Best Gear Ratio for 37 inch Tires

best gear ratio for lifted truck
Photo courtesy Juan Tello via flickr. Used under a CC BY 2.0 license.

The best gear ratio for 37 inch tires will depend on a variety of factors, including the size and weight of your tires, the terrain you’ll be driving on, and the type of driving you’ll be doing.

When it comes to the best gear ratio for a lifted truck, there is no one-size-fits-all answer. But, there are a few general guidelines that can help you find the right gear ratio for your lifted truck.

First and foremost, you’ll want to consider the size of your tires.

If you’re running 35 inch tires, for example, you’ll likely want a gear ratio between 4.10 and 4.56.

On the other hand, if you’re running 37 inch or larger tires, you may need a much lower gear ratio, such as 5.13 or even 5.38.

These ratios will help ensure that your engine is able to effectively power your larger tires, allowing you to maintain speed and control when driving off-road.

Yukon Gear & Axle (YGK014) Gear & Install Kit for Jeep JK non-Rubicon 5.13 Ratio
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  • Matching Gears in a 5.13 Ratio
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Yukon Gear YG GM14T-513T Ring & Pinion Thick Gear set for 10.5" GM 14 Bolt Truck 5.13 Ratio
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  • This is a thick gear for a 4. 10 and down carrier; This product is used in a 5. 13 ratio, thick

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Yukon Gear Install Kit for Dana 60 & GM 10.5" 14T 5.38 Ratio '99 & Down
  • Includes Front/Rear Ring Pinion Gear Sets
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  • Matching Gears in a 5.38 Ratio
  • Fits 1988 and Older GM 14 Bolt Truck
  • Fit type: Vehicle Specific

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Another factor to consider when choosing your gear ratio is the weight of your truck. Heavy trucks will require a different gear ratio than lighter trucks, as the engine will need to work harder to get the truck moving. For heavy trucks, a lower gear ratio of around 4.56 or 4.88 may be necessary to get the best performance.

If you’re driving a Chevy, Ford, Toyota, Silverado, Sierra, Tundra, 4-runner, F250, F150, Tacoma, Yukon, or other lifted truck, you’ll also want to research the specific gear ratios recommended for your make and model. This can help you fine-tune your gear ratio to get the best performance and efficiency possible.

If you’re still not sure which gear ratio to choose for your lifted truck, consider seeking the advice of a professional mechanic or off-road enthusiast.

A lifted truck with the wrong gear ratio can lead to a significant reduction in power, performance, and fuel economy. The right gear ratio can help you achieve optimum performance and give your truck the power it needs for off-road adventures.

Gear Ratios Explained

To understand the best gear ratio for a lifted truck, it’s essential to know how it works.

A gear ratio refers to the relationship between the number of turns in the driveshaft and the number of turns in the wheels. The gear ratio you choose will have a direct impact on your truck’s power, top speed, and fuel economy.

The gear ratio you should use for your truck will depend on various factors, such as off-road tire size, differential type, and axle strength.

For off-road enthusiasts, a gear ratio that provides more torque is ideal. The right gear ratio allows your truck to conquer steep hills and rough terrain while maintaining power and speed.

When selecting a gear ratio for a lifted truck, it’s essential to pay attention to the bearing and seal’s condition and the zerk fittings on the axle joints.

Proper maintenance ensures that your gear ratio performs optimally and prolongs the life of your truck’s components. Additionally, tie rod alignment and tire pressure can also impact the performance and longevity of your truck.

Lifted Truck Ratios

If you own a lifted truck, chances are that you live for off-roading and taking your vehicle to its limits.

But with great power comes great maintenance responsibilities. Proper maintenance of your lifted truck is crucial to keep it running smoothly and safely.

First and foremost, one of the most important aspects of maintaining a lifted truck is to ensure that the gear ratio is appropriate for the size of the tires.

If you have larger than stock tires, then the gear ratio needs to be changed in order to keep the engine operating at an appropriate RPM range. This ensures that the engine is not working too hard, which can cause damage to the transmission and other components.

Now, the question arises – what gear ratio should you use for your lifted truck? Generally, for 35 inch tires, a 4.10 gear ratio is preferable over a 3.73 as it helps maintain the drivability of the vehicle.

For heavy trucks or 37 inch tires, a 4.56 or 4.88 gear ratio is typically recommended. The best gear ratio for off-roading depends on factors such as the type of terrain and the driving style.

Should You Tackle a Spider and Ring Gear Replacement?

Changing the gear ratio differential can be a complex job, so it is advisable to take your truck to a trusted mechanic who has experience with lifted trucks. Having the right gear ratio not only prolongs the life of your vehicle but also enhances its performance on and off the road.

