rear end gear ratio chart

Now what helps with this magic number is torque. If you can't find a stamping or it is unreadable. For example, if it turned 3 and a half times, it's a 3.50:1 ratio. 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. Select the value you want to solve for. GEAR RATIO CALCULATOR. In other words, for every single turn of the ring gear, the pinion rotates 4.10 times. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! The M-W gear ratio calculator can also provide a vehicle's . Chevy rear end gear ratio chart. Example: Ring Gear / Pinion Gear = Ratio Find all of the gear ratios available for your vehicle in our Application Guides or call our staff of differential experts at (800) 510-0950 for LIVE help. The best ratio is to have your engine run at the sweet spot RPM at the speed you will be running most of the time. 4.56:1. 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. Recalculate the maximum vehicle speed using equation (11) and round towards nearest integer. Then, change Richmond's performance gear ratios and beat your best time! 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. Lower Gear Ratio (16 front teeth, 38 back teeth = 2.38) Using the first link, my top speed in 5th would be = 73.19mph*. It can scale hills relatively easily . This strengthens the whole rear end assembly. XTREMELINER POSTER Download the PDF for quick reference. A gear ratio of 3.55 means that the number of teeth on the ring gear is divided by the number of teeth on the pinion to give the ratio 3.55. Ford Performance 3.55 Gear Kit for 8.8" Rear End (86-14) #LRS-4209FRA-K. If you are trying to get the best fuel economy possible for your truck, a lower ratio is a great way to do it. With our RPM calculator, you can calculate your engine's RPM based off of your vehicle's speed, tire diameter, rear gear ratio, and transmission gear ratio. $289.99. The value will be returned in estimated differential gear ratio, based on the entered values… Follow Us on Flipboard The mathematical equation for Horsepower is; Torque X RPM/5252 = HP. . Next find the new tire size on the left of the chart and look across to find the . For maximum performance with less converter slip at the lockup point, your converter's stall speed should stall close to these figures. For better accuracy, turn the wheel 20 times and divide by 2 for . The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. Your axle ratio, transmission ratios, and even tire diameter all factor in, so be sure to look at the big picture. 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. ford 9 inch rear end gear ratios chart. The Ford Mustang rear end specifications have changed quite a bit since the beginning of the Fox Chassis in 1979. ford 9 inch rear end gear ratios chart. Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled "Service Parts Identification" inside the drivers door panel or glove box. Category: Date Codes and Casting Numbers. Recalculate the differential gear ratio using equation (10). 1958-1970 Chevy Rear Differential code Identification. The splite was like 97. 2.47 gears; 55 mph=1200 rpm, 60 mph=1280 rpm, 65 mph=1375 rpm. It is close to that magical number of 9. Then the formula would be calculated as: (38*3.91)/30 giving you 4.95. Rear-End / Differential Gear Ratio Calculator Enter the maximum potential safe engine RPM. gear ratio: The number of rotations of the crank arms per revolution of the rear wheel. You plan on moving up to 38". A gear ratio of 3.55 is on the higher end of the spectrum (although not the highest). If you take a few moments to study the gear chart for your transmission and rear end ratio combination you will see why this product is so popular. 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. The late '52 to '54 rear ends were Dana 44's. The same Dana rear end found in modern Vipers and throughout all the Mopar muscle cars. brighton suites rehoboth beach, de. . The color codes indicate: Highway, Good Fuel Economy Best Overall Performance The axle ratio is derived from dividing the number of teeth on the ring gear by the number of teeth on the pinion gear. As you can see, for the gear ratio of 9.176 the maximum vehicle speed is below initial target of 180 kph. This code will tell you the ratio, whether it is posi or . Q#tbm=isch&q=rear+differential+planetary+gear . 