The spur gear–the bigger plastic one–is more for fine tuning. I grew up around raunchy cammed NA motors with 4. A 4x4 Differential Gear Ratio Chart Table. This calc can be used to find a new gear ratio. When picking a driven/drive gear ratio to match the tire and rear axle gear ratio you have a choice of two drive gears and five driven gears. Otherwise go to Custom Cassette. Click on Calculate. I am running a 4. 73 gear will it perform good with mild street. And it doesn't matter if the car was a WS6 or regular TA, they could come with any gear ratio, unless its an auto (which didn't have 3. For motorcycles, check Sprockets and enter Primary Drive Ratio and front and rear sprocket tooth count to calculate final drive ratio. Set current entries as default on page load. Ive said it before that this is my first turbo car so im still learning the ways of the wise. 0" Ring Gear 2003, OE Solutions™ Rear Differential Ring and Pinion by Dorman®. Circle Track Gear Calculator. Center Balance. What's this for? Well you can use it to size your tires, rear axle ratio and determine shift points and all that. I've got a 99 2. How to tell what gear ratio is in your car without taking anything apart!! Calculating gear ratio on a chevy mopar ford by turning the rear wheels and counting how many times the pinion gear turns. Title: Layout 1 Created Date: 12/18/2012 2:25:25 PM. Differentials work with your transmission to deliver power from your engine to the axle that turns your wheels. Step one in understanding axle ratios is to know what the numbers signify. Gear Calculator Dealer Locator 3D GEAR DESIGN. long-time trucker. 5 out of any 2nd gen and have a better selection of gears, cheaper and way stronger. BOLT REAR AXLE DIFFERENTIAL GEAR TO CASE 7/16. Marlin Crawler is proud to be the world-leader in Yukon differential sales and installs for Toyota trucks. Ford 9” Rear Axle Information. Add to Cart. The overall demultiplication of multi stage planetary gear units is calculated by multiplying the ratios of the single. Set current entries as default on page load. Yukon products match the same high quality standards that we demand for our personal Rock Crawlers. That's why I'm asking for advice because I just literally put the tires on the truck and I may end up changing the gear ratio later (if I'm that unhappy) however I'm not in a hurry to do it. Most MoPar overdrives have a. Rear end gear installation kits from Strange Engineering. Gear ratios and compound gear ratios Working out simple gear ratios (two gears) A feature often requested in my gear program is that it should calculate and display the gear ratio. Gear Ratio Calculator This calculator is useful for planning your rig, allowing you to see what kind of performance to expect from different combinations. * Use some chalk to mark the tire with an arrow at 6 o'clock. See the chart below the table for typical ratios. Most fleets today opt for either a 3. That's pretty extreme and it winds up fast. Here are a couple helpful diagrams to for when it comes time to work on that rear end in your classic. Ford 1932-54 Transmission Gear Ratios: Both have the same forward gear tooth counts. View all applications. The value will be returned in estimated differential gear ratio, based on the entered values. The calculators provided below are a simple way to compare different gear ratios and their effect on RPM and different speeds. From 1999 to 2001 can use but did not come with it. Speedometer Drive Gear Drive gears are available in 16-21 teeth. Calculators designed for the auto enthusiast. Ford Full Size Solid Axle Bronco Stuff. The rear needs to be gone through anyway (currently 3. 00 Enter rim diameter in inches hereRim 17. 27:1 rear end gears. Any change in rear gear ratios will also require a change in speedo gearing, if you want the speedo to read correctly. That's why I'm asking for advice because I just literally put the tires on the truck and I may end up changing the gear ratio later (if I'm that unhappy) however I'm not in a hurry to do it. axel calculators, applets, animations & simulations rear axle calculator - mike cobine multimedia axle calculator. Scroll through the list of popular transmissions to find yours. FIRST DIGIT 4. richmondgear. Rear End Gear (ratio). 