Rear differential gear ratio chart

10:1 rear gear would be 10. 56 seems like the ticket for the 5 speed manual V6 combo with 32-33" tires. 1969. Here’s a comprehensive go-kart gear ratio chart that accounts for the most common sprocket sizes. The gear ratio codes are located on the front passenger side of the differential as shown in the illustration below. Aug 7, 2015 · When we are talking about these ratios in numbers, we commonly will say 3. Changing Your Truck’s Rear Differential Gear Ratio. With G80 = with limited slip, no G80 = without limited slip. Rear Axle Assembly Codes. Find the two-digit code under "AXLE. OR. So from that example, we can see that the tag above is a 7. P. 1957-58 are 29-spline and 1959-1964 are 31 spline. 24" tires will match factory ratios for 4. This is also sometimes referred to as the final-drive ratio since it’s the last gear that must turn before power hits the pavement. For instance, the 3. Use our gear ratio calculator to find the correct gear ratio 2 days ago · This page is a Differential Gear Ratio Chart for comparing tire size to axle gear ratio and the combined effect on power and fuel economy. Sep 23, 2018 · Another chart on the same page shows common rear axle widths. The rear axle ratio may be determined by finding the two- or three-letter serial number prefix in the following table. "Rears up through 57 only had a round disc to identify ratio (regardless of posi or non-posi) with a single hole for attachment. 15s, whereas other owners may want quicker acceleration above all, which could mean 4. Sep 29, 2021 · The two most common codes in the CTS are GU5 (3. 2D reg-duty / 4D med-duty 4-pinion. These numbers indicate your gear ratio. You can also now calculate when using different transmission gear ratios, like in first gear or in overdrive. REAR DIFFERENTIAL GEAR OIL Recommended gear oil: GL–5 (75W–90) or equivalent CAUTION: Each oil manufacturer has its base oil and addi-tives. Imperial. Could someone please post the axle code chart HO4. Solve For. The only way it wouldn't be there is if someone already changed the gears and didn't replace the tag. Nov 3, 2023 · Common axle ratio variants in Ford F150. The rear end axle is responsible for transmitting power to the rear Rear End Gear Ratio Calculator. 56:1 - Tooth Combination 41,16 Ratio 2. The speed you want to drive at, usually 75mph. Sep 23, 2006 · 41/14. They have a 3. Changing the rear gear ratio to 3. May 3, 2024 · The Tire Size and Gear Ratio Chart. Metric. Some Mustang owners may be more concerned with gas mileage, resulting in something like 3. Update: Added a new tab to easily compare differential ratios in top gear. Vehicle speed in MPH. Aug 26, 2015 · Put a chalk mark on the top of the tire and the top of the drive shaft. 16:1, which is not realistic. Enter the Speed (MPH) OR. 2 inch, and 8. 08 GV4 Rear Axle 3. 10s. Tagged Under : differential, drivetrain, gear ratios, ratio. Multiply that number by any speed, 50, 60, 75 etc. Differential fluid should be changed every 30,000 miles. Using the calculator, we inputted a much lower rear gear, one that matches up better with the higher rpm capabilities of modern engines like GM LS and LT V8s, the Ford Modular and Coyote V8s, and Gen III/IV Hemi engines. To locate the axle ratio after you have found the axle code: Jan 27, 2020 · Gear Ratio Calculator. The fourth is for ring gear information. Spin the ring gear by hand until you locate the numbers stamped onto the ring gear. Figure 1. 07 GX3 Transaxle Jul 2, 1998 · 3. 41 ratio GM8-2. Our parts experts can also help you with identification with year, make and model information. Aug 24, 2014 · 21343 posts · Joined 2013. 08 gears. Jan 3, 2024 · Using the Ford Axle Code Chart. ZE reg-duty / 4E med-duty 4-pinion. 73 GW6 Rear Axle 3. 56; 4. 29 ratio GU1-2. 6 rear end was offered only in a 4. Once you’ve determined the optimal axle ratio for your new larger tire setup, you’ll need to change out the ring and pinion gears in the differential to actually achieve that new The standard axle ratio found in a GMC truck or SUV has been carefully selected according to the vehicle’s specific body style and engine in order to provide the best all-around mix of performance, towing strength, and efficiency. 