28) MPH (ex. Use this calculator to determine your gear ratio and vehicle's speed in any gear and any engine RPM for best performance. Or, change input variables (engine RPM, axle gear ratio and tire height) to determine vehicle speed in each forward gear. liquor store inventory cost. ford 9 inch rear end gear ratios chart. A vehicle's rear axle ratio is numerically expressed. Just above the steering wheel, you'd find an embedded plate in the dashboard made of metal. For the Tire Height field, enter . Gear ratio and tire diameter charts are ideal for making your car as efficient as possible. Use our simple Gear Ratio Calculator to quickly find the correct gear ratio for your ring and pinion gear set. Positraction 4-Speed (396/427) Note: All 1965-67 Corvette rear axles were manufactured at Warren and are suffixed "W". ford 9 inch rear end gear ratios chart. The aftermarket has responded to this by offering a plethora of ratios ranging from 2.91 to 6.50:1. . Count the number of times the drive shaft spins to one revolution of the tire. If you have installed larger tires, they rob performance, and you would want to go to a lower ratio like a 4.56 or 4.88 depending upon your tire diameter. Gear Ratio = Teeth on Axle Sprocket / Teeth on Clutch or Engine Sprocket. Jul 16, 2015 at 7:30 AM #18 #18. . Enter the number of teeth for the following gears. These charts are tear, oil & water resistant, convenient, and accurate. Figure I below is a chart of rear wheel torque increases; to find the torque . For example, if the axle ratios were listed as 3.31:1 and 3.42:1 and 3.55:1 and 4.10:1, the lowest ratio of the four gears is 4.10:1. The entire S550 Mustang generation has had 4, due in part to the limited-slip differential option. Published: June 8, 2022 Categorized as: moroccan rotisserie leg of lamb . Enter transmission and rear tyre data in the yellow boxes. What do gear ratios tell us? chris4x4, May 26, 2015 #17. For example, a go-kart has a clutch sprocket with 12 teeth and a rear axle sprocket with . Power You will have to change the speedometer drive gear in the transfer case if you change your differential ratios and keep the same tire size. ford 9 inch rear end gear ratios chart ford 9 inch rear end gear ratios chart. Wulf, Jul 17, 2015 Determining the gear ratio on your go-kart is simple. Write down that number. This chart applies to all Ford non-overdirve transmissions, manual and automatic. 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. Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the . Rear Axle Gear Ratios. I want more top speed instead. +61 2 9607 2299. Right down that RPM number. The gear ratio codes are located on the front passenger side of the differential as shown in the illustration below. In some cases both an 'A' and a 'B' prefix part number are shown for a particular gear set. Report at a scam and speak to a recovery consultant for free. While the parts catalog says " The third digit of the axle . In the example to the left, 37 ÷ 12 = 3.083333. Pick the tire hiegth, pick your gear ratio. Want to search for rear end parts by application, ask the Gear Wizzard Jump on Board. . gear ratio: The number of rotations of the crank arms per revolution of the rear wheel. Enter the number of teeth on your ring and pinion gear set to find the gear ratio. Generally tires squat about 3%. Luckily, Late Model Restoration has put together this Mustang gear ratio to RPM chart to help identify which gears your Stang may have installed. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! From the measly 2.26:1 gear found in some of the first years of the Fox Body Mustang to the 3.73:1 ratio found in some of the most current performance models, Ford has offered factory gear choices to fit almost every driving style! Example: If the drive shaft spins 3.5 times to one tire revolution, the ratio would be close to 3.55; 4 times is 4.10; 3 and 3/4 times is . Not all gear ratios are available so you have the choice between 4.88 and 5.13, 4.88 being the closest. Calculate Rear End Gear Ratio Needed. If you are measuring your tire, measure from flat ground up to the center of the hub and multiply that number by 2. For example: 41 . Don't let scams get away with fraud. The lower the gear ratio, the more rpm required to maintain a given speed with equivalent tire sizes. ford 9 inch rear end gear ratios chart ford 9 inch rear end gear ratios chart. come dine with me brighton 2018 Par Publié le Juin 6, 2022. OEM Gear Ratio Chart. Axle Ratios or Axle Codes. The more gears you have, the smaller the difference in ratios will be between them (eg: on a 27 speed bike there would be 9 steps between one gear and . 195/55 x 15 = 24.44 inch tyre diameter. The Hudson rear ends (pre-late '52) had a 4:10 ratio for non-OD, 4:56 ratio for OD, and an optional 3:55 rear ratio for non OD. A vehicle's rear axle ratio is numerically expressed. The most common code for this is "17." The next step would be to look at the tag on the rear end to see if the ratio matches the code on the door tag --if the tag is still attached to one of the (10) studs that holds the 3rd member to the rear end housing. A higher number denotes a lower ratio. The chart below will help you to select the optimum gear ratio to bring the power and torque back to where you want them. Using the chart, first determine what your original gear ratio and tire size are, then follow the lines