75 times to turn wheel once, that is fastest gear I have seen on here. 5" axle came in '70-'71 E-bodies and '71 B-bodies. Now you’ll always know with the easy to use Slide Rule Calculator. The motor was in my buddies '77 Vette with 3. For that reason we have made available for you a variety of online calculators to help you with your installation and other configurations. 2 Updated: August 1, 2004. Quickly and accurately find thousands of drivetrain parts for hundreds of fitments. Differential Gear Ratio. 1958-1966 Ford Thunderbird Rear Axle and Drive Train You are here: Home / Shop / 1958-1966 Ford Thunderbird / 1958-1966 Ford Thunderbird Rear Axle and Drive Train Sort by Default. Gear Ratio and Tire Size Chart NEXT PAGE 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. Differential Carriers Your differential transmits the power to the axle shafts while allowing the wheels to rotate at different speeds, since they travel different paths as a vehicle turns. Vander Haag's Inc has multiple midwest locations with Service Shops, Part Sales, and is a licensed Truck & Trailer Dealer. cam calculators, applets, animations & simulations piston calculators, applets, animations & simulations. Select your rear end housing in either a bare or powdercoated finish and add it to your cart. 5" 14 Bolt. A center differential controls the relative distribution of drive torque between the front and rear axles in all-wheel-drive cars. The first gear ratio is calculated the same way like the second. Complete systems front and rear, custom axle housings, big brakes and more for your pro-touring Mopar. Select your rear end housing in either a bare or powdercoated finish and add it to your cart. my rear end locked up on my 02 f150 and it has the 3. That's pretty extreme and it winds up fast. If you cannot view these PDF files: iPhone users: The Safari Web Browser must be used in order to view PDF files Smart Phone users: might need to download the free app called "Adobe Reader" or any other PDF reader app. 5T motor for drifting. It is only $25 per year and you can buy and sell whatever you like on the forum. Typical 1/2 ton both 2wd and 4wd rear axles takes over 2 qts Typical 1/2 front axle takes 3. If you can(D60 front axle) no it shouldn't mess anything up, the only reason it has 4. If you have already seen my article on how to calibrate your speedometer for new rear end gears you have probably estimated what gears you need so I won't get into that here. Our speedometer calibration calculator will get you the answer you are looking for. Cost: $250-$300. Going by the Richmond calculator, it figures your time and speed based on weight and HP, then depending on what rpm you want through the trap it gives you a gear ratio, speed and time are not effected at all by gear changes. Check and see if the rear end you have has a drain plug for removing the gear oil located on the side of the pinion carrier. Enter ALL of the sizes of your rear gear cassette (smallest to largest). Hey, you are welcome here all the time. Gearing Calculator Here is a gear calculator you may find very helpful. 70 rear end. Here is my confusion. You can find an 8. To determine your gear ratio, simply divide the rear axle sprocket by the clutch sprocket, so in the case of the above example, 60 divided by 12. CID to Liter Conversion. The value will be returned in estimated differential gear ratio, based on the entered values. Rear-End / Differential Gear Ratio Calculator. Set current entries as default on page load. I'm having a real problem finding out what gears my rear end has. Read off your mph at any rpm in any gear. We stock Eaton differentials. There are options to factor in crawlers, axle gears, and tire size. Different gear ratios can have different effects in the way a vehicle performs. rear end gear ratio???. Here are a couple helpful diagrams to for when it comes time to work on that rear end in your classic. Our product range is continually growing to meet the needs of consumers for new ratios and applications. Model A & B Ford Garage Rear Axle Gear Ratios. Speedometer Gear Teeth = (Drive Teeth * Rear End Ratio * Tire Revolutions per Mile) / 1,000. 