truck rear end ratios
What is a Rear End Gear Ratio. 15040s 19050s 22121 23121.
Mustang Rear Gear Ratio To Rpm Chart Lmr Com Mustang Chart How To Find Out
These are not the only ratios however.
. Trucks that respond best to heavy loads typically have an axle ratio of 373 392 or 410. Power is delivered through an 18 speed trans with a 325 rear end. For example the 2021 Ram 1500 is sold in three axle ratios 3211 3551 and 3921.
To find the gear ratio divide the big number by the little number. 9 TRACK LOC. Eaton single axle differentials.
Most automobiles use gear ratios in the drive axle and the transmission to multiply power. 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. C10 C20 C30 K10 K20 K30 P10 P20 P30.
Found in the Dodge RAM 1500 this axle ratio is an economical choice for excellent gas mileage on the highway. This will give you the axle ratio. You may have a 11 bolt battern or 10 on your truck.
Truck gear ratios are usually classified in two ways. If you have a 342 rear end ratio and need more towing power you would switch to a 410 ratio. Eaton single axle two speed differentials.
Its a 283 inch wheelbase truck. GM Light Duty Truck Service Manuals cover the following models. Most class 8 semi trucks have a gear ratio of between 226 and 3361.
In the example to the left 37 12 3083333. The Chevrolet Silverado offers a nearly identical set with a 323-to-1 ratio. 1800 RPM 65693811 2731 x 130 3541.
Engine RPM Cruise Tire Revolutions Per Mile Rear-end Gear Ratio EXAMPLE Without Overdrive. If you open the drivers door and look at the door jamb youll see a sticker like the one shown below. EXAMPLE With Overdrive 30.
Once you know the door code go to the chart below to identify it. Rs381 rs401 rs402 rs404 rs460 rs461 rs480. There are two different spline counts out there too.
Each one affects the trucks towing capacity. FIGURING REAREND GEAR RATIO Ring Pinion FORMULA. A 41 ratio allows a towing vehicle to start moving without as much throttle.
Divide the number of the ring gears teeth by the number of the pinions teeth. Hover over image to enlarge Calculate the Ring Pinion Teeth. The axle gears are a part of the differential and are located behind the inspection cover on your axle.
1 High rangelow range. That said if you regularly tow heavy trailers. 315 rear axle ratio.
If you run the east coast mainly then 65 if you run out west allot the 70 or 75 in the sweet spot. When you multiply the two ratios it equals the final drive ratio. 8 TRACK LOC.
These ratios are determined by the number of teeth on the pinions which impact the number of turns the axle makes. Youll see that the area labeled F is for the Axle Code. 8 DETROIT LOCKER.
1800 RPM 65693811 2731 EXAMPLE Without Overdrive. C 2wd pickups cab n chassis and Blazer Suburban K 4wd pickups cab n chassis and Blazer Suburban and the P model line is Chevy Vans. The axle ratio is derived from dividing the number of teeth on the ring gear by the number of teeth on the pinion gear.
Dc402p dc461p eaton rear with traction control. Edmunds guide to axle ratios cites the Ram 1500 for figures. Two common base axle ratios for trucks are 308 and 342.
It has a Cummins X-15 605 HP engine that has been tuned to 730 HP right here at Pittsburgh Power and verified on our dyno. The reasons why make perfect sense with a little bit of insight. 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.
Then you can always count all the teeth on the pinion ring gears. A 373 ratio is suitable for regular light towing. 2000 RPM 65693811 3041.
The truck features full lockers all disk brakes a tool box with steps and 225 low pro tires with low miles. Theres no question the easiest way to identify the axle and gear ratio in your truck is from the door sticker. It will help you choose the right axle that fits into what you plan to use your truck for.
Common in the Ford F-150 equipped with a five-liter V8 engine this ratio offers fuel economy on par with other V6 engines. For a 373 ratio there may be 41 teeth on the ring gear and 11 on the pinion for 372. Diff Ratio OverDrive ie.