42:1 ratio included on many Canyon V-6 and Sierra 1500 models offers a good all-around blend. 263 1. The 2. Variants of Ford F150s have been built with varying axle ratios depending on the model year, engine size, or intended use. From the example above, you can see that the lower line shows the gear ratio, and axle diameter. 92 turns of the drive shaft, or pinion gear, the wheels will turn one time. Apr 24, 2008 · SuB8HaVeN. 54 (USA), 3. For example: The tag will say: 350 for 3. Occasionally an “F” or “H” prefix will be used when referring to Axle Identification. 5E med-duty 4-pinion. Use the online calculator or follow the formulas and examples provided on this web page. These are 3. 45 rear gears DID NOT come in the 1985-1986 SVO. Enter your tire diameter, RPM, MPH or gear ratio and get the solution for your vehicle speed or gear ratio. Apr 8, 2009 · 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - 1980-1986 axle code chart needed - I have been looking at a few 1980's trucks for sale around here, but am often unable to determine the axle ratio and weight rating. being that u r 2. Salvage yards are asking between $500 Differential Identification is the first and most important step in any differential repair or ratio change. Common Name. 13 gears. Ring-and-pinion selection made easy! Save yourself the headache and let us figure out your ring-and-pinion gear ratio! Just type in your info (example: 5000 RPM), press calculate, and you’ll get the right ratio without the guesswork. Aug 31, 2022 · Most 9" rear differentials will be the "open" type. Count the number of times the drive shaft spins to one revolution of the tire. 6 differential is known to fail even on stock power levels. Enter the Motor RPM. 8 or 0. 825 81-83 RX7 3. $64. I searched a couple times, but found nothing. Performance gains: quicker off-the-line acceleration. 002 1. Good, used 12-bolt differentials in the classified ads in a recent Hemmings Motor News ran between $800 and $2,000, with the higher-priced differentials having the correct date coding and proper gear ratio for Camaro and Corvette restorations. 40/13. Applicable years: all. May 16, 2016 · Step 3: Remove the rear cover and allow the oil to drain. The chart calculates vehicle speeds based on the gear ratio, final drive ratio, and tire size. Click on Calculate Differential Gear Ratio. 00 . Find the correct gear ratio for your ring and pinion gear set with this simple tool. 9″ = 1. 3" Axle (the ring gear is 9. 5/7. 10 GW9 Rear Axle (GU3) 2. This means that it is a Limited Slip axle. Aug 22, 2017 · A good gear ratio for the AW4 automatic running 35-inch tires is 4. 3 inches). Here sits an XJ with 35-inch tires. In fact, to find the front axle ratio you need the codes off the axle itself, as shown here: Differential gear ratio represents the number of times the driveshaft will rotate for each turn of the wheels. Enter the Differential Ratio. 6-inch units. What we mean by this is that for every 3. Careful differential identification will help make sure you get the right parts for the job the first time. Enter the required Overall Width, Pinion Offset (location), Brake Space, and Drum/Rotor thickness to find axle length and housing width. 73:1. Go to: Differential Tags The silver placard will be labeled “Service Parts Identification” and includes a bunch of three-digit codes. 625 inch, 8. Car in neutral (block the other wheels all around to ensure the car can't roll!). In the example to the left, 37 ÷ 12 = 3. The tag above is a 8. 56:1 or 4. 4" rear diff. These complete, ready-to-install rear axle assemblies can run about $3,200, depending on the options you choose. You can double check with a spin test, and also count the gear teeth. #11 · Apr 25, 2008. This chart applies to all Ford non-overdirve transmissions, manual and automatic. 10:1 would be much better. We cannot use casting numbers for identification. Oct 13, 2023 · Put the tranny in neutral, transfer case in 2H, e-brake off (if is the rear axle you are testing) and put a chalk mark on the driveshaft and on the tire. #2 · Jul 19, 2011. There is also a gear ratio stamped on the tag. 11. If you can’t find a stamping or it is unreadable. Jul 19, 2011 · 12953 posts · Joined 2007. Gear Ratio Chart. 