64 rear end with a direct drive top gear. Now put your jackstands under the axle. Differential Gear Ratio. The wire-wheel rear end is 1-3/4" narrower than the disc wheel rear end - so the axle shafts are not interchangeable. The right side will show the results. But then again those machines rev really high (up to 24000 rpm) which allows even the shorter gears to reach at high speeds of 330-350 kmph. The same is true of the transmission final gear ratio. Equation and Calculators to determine Ratios of Planetary or Epicyclic Gear Assemblies. Mopar, Dodge, Chrysler, and Plymouth are registered trademarks of DiamlerChrysler. The rear axle gear ratio is the number of turns that the input of the differential at the driveshaft makes in relation to its output at the rear wheels. You can use it to try out different rear end gears and tire sizes. I'm not planning on breaking any records, I was just wondering how different rear ratios effect 1/4 mile times. Click "Calculate Differential Gear Ratio". I grew up around raunchy cammed NA motors with 4. 52 mpg and i can go on with my fuel up, my rear ends are 355 with a 10 speed auto shift i have a pre egr motor so that does help with the. Gear Selector. Divide the number of teeth of the spur gear by the number of teeth of the pinion gear. Hey, you are welcome here all the time. Dan Wolfson of DB Performance swapped in my new gears, rebuilt the Traction-Lok differential, and replaced all the bearings and seals. A Columbia rear axle overdrive would change all the regular ratios. 73:1 axle/gear ratio means the drive shaft (or pinion gear at the end of the drive shaft) rotates 3. 1969 models built after. These gears come in different ratios, which greatly affect the performance of the car. With regard to design and gear cutting, just as in straight bevel gears, the Gleason type is most widely used in spiral bevel gears. SS #670 Gear Ratio calculator Here is a cgi I wrote to do gear ratio calculations. ) Optimum rear gear based on tire, converter slip, MPH & RPM: Effective & Equivalent Gear Ratios based on New and Old tire heights and original gear. 8 Unlimited X 4x4 gear ratio calculator. Need Meritor/Rockwell Gear Set Parts? Check out 171 Meritor/Rockwell Gear Set Parts for sale. 08: 40/13: XE: ZE: 1965. Pontiac Rear End Gear Codes; Year: Model: Rear Gear: Teeth Count: Standard Code: Locking Code: 1965: GTO: 3. 76 rear axle will be 1. 10 locker in a big bearing 9 inch, c6 with a 3200 stall converter behind a 400 with 70 cj 4v heads giant voodoo cam and the works. 73 to one, 3. Mustang Rear Gear Ratios Overview. then the driveshaft speed is the engine speed divided by tranny gear ratio R1 = ( 6000 / R1) revolutions/minute, and the rear axle speed is the driveshaft speed divided by rear-end ratio R2 = ( 6000 / (R1*R2) ) revolutions per minute. 00 Profile 70. It will help you to find the best gear ratios for your racing car and to understand when it is the best time to change a gear. If you run out of gears just leave the right end boxes blank. Typically the motor rotates about 12 times for every one revolution of the axle. Example a 700R4 transmission has an overdive ratio 0. (I love it). Use this gear ratio calculator to see what ring & pinion gear ratio will be right for you after a tire size change. , 1/4" wall), new brackets, new housing ends, new bushings, and 1350 yoke. Its the weakest rear end. Pinion Angle: Pinion angle is the difference between the driveshaft angle and the pinion angle on the differential. : calculators useful for electric vehicle conversions. " Tip #2: If you have a Dana or any custom width rearend and want to run original Mopar adjustable tapered ("Set 7") wheel bearings, please call. At the hit, you’ve got a transmission gear as a multiplier and also the ring & pinion. On 4-wheel and all-wheel drive vehicles, there is a front end and rear end differential which have the same gear ratio. Gear motors can also be used on vehicles with smaller wheels if a slow top speed and a high amount of torque for uphill climbing or driving through sand or mud is required. Tyre diameter is automatically calculated. Be careful with what gear you choose and keep your driving style in mind. Calculate Gear Ratios: This program calculates the gear ratios of a motorcycle. To find your vehicle’s RPM enter your Ring and Pinion Gear Ratio, Tire Height and Speed and press "Solve". If you want long-lasting gears, use 8620 and do a proper break-in. After changing rear end gears or tire diameter you will likely need to swap one or both speedometer gears to keep the speedometer reading correct. If you don't know what the rear end ratio is in your truck it can be calculated from other info that you may know. A Columbia rear axle overdrive would change all the regular ratios. Easily find parts for ring and pinion gears, differentials, axle shafts, manual transmission parts, and transfer case parts, using our easy eCatalog. 