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BEST GEARS IN REAR | Team Chevelle Both of these combos have the same final first gear ratio, but the 700R4 is gonna let your engine run at around 1800 RPM on the highway. 3.42 Vs 3.73 Rear Axle Ratio: What Are The Differences ... - Gmund Cars If you do more of regular city navigation and normal highway driving, with the occasional heavy-duty stuff, the 3.42 will suffice. Lower RPM at cruising speed will produce a vibration that is often mistaken for driveshaft imbalance. A vehicle's rear axle ratio is numerically expressed. 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. Not all gear ratios are available so you have the choice between 4.88 and 5.13, 4.88 being the closest. Ideal gear ratio for a 351 Cleveland 4spd for highway driving? This would yield a theoretical 3.33—which is close enough to the nearest available final drive ratio of 3.36:1. I think this combination will make a noticeable difference from my stock TH350 and 2.41 rear end. The 2.83 gears left me with pretty crappy acceleration from a stop and because I recently had that rear end break down on me, a shop rebuilt it and although I don't know the ratio, I know it's even lower than 2.83. Explorer Disc Brakes, GM, Assembly . Best Gear Ratio? - LS1LT1 Forum The 3.42 rear axle ratio may reduce the intensity of work a vehicle's engine has to do at normal highway speeds, thereby improving fuel economy Source: motivegear.com A lower numeric axle ratio like 3.42 may reduce the intensity of work a vehicle's engine has to do. Trail Gear 140194-1-KIT - Trail-Gear Rear Axle Bearing Pockets . Choosing New Rearend Gears Is As Easy As 1, 2, 3, 4 Next is a list of speeds vs RPM running low pro 22.5 tires. Just for the sake of argument, compare a TH350 pushing 3.73:1 rear gears and a 700R4 with 3.08:1 rear. Picking The Right Axle Ratio For Your Pickup - CarProUSA Maybe 1 mpg. Are 3.73 or 4.10 gears better? If you have the manual trans, 4.88 gears. A gear ratio of 3.55:1 is considered the best median level, for both good speed and torque. I drive mostly on the street the plan is to put a 350 with a good 300 hp at least and I want a higher top speed than the normal 110 mph I don't drive often on highways except every now and then. Jump to Latest . If more highway than town driving is planned I would go with 3.43. For something you want to drive on the freeway, I would be looking to change that 4.11. best rear end ratio | Dodge Cummins Diesel Forum Rear Axle/Rear End Ratio Information - CC Tech (2.10). The gearing is usually better in first gear as well as fourth. On the other hand, a 3:73 or perhaps a 4:10 will tow much more, while fuel economy greatly drops. Axle Ratio - Where to Find It and Which Is Best For You? Kellogg, IA. Best gear ratio for 35 inch tires - Jeep Wrangler Forum MGA: 4.30 10/43 4.10 10/41. The gear end ratio is the ratio of the ring and pinion gears in the rear axle. Speeds I am expecting are cruising at 70 mph. The factory 2 piece axles (Shaft, Wheel Drive Flange, big nut holding the two together) Is a failure waiting for the worst time to happen. How to pick the right gear ratio for your needs | Articles | Grassroots ... Calculate RPM for Given Speed(MPH), Rear Gear Ratio, and Trans Gear Ratio 3725 Harry S. Truman Blvd. 3.42 Vs. 3.73 Rear Axle Ratio, Which One Is Better? I am planning on changing the gears behind my 700 and will probably go with the 3:42, or possibly 3:55. Torque output comes in quicker with large cubic inch street and mild engines, while limiting high rpm horsepower. With the auto. For the Best Towing Capacity: If you are planning on towing large payloads and have a V8 gas or diesel engine, an axle ratio between 3.55 and 3.73 will be perfect. The lower the gear ratio, the more rpm required to maintain a given speed with equivalent tire sizes. I think you will be underwhelmed going with a 3.23. Usually the Detroit's like it around 1400-1550 or so is a good range. 250-350 miles at times (frequent stops) Answer (1 of 6): Freightliner has a 2.21 ratio available for direct drive transmissions. Great fuel mileage. How to Choose the Right Axle Ratio for Your Pickup Truck A 3.23 is a great all-around highway and around-town performance gear when you're not running an overdrive trans. You get best fuel mileage in direct drive as there is some power loss through overdrive gears. This ratio is the number of teeth on the ring (driven gear) divided by the number of teeth on the pinion (drive gear). Toll Free: 1-866-508-6394 Fax: 303-665-7021 . Best gear ratio fr highway driving/ - Hot Rod Forum A gearing ratio between 25% and 50% is typically considered optimal or normal for well-established companies. 0. I swapped the rear end for an 8" and in the process I went from a 3.33 ratio to a 2.83. No one is recommending 2.73s with a 540. New tire size + Old ratio divide by old tire size = new ratio Example: New tire size - 33" Old gear ratio - 3.07 Old tire size - 29" (33 * 3.07) / 29 = 3.49 Even though the ideal gear ratio may not be available, we should pick the closest options which turn to be 3.55. 