862 77-78 RX3SP, 4, Cosmo 3. 2291 posts · Joined 2006. One of those ways is seeing what RPM your truck is at while doing 70mph. Tip: It's best to seek out the help of an experienced technician when changing the rearend gears. HO6. Yukon Gear makes aftermarket ring and pinion sets for the Toyota 8. 08 = 3. Or, change input variables (engine RPM, axle gear ratio and tire height) to determine vehicle speed in each forward gear. 73 ratio the "L" will mean it has a locker of some sorts). 11 GV8 Rear Axle 2. these trucks had 3. The rear end axle is responsible for transmitting power to the rear Enter the following values. 37. The formula for determining an appropriate gear ratio is fairly simple. Divide that number by 60. Enter the tire size diameter and the target vehicle speed in MPH. 31, 3. There is a plate or stamp on the rear diff that will tell you what the rear gear is. Also some Nov 15, 2023 · THE MOST COMMON GEAR RATIOS: 3. 90 and 3. 0. 42 3. 88:1 gear. 90:1 & up. Jan 12, 2024 · Check The Rear Axle Tag; Count The Teeth On The Gears. 55, 3. Mobil 1 104361 75W-90 Synthetic Gear Lube - 1 Quart (Pack of 2) $29. 2007 KC, 4. 27 GW8 Rear Axle 4. This is a gear ratio calculator designed to help our customers decide on the best transmission and differential choice for their purposes. Power is transmitted from the transmission to rear end 1:1 in high gear. Turn the raised wheel (it should turn fairly easily) and count the number of turns of the Mar 28, 2024 · The number of times the driveshaft rotates for each rear wheel rotation is your Mustang’s rear gear ratio. 21, 3. 31 and 3. 08 gears usually come in 7. 3. 791 79-80 RX7 3. 23:1) and GU6 (3. 08 ratio GU5-3. Available Options: 4. 00 as this is the typical 4th gear ratio of most 4 sp and 5 sp manual transmissions. May 28, 2019 · *1979-1993: The 3. 168:1. Take a look: Apr 11, 2023 · Jeep Gladiator Axle and Gear Ratios By Trim Level 2023 GLADIATOR SPORT 4X4. Scroll through the list of popular transmissions to find yours. 88's would need 33"+ tires to match factory ratios. Gear Ratio Calculator. Pick the tire hiegth, pick your gear ratio. 73:1 - Tooth Combination 41,15 Ratio 3. 63. 70 GX2 Rear Axle 3. Exterior Door Handle Set, Front Left & Right - Compatible with 1995-2004 Toyota Tacoma, 2004-2012 Hilux - Metal - OEM 69220-35020, 69210-35020, 79345, 91318, 79344, 91319, TO1311117, TO1310117. 91 are close enough they they can work Use this calculator to determine your gear ratio and vehicle’s speed in any gear and any engine RPM for best performance. The teeth numbers for the ring and pinion gears were stamped, and in time they could become faded and no longer visible. Dec 2, 2011 · However, determining the rear differential ratio is fairly easy. Now turn the tire in the air through 2 full revolutions, while counting the revolutions that the driveshaft makes. Then click on when finished. 380 2. 11:1. Owners typically want to know the gear ratio of their differential. 8 3L73 would be an 8. Enter Potential Maximum Safe Engine RPM. The manual turbo coupes came with 3. For the Tire Height field, enter This calculator are designed to give the approximate differential gear ratio based on data entered. Divide the New Tire Height (measured in inches or CM) by the Old Tire Height, then Multiply by the Original Gear Ratio: New Tire Height / Original Tire Height X Original Ratio = Return to Stock Ratio. 73 rear gears. 10; 4. The second and third are for the production period and the models where it is installed. 097 X 3. 5 tires. These codes are arranged in alphanumeric order. Apr 30, 2020 · Wow, look at those gear ratios in that 9 speed. Listed below are gear ratios for the BRZ / FRS Transmissions. Enter the # of Pinion Gear teeth and the # of Ring Gear teeth to find the gear ratio. The 1962-63 serial numbers are located on the front, right side of the differential carrier. Part of the reason we recommend 4. The 1. 