1874: Aveling and Porter of Rochester, Kent list a crane locomotive in their catalogue fitted with their patent differential gear on the rear axle. Jack up the rear end. This calculator is designed to give you a rear end gear ratio. Premium Axles, Floater Kits, Bearings, Housing Ends, Flanges and more from quality suppliers like Mark Williams and Strange Engineering. 92 times for every one revolution of the axle/wheels. The taller (numerically lower) ratio would lower engine RPM, while a stiffer (numerically higher) ratio would raise engine RPM for any given speed. Lifetime Access Free Download PDF Teds Woodworking Plan Free woodworking advice daily at the Woodcraft of Austin!. I used a tire/gear ratio/rpm chart to figure out my. CHOOSING GEAR RATIOS For Best Performance - CF-301. Now put your jackstands under the axle. CRF's Only Gear - RPM - Speed Calculator Please read disclaimer. Text keith show contact info. Ring Gear Diameter: 8. All our reman components are remanufactured under strict ISO 2001:2015 quality control standards. We help you find the heavy duty truck parts that you need. To use the Gear/MPH. GMC Yukon Denali Front/Rear Differential May Develop Noise Due to Worn Bearings - 112 reports. Audi A6 C6: How to Change Fluid in Quattro System (Front and Rear Differentials) Is your A6 Quattro due for a front and rear differential oil change? Save yourself some hard earned money by doing it yourself and follow our step-by-step guide. Power is transmitted from the transmission to rear end 1:1 in. In mechanical engineering, a gear ratio is a direct measure of the ratio of the rotational speeds of two or more interlocking gears. 11 Ring & Pinion. 3 turbo or V8 did not have it. Typically the motor rotates about 12 times for every one revolution of the axle. What's this for? Well you can use it to size your tires, rear axle ratio and determine shift points and all that. Yukon products match the same high quality standards that we demand for our personal Rock Crawlers. ) Optimum rear gear based on tire, converter slip, MPH & RPM: Effective & Equivalent Gear Ratios based on New and Old tire heights and original gear. When ever you change tire size from the original size to another there will be a direct effect on power and drivability. 1 - This is a retrofit gear to allow the speedometer to function with 3. Typical 1/2 ton both 2wd and 4wd rear axles takes over 2 qts Typical 1/2 front axle takes 3. 00 Enter metric tire profile % hereProfile 70. Rear end gear ratio - I have a 1990 Chevy 1500 with3. It's a big job and won't be cheap, but the car should. News: As of April 1, 2008 All Classified forums require a Site Supporter subscription. If you can(D60 front axle) no it shouldn't mess anything up, the only reason it has 4. The following equations and calculators will estimate the resultant vehicle speed at a known engine rpm for a manual transmission with up to six forward gears. More than ever people ask nowadays: "What gears to choose for my bicycle?". Gear Generator is a tool for creating involute spur gears and download them in DXF or SVG format. 10 rear end gears. The rear axle ratio of your car is instrumental in determining which transmission gear set is best suited for your car. 11 rear would give you 10. Low gears give fast acceleration, high gears give better cruising. 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. This chart is based on 65 MPH and a gear ratio of 1:1, on a manual transmission in 4th gear. 00 plus if you need new bearings. Built to Perform, Built to Last. This calc can be used to find a new gear ratio. cant figure out why the gas milage is so bad thoughwhat i am saying is build the tranny to fit the purpose and engine of your ride. The gear ratios can remain as is for most of the other adaptions. Unless driven gears with more than 45 teeth and / or drive gears with fewer than 15 teeth become available, it will be impossible without using a ratio adapter to have an accurate speedometer with rear end gear ratios lower (higher numerically) than 4. 52 and multiplying that by the 4. Kits to install new gears into your drag racing rear ends. Your primary drive, transmission and rear drive sprockets all combine to determine your cruising rpm as well as your final top speed. 