700r4 Transmission And Rear End Gear Ratio - El Camino Central Forum In this video, I discuss some of the reasons to change your axle gears, as well as a formula to calculate the best gear ratio based on your tire size. The 8.8 Explorer rear end would be stronger yet, but more work. Best gear ratio for a daily driver CJ7 | Jeep Enthusiast Forums you could probably go either way, Myself, with the 3.73 and 6speed, it would be nice to have a 7th gear for highway driving, I couldn't imagin 4 . Free Shipping on Orders Over $99 at Summit Racing A direct 10 would be ideal for all around use tied to a 2.64 or 2.79 rear. what would be the best rear end gear ratio? - Pro-Touring.com For our example, we'll use a common 700R4. 2.21 with 275/80R-22.5 (517 rpm) tires will give 1143 rpm at 60 mph. Rear End Gear Ratio - TruckersReport.com The original tire size is 30" and the original gear ratio is 3.91. A 2.73 gear set is physical weak because the pinion is so big that there isn't much beef in the ring gear. best rear-end gear ratio? - Chevy Nova Forum If you run the east coast mainly then 65 if you run out west allot the 70 or 75 in the sweet spot. To find this number, we divide the tire circumference by the drive ratio. The 3.15 won't be a problem. The stock stall speed of most automatics is 1600-1700rpm. The DD15 operates well a a little lower RPM than the Series 60, so for that I . Remember, the 3.73 for the explorer was specified to turn much taller tire than you would ever find on a Mustang. The gear ratio is to be considered the optimum value as defined by Eq. 3.08 gears, which is perfect for an X-15 Cummins running in double . However, this gear ratio is not good for fuel economy. Then the formula would be calculated as: (38*3.91)/30 giving you 4.95. 2019 Ram rear axle ratio recommendations | DODGE RAM FORUM How to determine rear axle ratio and choose the best differential gear your obviously going to need to consider tire diameter, rear gear ratio and transmission gearing, generally your want the first gear in the transmission multiplied times the rear differential gear ratio to fall in the 10:1-10.5:1 range and cruise at a bit higher rpm that the torque converter stall speed in 1:1 gearing, if you have a over drive gear having a lock-up converter sure helps and a . Depends on your use. A gear ratio of 3.25:1 is good for long-distance traveling without heavy hauling. Here are some typical ratio numbers with the gear teeth counts (Pinnion/Crown Gear): Big Healey: 4.10 10/41 3.90 11/43 3.545 11/39. I am thinking 3.0 or 2.7 ratio. So instead of having to keep the engine straining at almost 9000 . That would be for a Series 60. 10 Best Rear End Gear Ratio For Highway Driving - A Round-Up Guide Those had a factory stall speed of about 2700rpm. If you constantly have a headwind, the gear ratio may be too high. 3.73) will provide more power and acceleration, while a higher gear ratio (e.g. I will be using the truck. 3.73 Gear Ratio vs. 4.11 Gear Ratio (Comparison of Rear-End Gears) Recommended Engine RPM @ Highway Speed. Maximum torque occurs at. 1967 rear end and gear ratio - Vintage Mustang Forums Gear Ratio Chart: Step-by-step >> 4x4 Off Roads Trucks equipped with 8-, 9-, or 10-speed automatics may work well with 3.31 ratios as the new transmissions have lower 1st and 2nd gears than the old 4-, 5- and 6 . What are you guys' thoughts on what the best rear end ratios are for all-around driving for a swap from a 3:90 torque-tube to GM 10 bolt on a 1954 Chevy 235 half-ton? Installation of the correct ring and pinion gear ratio will help optimize performance, fuel economy and overall driveability. Your basket is empty. which rear end gears for 700r4?? - Team Chevelle The tire height changes your effective gear ratio, running a taller tire would drop your engine RPM on . What is the best rear end for drag racing? Calculate RPM for Given Speed(MPH), Rear Gear Ratio, and Trans Gear Ratio Selecting the Best Gear Ratio. How To Select Proper Rear-End / Differential Gear Ratio Which rear end gear ratio - Vintage Mustang Forums The final drive ratio on a standard old school 4 speed is 1:1. What Is The Best Gear Ratio For A Semi Truck? (Solved!) I view the car as more of a summer canyon carver/cruiser than blasting between stoplights. Which Ford Rear Gear Ratio is right for you - YouTube axle ratio, and final transmission gear ratio. Gear Ratio - an overview | ScienceDirect Topics 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 . Differential Gear Ratios - Pittsburgh Power A gearing ratio lower than 25% is typically considered low-risk by both investors and lenders. How to pick the right gear ratio for your needs | Articles | Grassroots ... HOW TO CHOOSE THE BEST GEAR RATIO FOR YOUR NEW TIRES? You didn't state which Detroit (series 60 or DD15/13). All t. I have seen a few polls about gear ratios with 700R4. What is a good Gear Ratio for street use - Hot Rod Forum 2.73) will provide better fuel economy and higher speeds. A highway cruising speed of 60-65 MPH is considered a good target speed. Those ratios provide very good acceleration with gas V-8s and diesels. 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. Just for the sake of argument, compare a TH350 pushing 3.73:1 rear gears and a 700R4 with 3.08:1 rear. Filter by: 86-14 Gear Kits 86-14 Gears Sort By Recommended Price (low to high) Price (high to low) Customer Rating Best Selling Newest 1986-14 Mustang 8.8 Rear End Gear Kits A Guide to Mustang Rear Gears - AmericanMuscle.com Technically, the number should be expressed as a ratio, such as 3.55:1, meaning the drive shaft turns 3.55 times for each turn of a wheel. 2.64 gears; 62 mph=1390 rpm, 65 mph=1450 rpm, 70 mph=1625 rpm. Best rear axle gears for th350 - NastyZ28.com