56 GW4 Rear Axle 3. Dec 13, 2023 · Each letter and number in the rear axle code has a specific meaning, allowing you to extract valuable information about your axle. It lists all the known axle codes for various Ford models, allowing you to match the code found on your vehicle with the corresponding differential information. Jun 9, 2003 · Fill in your values by double clicking on "number". No one is making new 31-spline side gears at this time, which is not good. In fact, to find the front axle ratio you need the codes off the axle itself, as shown here: Apr 11, 2017 · This leads me to think that 3. The 1964 serial numbers are found on the bottom of the Email us: sales@jackstransmissions. 5 inch axle with 3. Richmond Gear calls the 57-64 Olds/Pontiac rear a GM 9. 27 rear gears also came in the non-turbo, four cylinder engines with a 7. 73. 93 GX1 Rear Axle 3. 2. 07, and 2. Also look for the G80 code, which indicates a limited slip differential. Tinware: ring and set, differential fluid. 0, auto. 55 rear gears, but the automatic turbo coupes came with 3. 73 Axle Ratio. 55; 4 times is 4. Enter Tire Size Diameter. 31 times for each wheel rotation. Filed Under ( Drivetrain) by ghost_22_47 on 15-01-2012. One was an hd optioned truck (stiffer front springs,7 leaf rear,bigger brakes etc. Mark the raised wheel and the propeller shaft with a line (chalk, crayon, etc). Check Compare and enter alternate Tire Diameter or Diff Ratio. The tag should have a number that indicates its location, such as 3. 72 GV9 Rear Axle 4. The Spicer Gear Ratio Calculator will assist you in determining the ratio between the ring gear and pinion gear in the differential housing in the rear end axle of a vehicle. Most of us are familiar with the notion that rear-axle gears largely affect your This page is a Differential Gear Ratio Chart for comparing tire size to axle gear ratio and the combined effect on power and fuel economy. . Grand Prix. Enter Desired Target MPH. 5" rear diff. 73 gears, but there is a ‘L’ between the ‘3’ and the ’73’. Sep 20, 2019 · Here's a spreadsheet I built to calculate gear ratio, tire size, speed, etc. 73, 3. Ring & pinion gear ratio. As seen below, there are only 4 codes (2 - 5) and they do not define the axle ratio nor capacity. This chart provides values that represent a 1:1 ratio on a manual transmission. 2L I6 T176 (restoration in progress) 1961 Willys 4x4 Wagon L-226 I6 T90 (restoration also in progress) Like. 73 5th gears are the most common in the popular transmission kits. 56 ratio GU2-2. Even if that's not the case 3. ) Engine RPM Transmission gear ratio. Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. View all guides. Do you know if there is any available differential with correct gear ratio that would be a suitable choice? Enter the maximum potential safe engine RPM. To do another, click the Clear Values button and then enter a new set of values. It must jump off the line in first gear and in 7,8,9 it would do a lot of shifting in normal driving. Common axle ratios that came from the factory on Dodge Ram trucks are 3. 07 diff (same ratio in front and rear differential). On-Road Calculators. Heavy-Duty This engineering tutorial explores the concept of Differential Gear Ratio and its associated calculations and formulas. To recognize a locking or limited slip 9" differential, look for a metal tag on one of the bolts that holds the center section to the housing. Then you can always count all the teeth on the pinion & ring gears. 92:1 or simply just 3. The prefix for GM RPO codes relevant to Axle Identification is almost always “G”. This gear ratio and tire diameter chart is meant to give you an approximation of ideal RPMs at highway speed (65 mph) for three situations: fuel economy, every day driving and increased towing power. (1) Identification (1) Identification (1) Identification (1) DI-00502 (1) DI-00983 (1) DI-00984 (1) Item (2) Rear differential gear oil (3) API classification Gear Ratios. Whoa whoa whoa, back up. 08 was super popular in 80's due to cafe regulations saying that a certain number of vehicles had to meet mpg rules. 2000 - 2002 Front Axle Model Designation changes. Calculate the Ring and pinion Teeth. 8 inch Ford rearend with 3. Oct 28, 2022 · The tag attached to the differential cover can be used to determine your actual gear ratio. Our comprehensive Ford axle code chart is a valuable resource for decoding axle codes. 