Ever stare at your awesome 37-inch tires and wonder, “Are my gears ready for this?” It’s a common question for anyone looking to upgrade their ride. Those big, beefy tires look incredible, but they can put a serious strain on your truck’s engine and transmission if your gears aren’t matched correctly. It’s like trying to push a heavy cart with a tiny bike gear – it just doesn’t work well!
Choosing the right gears for 37-inch tires can feel like a puzzle. You might worry about losing power, burning more gas, or even damaging your vehicle. There are so many numbers and opinions out there, it’s easy to get confused. But don’t let that stop you from enjoying your off-road adventures or simply cruising in style!
In this post, we’re going to break down exactly what you need to know about gears and 37-inch tires. We’ll help you understand why this match-up is so important and guide you toward the best gear ratios for your needs. By the end, you’ll feel confident about your choice and ready to get the most out of your truck.
Our Top 5 Gears For 37 Inch Tires Recommendations at a Glance
Top 5 Gears For 37 Inch Tires Detailed Reviews
1. Power Steering Gear Box for Jeep Wrangler TJ
Rating: 9.4/10
Tired of struggling to turn the wheel on your lifted Jeep with big tires? This brand-new Power Steering Gear Box is built to handle the demands of your off-road adventures. It’s designed to fit a wide range of popular Jeep models, including the Wrangler TJ (1997-2002), Wrangler YJ (1987-1995), and Cherokee XJ (1984-2001). You won’t have to worry about sending back an old part because there’s no core charge, making the purchase simple and straightforward. This gear box is a perfect upgrade for Jeeps running tire sizes from 31 inches all the way up to 37 inches, giving you the control you need on and off the trail.
What We Like:
- Direct fit for Jeep Wrangler TJ, YJ, and Cherokee XJ models.
- No core charge makes the buying process easy.
- Built to handle larger tires (31″ to 37″) and lift kits.
- Brand new part means no worries about worn-out components.
- Improves steering feel and reduces effort when turning.
What Could Be Improved:
- Installation might require some mechanical knowledge or professional help.
- Specific steering ratio is not mentioned, which might matter to some enthusiasts.
This power steering gear box is a solid investment for any Jeep owner looking to improve their steering performance. It delivers the robust control needed for larger tires and lifted suspensions, making your driving experience much more enjoyable.
2. Vital All-Terrain Heavy Duty Upgraded Power Steering Gear Box for Jeep Cherokee XJ 84-01 w/Lift Kit & 31
Rating: 8.6/10
Tired of wrestling with your Jeep Cherokee XJ’s steering wheel, especially after adding bigger tires? The Vital All-Terrain Heavy Duty Upgraded Power Steering Gear Box is here to make your off-road adventures smoother. This brand-new gear box is built tough for your 1984-2001 XJ, and it’s designed to handle everything from everyday driving to serious trail riding. It’s a game-changer for Jeeps sporting 31, 33, 35, or even 37-inch tires. Forget about struggling to turn; this upgrade makes it easy.
What We Like:
- Fits all Jeep Cherokee XJ models from 1984 to 2001.
- It has a larger bore, which means it turns bigger tires much more easily than the original.
- This is a brand-new unit, so there’s no core charge to worry about.
- It’s perfect for Jeeps that have been lifted and are running large tires like 31, 33, 35, or 37 inches.
- It makes turning larger wheels and tires feel effortless, way better than the stock gear box.
- This heavy-duty gear box is built to last longer.
What Could Be Improved:
- While it makes turning easier, the installation might require some mechanical know-how.
- For some users, the price might be an initial consideration.
This upgraded power steering gear box significantly improves your Jeep’s steering performance. It’s a solid investment for any XJ owner looking for a more comfortable and capable driving experience off-road and on.
3. Vital All-Terrain Upgraded Power Steering Gear Box for Jeep Wrangler TJ 1997-2002 w/Lift Kit & 31
Rating: 9.0/10
Tired of struggling to steer your lifted Jeep Wrangler TJ, especially with those big tires? The Vital All-Terrain Upgraded Power Steering Gear Box is here to make your off-road adventures smoother. This brand-new gear box is designed specifically for Jeep Wrangler TJs from 1997 to 2002, fitting all trims like SE, Sport, Sahara, Rubicon, and Laredo. It’s built to handle the extra demands of larger tires, giving you better control and making it easier to turn your wheels, whether you’re on the trail or just navigating the city.
What We Like:
- It fits all Jeep Wrangler TJ models from 1997-2002.
- It has a larger bore to easily turn bigger tires (31, 33, 35, and 37 inches).
- It’s a brand new part, so you don’t have to worry about a core charge.
- It’s perfect for Jeeps that have been lifted.
- It makes steering easier and improves control.
What Could Be Improved:
- The description doesn’t mention if installation is easy or if special tools are needed.
- There’s no information about its warranty.
This upgraded gear box is a solid choice for TJ owners looking to improve their steering performance. It offers a significant upgrade for those running larger tires and lift kits.
4. Rock Crawler On 37 Inch Tires
Rating: 9.2/10
Show off your passion for off-roading with the “Rock Crawler On 37 Inch Tires, Off Road, Over Landing T-Shirt” from Off-Road Styles. This tee is made for adventure lovers. It features a cool “Rock Crawler No Problem” design that speaks to anyone who enjoys tackling tough terrain. Whether you’re into big rigs, RC crawlers, or just the thrill of the trail, this shirt is for you. It’s a great way to let everyone know you’re ready for the next off-road challenge.
What We Like:
- Awesome Design: The “Rock Crawler No Problem” graphic is perfect for anyone who loves to crawl over rocks.
- Versatile Appeal: It celebrates all kinds of off-road vehicles, from 4×4 trucks to ATVs and dune buggies.
