are the expected RPM's at 60 MPH with a given rear end ratio and tire height. This chart applies to all Ford non-overdirve transmissions, manual and automatic. Power is transmitted from the transmission to rear end 1:1 in high gear. This type of ratio is referred to as non-hunting because any given pinion tooth always contacts the same three-ring gear teeth per revolution. 4. If it goes about 3 1/2 times then you probably have about a 3.50, if it goes almost 4 times around then you have a 3.90 etc. 1957-1959 Ranchero and station wagon. 9 Inch Ford rear differential. The pinion would just barely fit through the hole in the case. The same applies to vehicles with codes containing numbers alone. 2.50 open differential. ... ‹ Back to VIN Tag Decoding: 1973-1979 Ford Truck Rear Axle Codes : Axle Code The first two digits of the axle code identify the ratio and capacity of the rear axle. The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. Axles were similar to the Ford 9-inch 28-spline units. Not all gear ratios are available so you have the choice between 4.88 and 5.13, 4.88 being the closest. View our Top Ten 1969 Mustang photos. The gear ratio of each overdrive gear of your transmission. 3.73’s are available from the factory depending on package options. (CROSS SECTION WIDTH x 0.ASPECT RATIO x 2 ÷ 25.4) + WHEEL DIAMETER = OVERALL TIRE DIAMETER. Count the bolts on the rear-end housing, and visually identify the rear-end gasket shape; compare the gasket shape with the chart found on the Drivetrain site (see References section). 1971-1973 Mustang 61.25 inches. Gear Ratios - RPM from Speed, Rear & Trans. Power is transmitted from the transmission to rear end 1:1 in high gear. In today’s high-performance applications, however, there’s rarely a single Ford-built part in a 9-inch rear end. The Axle Ratio is stamped on a Gear Ratio Tag on the axle cover. Calculating the torque multiplication that your axle gears provide is quite easy. Get it as soon as Wed, Apr 20. Ford attached an aluminum tag to one of the carrier bolts at the factory to aid in determining the gear ratio and build date of the 9-inch rear. Show some Mustangs from 1969. More Buying Choices. Most of the versailles had gear ratios for freeway cruizing but the 9's are easy to change. Count the times your driveshaft revolves per one complete wheel revolution as you rotate the back wheel towards the car’s front. ...Keep your front tires from moving by putting a block in front of them.Lift the truck’s back end so that the back tires are above ground level.Place the vehicle in neutral while it is lifted off the ground.More items... Nine Inch Rear Axle 66-71 Fairlanes, Torinos, Montegos, Comets, and other Ford intermediates with big blocks. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear … Original gear ratios range between 2.79:1 and 5.43:1, and aftermarket replacement gears are available for many ratios as well. 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. 9310 Alloy Steel. Applications: Ford Used The Dana 70 And Dana 70HD Axles In F-350 Trucks Up To 1985.5. 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. 9" axles are good axles, the only downfall is the low slung pinon can make some extreame drive shaft angles in a short coupled Jeep. The very rare optional 6 cylinder rear was the 3.50. Ratios for every need, whether it's for street, highway, circle track or towing. Item #: F9-325-YG Yukon Gear. How to use the chart. GM B-Body Complete 9" Rear End Packages. GM A-Body Complete 9" Rear End Packages. The original applications are as follows: 1. also the granada-monarch versailles front disc's aare a bolt on. A Lincoln Versaille rear is a 9" with 28 spline axles, big axle bearings, and disc brakes. Details: Competition Use Only Gear Sets. So rare Ford dropped it after 66, when they also dropped the 7" Equalock™. 1966-1977 Bronco 58 inches 5-on-5 1/2 inch diameter bolt circle. 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. It may not be a stock or original Ford 9 inch rear end, but it carries the original’s dimensions and specs and for all intents and purposes they are still considered a Ford 9 inch. GM F-Body Complete 9" Rear End Packages. Apr 1, 2010. Only show this user. Automatic Locking Differentials ... 