12 by your Jeeps tire diameter (Example:. The higher the RGP ratio, the lower the top end speed but faster acceleration and more pulling power. How Fast Will it Go? Road Speed Calculator Enter your data into the equation below to give you the maximum road speed for any vehicle. Premium Axles, Floater Kits, Bearings, Housing Ends, Flanges and more from quality suppliers like Mark Williams and Strange Engineering. The following equations and calculators will estimate the resultant vehicle speed at a known engine rpm for a manual transmission with up to six forward gears. One way to compensate for this is to swap out your differential gears. It hasn't been determined with any certainty what vehicles got the 6. The rear axle ratio of your car is instrumental in determining which transmission gear set is best suited for your car. Easy to use parts catalog. MFactory ACURA INTEGRA. In mechanical engineering, a gear ratio is a direct measure of the ratio of the rotational speeds of two or more interlocking gears. I'd love to try something around 3. To find your vehicle's RPM enter your Ring and Pinion Gear Ratio, Tire Height and Speed and press "Solve". 2 Updated: August 1, 2004. Fits most cars with a 3. 8 Unlimited X 4x4 gear ratio calculator. FIRST DIGIT 4. 11 rear end multiply 4. Gear Ratio and Tire Size Calculator - 4x4 and Jeep Ring & Pinion When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. In 66 the E brake was moved from the transmission rear to under the dash. See the chart below the table for typical ratios. Unless driven gears with more than 45 teeth and / or drive gears with fewer than 15 teeth become available, it will be impossible without using a ratio adapter to have an accurate speedometer with rear end gear ratios lower (higher numerically) than 4. Plus, you also add the necessary bearings, seals, and shims. On Mike Geokan's Bonneville Bullet we have a vacuum pump assembly run off the jackshaft to increase horsepower by keeping upper and lower end pressures negative instead of positive. You can either enter the values manually or use the presets on the right. The first gear ratio is calculated the same way like the second. From 2002 on same with front axle, synthetic 75W-90 is required. If your vehicle has a low gear ratio, you can offset this by installing slightly larger diameter tires. The higher the RGP ratio, the lower the top end speed but faster acceleration and more pulling power. How much does front differential repair cost? On average, differential repair can range anywhere from $500 to as much as $2,000. Use this gear ratio calculator to select the best ring & pinion and gear ratio combinations to serve your needs. How Fast Will it Go? Road Speed Calculator Enter your data into the equation below to give you the maximum road speed for any vehicle. Referring to the top example above, the first letter in the code "G" denotes the ring gear diff size of the rear axle. 10's, but I'm not sure about Rangers. Enter transmission and rear tyre data in the yellow boxes. To sum it up: In this example we have a spur gear with 70T, a second gear ratio of 1:2. Mark Williams Enterprises is an industry leading manufacturer of drag race axles, drive shafts, brakes, modular rears, rear end housings, thirdmembers, and chassis components. You probably can use the whole wire-wheel axle with a combination of spacers and/or minimal-offset disc wheels since the wheels will then be 7/8" closer to the center on each side. Transmission gear selection can be from a list of some common gearboxes or enter the gear ratios (Up to 8 Speeds) manually. If you remove the rear end and take it to a rear end shop with the gears I went with 3. 55-58 rear end with a. Shop our selection of 2007-2018 Jeep Wrangler JK Ring Pinion Gears. Referring to the top example above, the first letter in the code "G" denotes the ring gear diff size of the rear axle. 55, then the rear needs to be 3. SPEEDS in GEARS with 12 inch WHEELS and STANDARD 3. Corvette Differential Special Heavy Duty Parts Corvette Dana 44 HD, Dana 36 and Heavy Duty Dana 36 Re-manufactured Differentials with New Gear Sets All Differentials are Custom Built Also see our C4 Corvette Differential Ring & Pinion Section Differentials carry up-to a 5 year warranty that includes 'no gear noise'. Front suspension forks and rear shocks both require simple