10 if ext and maybe a 3. 08:1 - Tooth Combination 40,13 Ratio 3. Understanding Rear Gear Ratios. Enter the maximum potential safe engine RPM. 56 with 32. If your Jeep has the AX-15 automatic you’ll want around a 4. The remaining numbers provide additional details about the axle’s construction. look at the rpo codes in the glove box to confirm your ratio. 31, the driveshaft rotates 3. 73 gears. 08 gears, which is perfect for an X-15 Cummins running in double Mar 1, 2015 · Products Discussed in. 217 1. 88 I feel would reduce acceleration too much, and coupled with a 5 speed would be too tall gearing. Stock Transmission Ratios Application 1st 2nd 3rd 4th 5th 6th 74-76 RX2, 3, 4, Cosmo, P/U 3. Then, divide the number of ring teeth by the number of gear teeth. Transmission and Differential Ratio Charts PDF. 93 is suited for higher horsepower builds or street cruisers that desire a higher top speed with The Axle Ratio is stamped on a Gear Ratio Tag on the axle cover. 168 / 4. 88. Right down that RPM number. 5in 10 bolt axle G89-7. 87. Rear Axle Ratios Ratio 2. In fifth gear at 2,200 rpm you’re already going 76 mph. Dana Spicer and Ford Differentials can be identified most accurately by the tag number or axle tube stamp. 97 to get a more accurate reading. 30:1 ratio - that's it for the 6" ring gear size, theres no known alternative ratios that came out of the Mazda factory however the was apparently a 4. CSGNetwork. 08:1 to 3. Raise one rear wheel. List of all transmission gear and final drive ratios for all models of the BMW 46. 2 days ago · This gear ratio calculator determines the mechanical advantage a two-gear setup produces in a machine. 73 as well as my 82 4wd. 31 GW5 Rear Axle 2. If you are unable to find the GM RPO Codes Label, a GM dealership can usually tell you what you have using the VIN number of your vehicle. 36 GV5 Rear Axle 3. There is also a metal tag tells the gear ratio in the axle. Generally, a longer ratio such as a 2. We delve into the relevant fields of physics and provide explanations and examples of real-life applications in various industries. 56 with my current 30. This calculator will provide the speed of the vehicle based on transmission gear ratio, engine RPM, tire height, and the ring gear and pinion gear ratio in the rear end axle differential housing. 10:1 gear ratio the drive shaft turns 4. 56 GW3 Rear Axle 2. Calculated May 10, 2022 · By Michael O'Connor | May 10, 2022. 397 1. 92. Feb 2, 2000 · This tag will show what size axle and what ratio you have installed, (example;8. Most differentials nowadays will have a sticker on the outside with axle ratio information. Heavy-Duty Dana® 44 Rear Axle . Enter the number of teeth for the following gears. 10's and 28. Please note that the ring-and-pinion gears can be switched as long as the carrier has the right gear size. Commonly, we encounter axle ratios like 3. 875 after market set. 4. To find the axle code: 1. Printable Full Scale Degree Wheels Dial in your cam. Listed are the expected RPM's at 60 MPH with a given rear end ratio and tire height. The 3. "Hy-Tuff" axles are available for it from Moser and Mark Williams in any length (needed to Jul 19, 2011 · 12953 posts · Joined 2007. Step 4: Find the numbers on the ring gear. Heavy-Duty Dana® 44 Wide Front Axle. Browse Local Truck Listings. depending on how your vehicle is equipt depends on the ratio. 5D med-duty 4-pinion. EDB30174. 10 Axle Ratio. View the Safety Compliance Certification Label on the driver's side, front or rear door panel. 10. The chart below may be of some help in deciding what rear end ratio is right for you. This information can be found on the rear end tag or in the vehicle’s service manual. #2 · Aug 24, 2014. Gearing Calculator. If you have a rear gear ratio of 3. Additionally, we highlight key individuals in the discipline and present interesting facts related to the topic. Ring gear Pinion gear. An example would be if the ring gear has 37 teeth and the pinion gear has nine teeth, the gear ratio will be 4. 