truck rear end ratios

In our current truck the gear ratio is 251 our last truck had a 3211. Ad Every Make and Model at the Lowest Price.

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What is a Rear End Gear Ratio.

. Its H or. It all depends on the trucks class make and model and the rear-axle capacity. Some drive-axle ratios range from 2691 to 7171 with ten or two different ratios between them.

If you get approximately 2 34 revolutions you have a 276 gear ratio. Where to look on Mack rear ends to find your factory gear ratio. Most automobiles use gear ratios in the drive axle and the transmission to multiply power.

Typically when you ask someone what ratio is in their rear-end they will say 25 because in a vehicle the ratio is always _ 1 or _ to 1. In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors Chevrolet and GMC branded pickups crossovers and SUVs. Class Leading Torque Towing Payloads Fuel Efficiency for Your On-SiteOff-Road Needs.

A semi truck using a gear ratio of 226 would have good fuel economy and sufficient power for small tasks however it would lack a great deal of. There are more than a dozen options to choose from. 9 DETROIT LOCKER.

Shop Our Rear End Superstore Today. If its 3 12 its a 3501. The gear ratio is usually listed in the VIN code located on drivers door the glove box or the ID plate on the dashboard.

Drive-Axle Ratios Fuel Economy. That said if you regularly tow heavy trailers. These ratios are determined by the number of teeth on the pinions which impact the number of turns the axle makes.

Our Tribe The Trucking Tribe is a group of people with a mission to do the hard work continue their education improve their health and well-being and achieve success in their. Count the times a rear wheel goes around for one driveshaft turn. Consider changing the axle ratios if the current trucks setup doesnt match its usage needs.

The rear axle ratio determines if a truck is a capable tow beast or a comfortable highway cruiseror both. To find the needed ratio we can multiply 410 by 110 percent. Open 8am - 630pm.

I recommend 3731or 4101 ratios for those who regularly tow heavy trailersand as I said above 410s for anyone going to larger tires. This is a good ratio for the occasional towing or hauling individual. The ratio determines how the performance speed and fuel economy will be.

Both combinations give roughly the same cruise rpms and final drive ratio and the best balance between efficiency and. Most class 8 semi trucks have a gear ratio of between 226 and 3361. Our Mission The driving force of our success is understanding the evolving needs of todays owner-operators and drivers.

For instance the 3421 ratio included on many Canyon V-6 and Sierra 1500 models offers a good all-around blend. 8 DETROIT LOCKER. Eg If your driveshaft made 3 34 revolutions that would determine a 373 gear ratio.

Like previously mentioned if your car has an open differential non-positraction you will. The use of a ratio allows the vehicle builder to use different transmissions engines and tires depending on the needs of the owner. 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.

The rear end ratio tells you how many turns of the wheel are needed for one turn of the driveshaft. The 33s are 110 percent of the 30s or 10 percent larger. 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.

8 TRACK LOC. These are not the only ratios however. Ad Free Shipping Fully Road Tested And A Money Back Guarantee.

9 TRACK LOC. Our mission is to provide innovative solutions for the challenges they face. When you hear car drivers refer to numbers such as 3081 3731 or even 4101 they discuss the ring-and-pinion gears ratio within the rear axle.

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 Highway Driving Good Fuel Economy Gear Ratio 273. Consider the available axle ratios when buying a vehicle. For a person who tows more often and heavier loads the 373 or.

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. The most popular rear end ratio in trucks today is the 355 which sort of averages towing power and fuel economy. When you multiply the two ratios it equals the final drive ratio.

PackRatTDI Licensed to Ill. 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 performance towing strength and efficiency. For example a 44 truck with a 355 rear axle ratio has a high range ratio of 3551 and a low range ratio of 11.

Usually the Detroits like it around 1400-1550 or so is a good range. If you run the east coast mainly then 65 if you run out west allot the 70 or 75 in the sweet spot. If you have a 342 rear end ratio and need more towing power you would switch to a 410 ratio.

Here are three ways to find the gear ratio of your truck. If you have installed larger tires they rob performance and you would want to go to a lower ratio like a 456 or 488 depending upon your tire diameter. The driveshaft connects the differential to the transmission and it turns at the same speed as the engine.

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