to find your approximate RPM at 65 MPH. come dine with me brighton 2018 Par Publié le Juin 6, 2022. Partager . To find out which rear gear ratio your Mustang has, use the charts below. For Hydramatic trannies, I think the ratio was 3:08. That had less spline count in the diff side, where the hub side remain the same spline count. However, that's not really true for the front axle, as discussed below. Chevy rear end gear ratio chart. The more torque you have can help with that number. Quality Differential Parts since 1982! ford 9 inch rear end gear ratios chart. (.12 X 38" = 4.56) The below table can be used to get a rough idea on gear ratios. There is a gear ratio stamped on the tag. The most common place to find it is near the dashboard or on a sticker on the driver's side door jamb. ford 9 inch rear end gear ratios chart. (ex. These are 3.08 gears. 23 Mount Erin Rd, Blair Athol NSW 2560, Australia. A Simple Formula. If you are using the calculated diameter, multiply that number by .97 to get a more accurate reading. Solve For Gear Ratio (ex. Therefore, this implies that a ring gear with 41 teeth and a pinion with ten teeth results in 4.10:1. GM B-Body Complete 9" Rear End Packages. Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. GM B-Body Complete 9" Rear End Packages. Use the GM RPO codes on the label in your glovebox or on drivers door to determine axle ratios and more. Chevy 10 bolt rear end gear ratio chart. Don't let scams get away with fraud. The overall First gear ratio with the TH400 and 4.10:1 rear gear would be 2.48 x 4.10 = 10.168:1. 10 SPLINE POSTER Download the PDF for quick reference. With a 3.36 rear gear ratio that puts the final drive at 8.46. There is a gear ratio stamped on the tag. This chart provides values that represent a 1:1 ratio on a manual transmission. Turn the wheel TWO revolutions and count the number of driveshaft turns. Front Axle Codes. But, 10.168 4.70 (to determine the equivalent rear gear ratio) equals 2.16:1, which is not . How To Choose The Gear Ratio Based on Speed When selecting a Gear Ratio, you need the following information: 1. Chevy 10 bolt rear end gear ratio chart. The lower the gear ratio, the more rpm required to maintain a given speed with equivalent tire sizes. Rear diffs are two different version from early to late models. Most differentials nowadays will have a sticker on the outside with axle ratio information. I like that a lot. If you run the east coast mainly then 65 if you run out west allot the 70 or 75 in the sweet spot. This ratio refers to the number of teeth on the ring - i.e., driven gear - divided by the number of teeth on the pinion - i.e., the drive gear. They include the calculations for all gear sets and pinion ratios. Enter your 1/4 mile race car's information into our calculator to see how well you will perform. Access Drag Performance Calculator. 5000) Tire Diameter (in.) Skip to content. To find the gear ratio, divide the big number by the little number. Engine RPM at Cruise Speed Example: If you want to Cruise at 60 MPH at 2000 RPM and your Tire Diameteris 30", the Gear Ratioyou need is a 3.00 Formula to calculate Gear Ratio based . These calculations are assuming a manual transmission with a 1:1 ratio. Back to Top A ratio of 3.15:1 will give you a good mix of better mileage and decent power. Put a chalk mark on the top of the tire and the top of the drive shaft. In years 93-97 they had the early version R160 rear diff. Read off your mph at any rpm in any gear. Report at a scam and speak to a recovery consultant for free. Report at a scam and speak to a recovery consultant for free. Partager . The 1966 Mustang had 14 possible rear gear ratio/differential combinations. For a 3.73 ratio, there may be 41 teeth on the ring gear and 11 on the pinion . 3.08 gears, which is perfect for an X-15 Cummins running in double . (Hover over image to enlarge) Calculate the Ring & Pinion Teeth. Higher Gear ratio (15 front teeth, 40 back teeth = 2.67) Using the first link, my top speed in 5th would be = 65.19mph*. So from that example, we can see that the tag above is a 7.5 inch axle with 3.73 gears. Report at a scam and speak to a recovery consultant for free. The number of driveshaft rotations will help you determine your rear axle ratio. 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 transmission and transfer case are passing power straight through at a one to one ratio without reducing or overdriving the engines rotations per minute before it reaches the differential. 8.8" Ford Gears; 9" Ford Aluminum Center Section Assembly; 9" Ford Center Sections; 9" Ford Lockers; 9" Ford Gears; 9" Ford Aftermarket Cases; Full Spools; 7.5" GM Gears; 8.5" GM Gears; Mini Spools; Installation Kits; Nodular Iron Center Section; Pinion Supports; 9" Ford Pro Gears; Rear End Bearings; Xtreme Light .

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