truck rear end ratios
Eg If your driveshaft made 3 34 revolutions that would determine a 373 gear ratio. 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.
Mustang Rear Gear Ratio To Rpm Chart Lmr Com Mustang Chart How To Find Out
Truck gear ratios are usually classified in two ways.
. Axle Ratio RPM X Tire SizeSpeedMPH X 336 Example 488 2881 X 3765 X 336 Most Power Best for Towing Reduced Fuel Economy Daily Driver Best Overall Performance. Engine RPM Cruise Tire Revolutions Per Mile Rear-end Gear Ratio EXAMPLE Without Overdrive. The axle ratio also sometimes called the gear ratio is determined by the gears in your trucks differential.
According to Slesinski Class 8 linehaul trucks that spend most of their time at highway cruising speeds usually fall into axle ratio ranges usually between 226 through 3361. 1 High rangelow range. 315 rear axle ratio.
9 DETROIT LOCKER. The high range ratio is used for highway speeds and the low range ratio is used for off-road speeds. It all depends on the.
The Final Drive Ratio shows you how many times the engine turns for one complete turn of the. Both combinations give roughly the same cruise. These ratios are determined by the number of teeth on the pinions which impact the number of turns the axle.
When you hear car drivers refer to numbers such as 3081 3731 or even 4101. Like previously mentioned if your. What is a Rear End Gear Ratio.
8 TRACK LOC. If you have installed larger tires they rob performance and you would want to go to a lower ratio. Some drive-axle ratios range from 2691 to 7171 with ten or two different ratios between them.
GM uses only 373 with its 2500 and 3500 diesel pickups. If you run the east coast mainly then 65 if you run out west. If you get approximately 2 34 revolutions you have a 276 gear ratio.
This system is commonly used to describe 44 trucks. 62 mph1390 rpm 65. If you have a 342 rear end ratio and need more towing power you would switch to a 410 ratio.
Our Mission The driving force of our success is understanding the evolving needs of todays owner-operators and drivers. Most automobiles use gear ratios in the drive axle and the transmission to multiply power. Next is a list of speeds vs RPM running low pro 225 tires.
321 rear axle ratio. Now you can determine what fingal gear ratio you need for your average driving and speed. DODGEDODGE RAM FINAL DRIVE RATIOS.
For example a 44 truck with a 355 rear axle ratio. 9 TRACK LOC. Ford goes with 410 on the F-450 which is more of a towing truck.
This component is located at the rear end of a rear-wheel-drive truck. 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. Most fleets today opt for either a 355-58 rear end with a 73-74 OD top gear or 264 rear end with a direct drive top gear.
Common in the Ford F-150 equipped with a five-liter V8 engine this ratio offers fuel economy on par with other V6 engines. When you have an engine that provides peak power. You can determine the gear ratio of your truck by the VIN decoding checking the axle differential cover driveshaft revolution and calculation of the teeth of the pinion gear and ring gear.
FIGURING REAREND GEAR RATIO Ring Pinion FORMULA. 8 DETROIT LOCKER. There are more than a dozen options to choose from.
The standard axle ratio found in a GMC truck or SUV has been carefully selected according to the vehicles specific body style and engine in order to provide the best all-around mix of. Most class 8 semi trucks have a gear ratio of between 226 and 3361. So when you buy your next new truck put a check mark next to the box that lists the optional axle ratio best suited for your driving needs and future upgrades.
Our mission is to provide innovative solutions for the challenges. Find your transmission and rear gear multiplier below. When you multiply the two ratios it equals the final drive ratio.
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