adjustments to work best for a particular rider, so this information is relevant to riders of both hardtail and full suspension mountain bikes. The numbers used as a default for the first set are what I currently have in my 1967 El Camino; a TH350 transmission, 235x60x15 tires, and a 3. Filthy Motorsports carries a wide range of parts, gears, and upgrades for the GM 8. We have developed this chart to help you select the optimum gear ratio to put your performance back where you want it. This calculator will show you your speed in each gear from everything from a stock bike to an all out drag bike with a separate jackshaft as well as the one we love the most, the Bonneville racer. EndTuning - A simple calculator to work out what road speed you will achieve at a given RPM, or calculate your RPMs from a given road speed. Audi A6 C6: How to Change Fluid in Quattro System (Front and Rear Differentials) Is your A6 Quattro due for a front and rear differential oil change? Save yourself some hard earned money by doing it yourself and follow our step-by-step guide. 90 to 1 ratio as the highest ratio allowed. Top of the line Rear End Housings, Fabricated Housing Kits, and Housing Components for high horsepower drag racing applications. a) The capital letter which identifies this gear set is supposed to be stamped with the serial number of the transaxle on the outside of the case. Easy and simple—that’s how we want your differential experience to be. A plus (+) number, minus (–) number or zero (0) is etched into the face of the pinion gear (2). Gear Ratios for:. 08 rear end center section is an original used two-pinion type with cast arma-steel housing. Calculators designed for the auto enthusiast. 34 mph, and in 6th gear at the same rpm would be 79. AMC REAR AXLE DIFFERENTIAL. 10 gears? Explorer rear axles had 4. 0 for 98/Me/XP/2000/NT/Vista. 390 cam, 275/60-15 wheels and I don't know what rear gear ratio I have in my Gm 10 bolt rear end. We have developed this chart to help you select the optimum gear ratio to put your performance back where you want it. Often it is actually on the other end of the driveshaft within the differential; I like to remember the term "4:11 posi", commonly assosciated with built muscle cars, as it refers to the lower ratio, higher leverage, positraction (extremely limited slip) differential gearset. Enter Shift at RPM, select gear to shift to and hit Auto Shift to run up through the gears recording shift point RPM and MPH. Gear and Differentiel is the discount outlet for truck driveline, differential components and parts. It will also make the chain slightly looser, and you will probably need to move the rear wheel back slightly to compensate. The value will be returned in estimated differential gear ratio, based on the entered values. That is the current standard for most modern automobile speedometers. Instructions. Enter the number of teeth on the Ring and Pinion gears and click the "Calculate" button to view your results. Differential Gear Ratio (also known as Final gear) Changing a diff to better suit larger wheels/tires is a good idea and in some cases is a must. Quick Performance Inc. 44 geared rear end. Blown up a few myself. It's FINALLY here! A TRUE mini-spool for the Sidekick AND the Samurai! The spool is an extremely strong and economical method of achieving 100% lock up of the rear differential without the quirkiness associated with automatic lockers. At the hit, you’ve got a transmission gear as a multiplier and also the ring & pinion. Yukon Gear & Axle provides you with the best quality products for your drivetrain that are built using only the top manufacturing processes in the world. As a rule of thumb you can expect to lose about 3. Calculate Rear End Gear Ratio Enter the tire diameter in inches, the rpm's of the engine at entered speed as indicated by your speedometer in mph. cant figure out why the gas milage is so bad thoughwhat i am saying is build the tranny to fit the purpose and engine of your ride. With sprockets, for example, a 12T clutch sprocket (output shaft sprocket) driving a 60T rear axle sprocket gives a ratio of (60 divided by 12 = 5) 5 turns to 1 turn of the rear axle shaft – 5:1. If you need help choosing a gear ratio, Summit sales reps can help or you can use the Gear Ratio Calculator on Summit's website to narrow down your choices. Well, since I had the money, I went and paid for a rear axle with unknown gears. 