5in 10 bolt axle Jun 4, 2024 · Use this calculator to crunch the numbers and figure out which rear gears would be best for your Mustang’s rear axle. The gear ratio gives us an idea of how much an output gear is sped up or slowed down or how much torque is lost or gained in a system. 42, and 3. Thus, do not mix two or more brands. About this Engine RPM / Tire Size chart: 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 Generally tires squat about 3%. Dec 13, 2023 · Best diff gear ratio for sbcHow to find gear ratio on chevy silverado Gear ratio speed 700r4 differential rpm tire stall gearing converter engine range chevy power v8 ideally diam cam select putRatio gear chart tire size differential rear jeep parts gif tires gears photobucket albums 4x4 got just now wrangler man. 50:1 ring and pinion gear ratio. We equipped this calculator with the gear ratio equation and the gear reduction equation so you can quickly Jan 30, 2018 · Click here for a PDF of Transmisson and Differential Ratio Charts. But 10. If you are measuring your tire, measure from flat ground up to the center of the hub and multiply that number by 2. Join us to discover how the Sep 4, 2006 · 1956 and back have 10-spline axles. The value will be returned in estimated differential gear ratio, based on the entered values. Example: If the drive shaft spins 3. Easy to use gear ratio calculator. See also Cracking the Code: Dodge Ram Wire Color Secrets Unveiled Step 1 - Locate the Axle Code. 10 gears. Chrysler Dodge differential gasket patterns can help you indentiy what rear end you have. It's probably the same number of teeth on the gears, but with the ratio number rounded off differently. 90 ratio available. 25 GW2 Rear Axle 2. Next is a list of speeds vs RPM running low pro 22. 10; 3 and 3/4 times is Nov 19, 2013 · Edit: I might as well add this chart to the thread too. Here is a list of ratios and drivetrain information, feel free to add or correct anything by leaving a comment. 73 if stnd cab. Gear Ratios - 6" ring gear The 1990-93 1. 55; 4. 08:1 - Tooth Combination 37,12 Ratio 3. 31:1 - Tooth Combination 43,13 Ratio 3. 73 ratio G80-limited slip differential G87-8. Rearend/Axle Length Calculator. You can see the “91” for a 3:91 gear ratio in this unit. 70 (to determine the equivalent rear-gear ratio) equals 2. Speedometer will display a second needle for the comparison. The number of which will be equal to your gear ratio. 10 in F150 models. Both my pre 80's 2wd (76-78) were 3. 73:1 or 4. 56:1 gears for the 33-inch tires is because they also work well with 35-inch tires. 1986 Jeep CJ7 4. 07 all provide good options. Mar 18, 2012 · I’m having a W211 E500 4-matic from 2004 with 722. The number of driveshaft rotation points will aid in the determination of your rear axle ratio. 08 3. I would like to change my rear differential to a bigger one and stronger drive shafts. 55 GV7 Rear Axle 4. 88; G2 Axle Gear on a Jeep Wrangler with 37″ Tires. Heres mine an "03" code shows as 4. Edit gear ratios, or enter (and save) multiple ratio sets, then click Compare Ratios to display multiple graphs and compare ratios. Mar 20, 2018 · Above left: In an 8 ¾ rear axle the gears are all contained in a center unit unlike the Dana 60 unit. 08 rear gears also came in the 1993 Cobra. :1. Usually it has the 489 case and the date code is cast into the side of the case. This chart shows the gear ratio for engine sprocket sizes from 8 – 20 teeth and axle sprocket sizes from 50 – 110 teeth. There are only 4 basic ratios for a GM 10-bolt rear end – 2. These new transmissions shift so smooth and fast you probably don't even notice. 29" tires. 54 or 3. Axle Rear. Write down that number. Axle ratio or rear end gear ratio is calculated by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear. 672 gearbox and 3. 36:1 - Tooth Combination 37,11 Jan 6, 2020 · Again, the overall first-gear ratio with the TH400 and 4. Changing to a taller or shorter final drive ratio can customize your overall gear ratios, specific to your application. So if you have a 4. Of course, if your limited slip diff has failed, the open diff is less prone to failure, so keeping the gear ratio and going without might Jan 26, 2014 · The most common E-Type differential ratios were 3. 