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What is the ratio of a Ford 8.8 rear end?

The Ford 8.8 rear end is a popular and durable rear differential used in many Ford vehicles. The rear end ratio, also known as the gear ratio, is an important specification that determines the performance characteristics of the vehicle. In this article, we'll explore the details of the Ford 8.8 rear end ratio and how it affects your driving experience.


What is the Ford 8.8 Rear End Ratio?


The Ford 8.8 rear end ratio refers to the gear reduction between the driveshaft and the rear wheels. Specifically, the 8.8 ratio means that the ring gear in the differential is 8.8 times larger than the pinion gear. This gear reduction allows the engine to provide more torque to the rear wheels, improving acceleration and towing capacity. The most common Ford 8.8 rear end ratios are 3.55:1, 3.73:1, and 4.10:1.


How Does the Ratio Affect Performance?


The rear end ratio has a significant impact on the performance and characteristics of your vehicle:



  • Lower Ratios (3.55:1 or 3.73:1): These ratios provide better fuel economy and higher top speeds, but less low-end torque and acceleration.

  • Higher Ratios (4.10:1): These ratios offer improved low-end torque and acceleration, but lower top speeds and slightly worse fuel economy.


The choice of rear end ratio ultimately depends on the intended use of the vehicle. For example, a truck or SUV used for towing and hauling may benefit from a higher 4.10:1 ratio, while a sports car or performance-oriented vehicle may perform better with a lower 3.55:1 or 3.73:1 ratio.


Changing the Rear End Ratio


If you're looking to modify the performance of your Ford vehicle, changing the rear end ratio is a common and effective upgrade. This can be done by replacing the ring and pinion gears in the differential with a different set, effectively changing the gear ratio. This is a complex process that should be performed by a qualified mechanic or technician.


Ultimately, understanding the Ford 8.8 rear end ratio and how it affects your vehicle's performance is crucial for making informed decisions about your driving experience and any potential modifications.

Why is the Ford 8.8 rear end so popular?


And Broncos especially the four-wheel drive models and those with bigger engines. But not always because mine's a 300. And it's got an 8.8.



What are the ratios for the Ford 8.8 rear end?


The 8.8 was built with the following ratios: 2.26, 2.47, 2.73, 3.08, 3.27, 3.45, 3.55, 3.73 and 4.10:1. Only the 2.73, 3.08, 3.27, and 3.55:1 ratios were available with Traction-Lok. If you decide to upgrade to a Traction-Lok differential, you're limited to the ratios offered at the factory.



Is a Ford 8.8 the same width as a Dana 35?


the 8.8 is 1 1/4 narrower than the dana 35. it is 5/8 narrower per side.



What is the best rear end ratio?


The most popular rear end ratio in trucks today is the 3:55, which sort of averages towing power and fuel economy. This is a good ratio for the occasional towing or hauling individual. For a person who tows more often, and heavier loads, the 3:73 or 4:10 may be more appropriate.



What is the best axle ratio for pulling?


between 3.55 and 3.73
The higher the ratio, the more revolutions per minute. Towing: For pickup trucks released after 2010, the best axle ratio for towing falls somewhere between 3.55 and 3.73. This range provides good acceleration for V8 gas and diesel engines.



What is my Ford axle ratio?


To determine the axle ratio of your vehicle, locate the two-digit axle code first, then use your vehicle's towing guide to find the axle ratio that corresponds to that code. If your vehicle has a limited-slip differential, it will be noted as Limited Slip.



How do I find out what gear ratio my Ford has?


To determine the axle ratio of your vehicle, locate the two-digit axle code first, then use your vehicle's towing guide to find the axle ratio that corresponds to that code. If your vehicle has a limited-slip differential, it will be noted as Limited Slip.



How strong is a Ford 8.8 rear end?


This rearend is lighter than a 9-inch and is as strong as a 12-bolt (except for the axles), and many Mustangs came from the factory with Traction-Lok limited-slip differentials.



Is a Dana 60 wider than a Dana 44?


Although the Dana 44 and Dana 60 differential covers look similar, their sizes are significantly different. The Dana 44 differential cover will measure about 9 1/2 inches wide and 10 1/2 inches tall, while the Dana 60 differential cover will measure about 11 1/4 inches wide and 12 inches tall.



What are the Ford English axle ratios?


Ratios of 3.54, 3.77, 3.89, 3.90, 4.12, 4.44 were fitted to a variety of axles. In addition to these the Ford Motor Co. made some special ratios in the 1960s for competition use. These were 4.7, 4.85, 5.14, 5.28, 5.57, 5.66, 5.83, 6.16.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.