Method 1 requires that you take apart your differential but there many be an easier way. 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. Usually the Detroits like it around 1400-1550 or so is a good range.
Its essential to understand the axle ratio when buying a truck or upgrading one you already own. If you plan on towing a fifth-wheel trailer or anything heavier than 5000 pounds you should consider a 41 axle ratio. This system is commonly used to describe 44 trucks.
These are 308 gears. 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. Eaton front with traction control.
Use Weller Trucks Road Speed Calculator to find the maximum road speed for your truck and trailer. The numerically high axle ratio like the Ford 373 provides the truck more low speed wheel torque and makes it easier to get the vehicle moving. 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.
9 DETROIT LOCKER. - 336 355 370 390 411 433 456 488 and 529. For instance the 3421 ratio included on many Canyon V-6 and Sierra 1500 models offers a good all-around blend.
The standard 2021 Ram 1500 axle ratio of 321. If you cant find a stamping or it is unreadable. Count the number of teeth on the ring gear and the pinion.
10 Best Aftermarket CV Axles With 100 2022 Review Buying Guide The Differences Between 342 And 373 Rear Axle Ratio. Not all the carriers are the same size and not all carriers have the same bolt patternnumber. The high range ratio is used for highway speeds and the low range ratio is used for off-road speeds.
The differential ratio is stamped on the bottom of the pumpkin. 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. How axle ratio impacts towing capacity.
1717 North Magnolia Avenue El Cajon CA 92020 Toll Free 800-999-9555 Telephone 619 562-0060 Fax 619 562-1186. Contact us today to learn more. 321 rear axle ratio.
Secrets Of The Ford 9 Inch Rear Axle Mac S Motor City Garage Automotive Mechanic Ford Trucks Car Mechanic
Rear Axle Codes Determine Gear Ratio Ford Ranger Forum Coding Axle Ford Ranger
Tire To Gear Ratio Chart Custom Rat Rods Automotive Mechanic Jeep
Pin On Gears
1973 1987 Chevy Truck Specs Engines Transmissions Transfer Cases And Rear Ends Gear Ratios Chevy Trucks Automotive Repair Shop Chevy
Chevy Differentials Ebook Chevy Trucks Chevy Trucks
Tire Gear Ratio Chart Tyre Size Jeep Gear Gears
Gear Ratio Tire Size Chart Http Www Jeep4x4center Com Jeep Tires Tire Gear Ratio Chart Htm Jeep Mods Truck Tyres Jeep Truck
1973 1987 Chevy Truck Specs Engines Transmissions Transfer Cases And Rear Ends Gear Ratios Chuck S Chevy Truck P Chevy Trucks Chevy Transmission Chevy
12 Bolt Axle Ratio Codes Chevy Rear End Gears Bolt
Simple Steps For Accurate Differential Identification Answers To What Rear End Is On My Truck Autoanything Jeep Cherokee Jeep Gear Jeep Zj
1973 1987 Chevy Truck Specs Engines Transmissions Transfer Cases And Rear Ends Gear Ratios Chevy Trucks Transfer Case Chevy
Stock Land Cruiser 100 Gear Ratios Both Us Transmission Options Landcruiser 100 Land Cruiser Overlanding
Jeeping 201 Gearing Jeep Truck Tyres Tyre Size
Mopar Ring And Pinion Gear Kit For Chrysler 8 25 Rear Axle 3 07 Axle Ratio Pinion Gear Chrysler Mopar
3 73 Vs 4 10 Gears Mustang Gear Ratios Lmr Com Hybrid Trucks Fox Body Mustang Rear End Gears
Differential Gear Ratio Chart Tire Size To Gear Ratio Automotive Mechanic Car Mechanic Rat Rods Truck
Mustang Rear End Gear Ratios Axle Guide Lmr Com Fox Body Mustang Mustang Ford Mustang Cobra
What Diff Do I Have Or How Do I Find Out Jeep Cherokee Jeep Gear Jeep Zj