08) so I'm wide open on gear possibilities. If you have an owner's manual, the gear sizes and final drive ratio will be listed there. 73, but did any 4x4 Rangers come equipped with 4. With Gear Ratio Calculator you can see the theoretical top speeds in all gears. 12 X 38" = 4. Calculators designed for the auto enthusiast. Here are a few calculators that may be useful when working with gear ratios, tire sizing, etc. ) Optimum rear gear based on tire, converter slip, MPH & RPM: Effective & Equivalent Gear Ratios based on New and Old tire heights and original gear. If you have ever wondered what the gear ratio is in your rear-wheel drive vehicle and. Just enter the data in the white boxes below, then click the "Calculate" Button. We carry a variety of 2014-2018 Sierra 1500 gears that will enhance the way your truck works and even allow you to tow and carry heavier loads with you. Re: What is the front/rear gear ratio on an m7040? If you new your transmission gear ratios you could use a gear calculator to get close. 493 - this is the 1st gear ratio * the rear end ratio divided by the rolling radius of the rear tire (which determines the "moment arm", like the length of the wrench above, of the tire - and determines how axle torque becomes force at the tire patch. The addition of larger tires can greatly decrease performance and fuel economy. 10 locker in a big bearing 9 inch, c6 with a 3200 stall converter behind a 400 with 70 cj 4v heads giant voodoo cam and the works. For reference, with a 3. See also Salisbury Cover Removed Thread See also Banjo_Differential. SS #670 Gear Ratio calculator Here is a cgi I wrote to do gear ratio calculations. Where: D = Rotation of driver per revolution of follower or the driven gear or Pulley. Whip out your calculator and follow along. My Porsche runs like a scalded ape in first gear and it's overall ratio is 13. Speedometer Gear Teeth = (Drive Teeth * Rear End Ratio * Tire Revolutions per Mile) / 1,000. If you can(D60 front axle) no it shouldn't mess anything up, the only reason it has 4. Made from high quality 8620 forgings and Gleason gear cutting technology, these gears are made to last. 500 Cover Bolts: 10 Ring Gear Bolts: 10 Spline Count: 30 Dropout: False Pinion Support: False Carrier Breaks: 2. Most cars and trucks with low rear end ratios will take a 15 tooth drive gear. then the driveshaft speed is the engine speed divided by tranny gear ratio R1 = ( 6000 / R1) revolutions/minute, and the rear axle speed is the driveshaft speed divided by rear-end ratio R2 = ( 6000 / (R1*R2) ) revolutions per minute. You can use it to try out different rear end gears and tire sizes. 8 Unlimited X 4x4 gear ratio calculator. A gear reducer increases torque and decreases speed. Winters Performance quick change gears, quick change rear end gears, quick change gear cover gaskets, Winters gear chart, quick change drain pan and quick change gear totes are sold at Capital Motorsports. I am running a 4. With sprockets, for example, a 12T clutch sprocket (output shaft sprocket) driving a 60T rear axle sprocket gives a ratio of (60 divided by 12 = 5) 5 turns to 1 turn of the rear axle shaft – 5:1. The table below will help you determine what rear end ratio you have by using your RPO code, answering the question: What rear end ratio was in my Chevrolet or GMC vehicle when it left the factory. The below link will give you the RPM with your transmission at speed. All sorts of information about 1970 Mustang Axle Ratios. Differential Gear Ratio Calculators. 8-something rear end and Pentastar V6 and it is a total highway cruiser but on the street I can tell it would greatly benefit from a lower gear set. 36:1 Gear Set (Fits 2008-Up) Medium Speed Gear Set for Electric E-Z-GO RXV with a Schaeffer Rear AxleSpecifications:Fits Electric E-Z-GO RXV 2008-Up13. In order to calculate the engine RPM based on ring gear and pinion gear ratio, speed and tire height, this calculator makes the following assumptions: You may not be sure of the type of transmission you are currently using. 10:1, unless 27 inch or larger tires are installed. From RPM to metric conversion, we aim to have what you're looking for. Since your speedometer is operated by your transmission and will be calibrated for the 2:80 rear end, it will tell you that you are going around 90 miles per hour when you are really only going 60!.