1957-1983 | Ford F-100 1968-1987 | Ford F-150 1966-1986 | Ford Bronco. yes they have to match to be used correctly. I've heard of having 4:11 on the rear with 4:10 on the front,thats ok but something like a 4:11 raer and 3:73 front wont work.....well not without destroying something. ... How To Identify 9 Inch Ford Housings Chart via Speedway Motors. All the Galaxies I have seen from throughout the 1960’s used the 9-inch rear, regardless of engine size. 100 x 4.12. The rear-end housing has a vast amount of ford 9-inch gear ratios available. I suspect that Lincolns might have been the same. 1967-1970 Mustang 59.25 inches. I cannot say for ratios after 1978, I quit looking after I found what I needed so I don't know much after that date of manufacture. The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. Call us at (864) 843-9275. The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. The heat treated aluminum alloy well suited to absorb high impact shock loads. 8 specifications: • rg diameter 8.875" • 8 7/16" x 20 rh threaded bolts • pinion diameter 1.625" 28 splines • cases:2.73 & numerically lower Then the formula would be calculated as: (38*3.91)/30 giving you 4.95. There are two rows of numbers on the tag. FORD FINAL DRIVE RATIOS. Using the chart below, we know that this axle is a 7.5-Inch axle with a 4.10 limited slip. This chart applies to all Ford non-overdirve transmissions, manual and automatic. Another option for a TJ is using an 8.8 out of a late model Ford Explorer. On the other end, you can get a kit like RuffStuff Specialties' 9" disc conversion. 429 motor tow package, 9 inch rear end 15,000 miles and 2 door Original miles 15,000 All original parts. The aftermarket has responded to this by offering a plethora of ratios ranging from 2.91 to 6.50:1. For example: The tag will say: 350 for 3.50:1 ring and pinion gear ratio. yukon Gear Ring and Pinion for Ford 9", F9-325-YG, YG F9-325, f9-. To recognize a Locking 9" differential, look for a metal tag on one of the bolts that holds the center section to the housing. Ford 9.75". 1968. Our expert customer support technicians are available Monday through Friday from 7:00 a.m. until 7:00 p.m., CST. Limited-Slip Differentials. Explore all of our Ford 9 inch Third Member products online today. For instance, if both the engine and transmission deliver up to 100 ft./lbs. i.e. In some cases both an 'A' and a 'B' prefix part number are shown for a particular gear set. 57.25 inches. 0. We carry everything from the 8" IFS front end parts, to the large 10.5" rear end parts for F-Series trucks.We make it easy to verify your exact rear end by providing specs and year, make, and model applications for each … People have been climbing around scrap yards … *** … The gears and the carrier have proven to be significantly stronger than the 10 and 12-bolt Chevrolet, which use smaller 8-1/2” and 8-7/8” diameter ring gears, respectively. NOTE: These width dimensions were measured with 1940 style brakes. Most 9" rear differentials will be the open type. Ford 10.25"/10.5" (Sterling) GM 55-64 Car (55P) GM 7.5" & 7.625" 10 Bolt. This is 2.25 inches for the Ford 9-inch and 1.5 inches for the 8.8-inch axle. 1967 Fairlane 63.50 inches coil springs. 1965-1973 | Ford Mustang 1965-1973 | Mercury Cougar. The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to … This weld-on disc brake kit will go on any Ford 9" with 3.5" OD axle tubes. 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. 1970. FORD FINAL DRIVE RATIOS. You can do this by multiplying by the gear ratio. Non-Hunting Ratio. GM Chevy S10 82-04 Complete 9" Rear End Package. If there is an "L" in between, you should have a locking or limited slip … Selecting the Best Gear Ratio One of the primary reasons why the 9" Ford rear end has come to dominate drag racing is the ease with which thirdmembers with various ring & pinion gear ratios can be installed. While you do this count the number of revolutions on the drive shaft. There are a few exceptions that you will see in the Ford Axle code chart. Ford 7.5s and 8.8s have 10 bolts, the 10.25 has 12 and all Dana units have 10 bolts, but each has a different gasket shape. Axles Tubes Are 4-Inches. USD 321.93 321.93 1 321.93. 2021 Ford Bronco. 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. What does the Rear Differential do? GM G-body 78-87 Complete 9" Rear End Package. Divide that number by 60. The first table is the code and gear ratio. Besides producing car, Ford also creates its own gear. This is often referred to ring and pinion ratio. 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. Like the H in our case shows a car with a limited-slip differential. 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.

Miller Creek School District Salary Schedule, What Grade Is Ferran From The Royalty Family, Nutcracker Drink Recipe Nyc, Kathy Hilton Be Kind Straw Bag, Platinum Jubilee Wishes, Jackson Purchase Energy Power Outage Map, Witcher 3 How To Use Magic Lamp Switch, Short Hairstyles For Thick Fine Hair, Lima Rapid Covid Test, Average Shoe Size For 5'10 Male, Russian Plane Crash May 5, 2019 Victims Names, Americus, Ga Arrests 2021, Tennessee Tech Head Football Coach Salary, Guidelines To Moderator In Osce,