61" tires will have me running 3K at 70mph (doable). Example: 35″ / 31. 683 2. 07:1 - Tooth Combination 43,14 Ratio 3. 73 or 4. 390 1. com. Apr 14, 2021 · JimSerra. Purchasing Redline 75W-90 Synthetic Gear Oil is recommended. Rear ends with 3. Now you can determine what fingal gear ratio you need for your average driving and speed. If you ran 4. Step 5: Clean the cover mounting gasket on the cover and the housing. You could count the number of teeth on the ring gear and then divide that number by the number of teeth on the pinion gear. You can simply drop the rear cover and count the teeth on the pinion and on the ring. 4x4, M200 diff. Jun 13, 2019 · Check your vin sticker, get gear code, and thats the ratio. 92, and 4. " Rear End Gear Ratio Calculator. 10 gears, in 4th gear you would need to turn 2400-2500RPM to do 60mph, and about 2600-2700RPM to do 65mph. Jun 1, 2024 · The gear ratio of each overdrive gear of your transmission. 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. How to use the chart. 10 times for every turn of the wheel. Put the transmission in neutral and spin the rear wheels. 10:1 gear ratio. 07; 3. #5 · Jan 14, 2018. Cost: $250-300. 73 ratio GU4-3. 14 ratio GH2-2. The yellow colored cells are how to control the inputs (either drop-down or number fillable), all other cells are un-editable. About this Engine RPM / Tire Size chart: 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 To find the gear ratio, divide the big number by the little number. " Step 2 - Find the Axle Ratio. 8 inch axle, and also has 3. 5 times to one tire revolution, the ratio would be close to 3. If you are using the calculated diameter, multiply that number by . Find the word "AXLE" under the bar code. 083333. And the final fifth column of the Jeep Axle Identification Chart is for all other important details. The stamped numbers on the left or right axle tube can also identify the axle. This code will tell you the ratio, whether it is posi or Jan 12, 2018 · 10 posts · Joined 2017. We call them G codes…look for G80, GT3, etc. 08, 3. Ring & pinion gear ratio Tire height (in. This gear ratio calculation is used by our diff gear calculator. 42:1). Using a JeepHut chart, you can determine which gear is best for your Jeep. Heavy-Duty Dana® 44 Front Axle. Standard: 3. Rear End Gear Ratio Needed. Jan 12, 2024 · Learn how to calculate the best gear ratio for your car based on tire size, transmission type and cruising speed. Rear Axle 3. Ring Gear/Pinion Gear Teeth to Gear Ratio. 674 2. 23 ratio GT4-3. If you're curious how changing ratios will affect your gearing, this tool will remove the guesswork. Conventional Differential Front Axle w/ Disconnect. 12 bolt. 64 gears; 62 mph=1390 rpm, 65 mph=1450 rpm, 70 mph=1625 rpm. Understanding axle ratios is easier than you may think, and is critically important to making sure your vehicle meets your needs. There are a few ways to find your rear-end gear ratio. Conclusion: 4. 1958-1970 Chevy Rear Differential code Identification. After 57, the tags were different shapes as below. Trac-Lok® Anti-Spin Rear Differential. Of course, if your limited slip diff has failed, the open diff is less prone to failure, so keeping the gear ratio and going without might Jan 4, 2021 · The first column is for the axle model name, the number of the bolts, and the diameter. Chevy 10 Bolt Rear End Widths. This calculator includes all available transmissions and differentials that pair with Gear ratios and drivetrain info. 2 and auto i bet you have a 4. ) and still had 3. If that is not there, there are other ways of figuring it out, just search forum and you will find numerous threads on it. 47 gears; 55 mph=1200 rpm, 60 mph=1280 rpm, 65 mph=1375 rpm. 08. If you do not know this ratio, you can simply put in 1. Apr 25, 2010 · Here are some gear ratio RPO codes for looking in other vehicles for specific gear sets G72-2. 432 1. For example, the first two letters of the code indicate the axle’s size and capacity, while the third letter signifies the gear ratio. Enter the Tire Diameter (inches) OR. Gearing Analyzer with Shift Tracer. Heres a gear chart I grabbed off the net a while back, not sure where I found it. co zp cq dy bc go jq zk ag nb