In terms of maintenance beyond the gear ratio, regular inspections of the suspension system, brakes, and steering components are important to ensure that everything is in good condition.

Keeping up with oil changes and other routine maintenance tasks is also crucial to prevent major breakdowns and retain the value of your vehicle.

To conclude, maintaining a lifted truck is no easy task, but it is essential to keep it running at its best.

Keeping the gear ratio appropriate for your tire size is crucial, along with regular inspections and maintenance of the suspension, brakes, and steering. So, take care of your truck and it will take care of you during those wild off-roading adventures.

Key Takeaways if you lift your truck or Jeep:

  • Maintenance for a Lifted Truck: Lifted trucks experience increased stress on wheel bearings and seals, needing proper size spare tire and jack, upgraded tie rod ends, and regular rotation for IFS trucks. Lubrication also helps mitigate squeaky components.
  • Re-gearing for a Lifted Truck: To ensure the best performance for your lifted truck, it’s necessary to consider necessary gear ratios for larger tires. Retaining mileage or increasing performance should also be taken into account when selecting the best gear ratio.
  • Ergonomics for a Lifted Truck: For easier entry and preventing seat wear, it’s recommended to add electric side steps for lifted trucks. This way, you won’t have to sacrifice functionality on the road while customizing your truck for better off-road ability.
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Yukon Gear & Axle Dura Grip Limited Slip Differential Positraction, 30 Spline, 2.73-Up, Compatible with 8.5"/8.6" GM Axle, YDGGM8.5-3-30-1
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Yukon Gear & Axle - Gear & Install Kit for Jeep JK non-Rubicon 4.88 Ratio - includes ring and pinion (4.88 ratio) - YGK013
  • Includes front and rear ring & pinion sets and master overhaul kits
  • Fits Dana 30 front, Dana 44 rear differentials
  • 4.88 ratio
  • Fits Jeep non-Rubicon JK
  • Yukon Gear and Install Kit package for Jeep JK non-Rubicon, 4.88 ratio
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Yukon Gear & Axle High Performance Ring & Pinion Gear Set for GM 8.5/8.6 Differential (YG GM8.5-373)
  • Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of conditions
  • Whether it’s on the street, off-road, or at the track; Yukon ring and pinion sets deliver unrivaled performance and quality
  • Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up
  • All Yukon ring and pinion sets come standard with a one-year
  • Fit type: Vehicle Specific
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Yukon Gear & Axle (YG GM8.5-323) High Performance Ring & Pinion Gear Set for GM 8.5/8.6 Differential
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  • yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up
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Yukon Gear & Axle (YGK055) Gear & Install Kit for Jeep JK non-Rubicon 4.11 Ratio
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Yukon Gear (YGGM8.5-411) Ring and Pinion Gear Set for GM 8.5' Differential
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Yukon Gear (YG D30SR-456JK) High Performance Ring and Pinion Gear Set for Jeep JK Dana 30 Short Reverse Pinion Differential, dana 30sr in 4.56 ratio jk
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  • yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up
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FAQs about Best Gear Ratio For Lifted Truck

What gear ratio should I use for 35 inch tires?

For 35 inch tires, the recommended gear ratio is around 4.10 or higher. This will ensure that your engine is not over or under worked and will give you the optimal driving experience.

Are 3.73 or 4.10 gears better?

If you are planning to run larger tires, 4.10 or higher gears would be a better option. However, if you are using your truck for daily driving with occasional off-road use, 3.73 gears would be sufficient.

What is the best gear ratio for heavy trucks?

For heavy trucks, the gear ratio will depend on the engine and the intended use of the truck. However, typically lower gear ratios, such as 4.10, are recommended for heavy trucks as this will enable better acceleration and towing power.

What is the best gear ratio for 37 inch tires?

For 37 inch tires, a 4.88 or 5.13 gear ratio is recommended. This is because the larger tire size can put more strain on the engine, and a higher gear ratio will help alleviate this strain.

What is the best gear ratio for a 35 inch tire Silverado?

For a Silverado with 35 inch tires, a gear ratio of 4.10 or higher is recommended for optimal performance. This will allow the engine to work efficiently and maximize torque.

What is the best gear ratio for big tires on a Chevy?

The ideal gear ratio for big tires on a Chevy will depend on the size of the tires and the intended use of the vehicle. However, a gear ratio of 4.56 or higher is typically recommended for larger tires to ensure optimal performance and efficiency.

Find the best gear ratio for 37 inch tires on Amazon.