- Comfortable Fit: The t-shirt has a classic fit and is lightweight, making it comfortable for long adventures or just relaxing.
- Durable Construction: Built with a double-needle sleeve and bottom hem, this shirt is made to last through all your expeditions.
- Great for Dads: It’s an ideal gift for any dad who enjoys off-roading or rock crawling.
What Could Be Improved:
- Limited Color Options: While the design is great, a wider range of shirt colors could offer more choices.
- Fit for All Body Types: While it’s a classic fit, offering more inclusive sizing options would be beneficial.
This t-shirt is a fantastic choice for anyone who lives for the off-road life. Grab yours and wear it proudly on your next adventure.
5. Rock Crawler On 37 Inch Tires
Rating: 9.3/10
Gear up for your next adventure with the Rock Crawler On 37 Inch Tires, Off Road, Over Landing Zip Hoodie from Off-Road Styles. This hoodie is built for those who live for the thrill of the trail. It features a bold “Rock Crawler No Problem” design, perfect for anyone who loves pushing their vehicles to the limit. Whether you’re into 4×4 trucks, dirt bikes, ATVs, or monster trucks, this hoodie celebrates the off-roading spirit. It’s made for men and women who enjoy crawling their RC cars or big rigs over tough terrain. Wear it proudly on your next rock crawling expedition.
What We Like:
- The “Rock Crawler No Problem” design is awesome for off-road enthusiasts.
- It features a wide variety of off-road vehicle designs, not just rock crawlers.
- The hoodie is designed for adventure-minded people who love to crawl.
- It’s a perfect gift for dads who enjoy off-roading and rock crawling.
- The 8.5 oz fabric offers a good balance of warmth and comfort.
- The classic fit ensures it feels comfortable for everyday wear.
- The twill-taped neck adds extra durability.
What Could Be Improved:
- More size options could be available for a wider range of wearers.
- A wider selection of color choices might appeal to more people.
- The description could mention the material blend for more detail.
This zip hoodie is a fantastic way to show off your passion for off-roading. It’s comfortable, durable, and designed for the true adventurer.
Conquer Any Terrain: Your Guide to Gears for 37-Inch Tires
So, you’ve got those awesome 37-inch tires on your rig, ready to tackle anything. That’s fantastic! But to really make those big meats sing, you need the right gears. Changing your gear ratio is like giving your engine a superpower boost. It helps your truck or Jeep move those massive tires more easily. This guide will help you choose the perfect gears for your adventure.
Why Do You Need New Gears?
When you put on bigger tires, your vehicle’s engine has to work harder. It’s like trying to push a heavy cart uphill. The factory gears aren’t designed for the extra weight and rolling resistance of 37-inch tires. New gears change how your engine’s power is sent to the wheels. This makes a big difference in how your vehicle drives. You’ll notice better acceleration, improved towing power, and less strain on your engine.
Key Features to Look For
When you’re shopping for gears for your 37-inch tires, keep these important features in mind:
- Gear Ratio: This is the most important number. It tells you how many times your driveshaft spins for every one spin of your wheel. For 37-inch tires, you’ll typically want a lower (numerically higher) gear ratio. Think 4.56, 4.88, or even 5.13. A lower ratio means more torque, which is the twisting force that gets your tires rolling.
- Durability: You need gears that can handle the stress of bigger tires and off-road use. Look for gears made from strong materials.
- Brand Reputation: Some brands are known for making high-quality, reliable gears. Stick with well-known names in the off-road and automotive aftermarket industry.
- Ease of Installation: While installing gears can be tricky, some kits come with all the necessary parts and clear instructions.
Important Materials
The quality of the materials used in your gears directly impacts their performance and lifespan.
- Forged Steel: This is the gold standard. Forged steel gears are heated and shaped under immense pressure. This makes them incredibly strong and resistant to wear and tear. They can handle the abuse of off-roading and daily driving with large tires.
- Heat Treatment: Proper heat treatment is crucial. It hardens the steel and makes it more durable. High-quality gears undergo precise heat treatment processes.
Factors That Improve or Reduce Quality
Several things can make your gears better or worse.
Factors That Improve Quality:
- Precision Machining: Gears are cut with extreme accuracy. This ensures they mesh smoothly and efficiently. Smooth meshing reduces noise and wear.
- Strict Quality Control: Reputable manufacturers test their gears thoroughly. This catches any defects before they reach you.
- Proper Lubrication: Using the right gear oil is essential. It keeps the gears cool and prevents friction.
Factors That Reduce Quality:
- Poor Material Choice: Using cheaper, weaker metals makes gears more likely to break.
- Imprecise Manufacturing: Gears that aren’t cut correctly will grind and wear out faster.
- Incorrect Installation: Even the best gears won’t work well if they aren’t installed by someone who knows what they’re doing.
User Experience and Use Cases
How will new gears change your driving experience?
- On-Road Driving: With the right gears, your truck will feel more responsive. Acceleration will be quicker. Highway cruising will be smoother, and your engine won’t be screaming at high RPMs. This makes daily driving much more enjoyable.
- Off-Roading: This is where the real magic happens. You’ll have more low-end torque to crawl over rocks and obstacles. Your vehicle will feel more controlled on steep inclines. You can tackle tougher trails with confidence.
- Towing: If you tow a trailer, new gears will make a huge difference. Your truck will have the power to pull your load without struggling. This is safer and less stressful for both you and your vehicle.
Frequently Asked Questions (FAQ)
Q: What gear ratio is best for 37-inch tires?
A: For 37-inch tires, gear ratios like 4.56, 4.88, or 5.13 are generally recommended. The exact best ratio depends on your vehicle’s engine, transmission, and how you use it.
Q: Will I need anything else besides gears?
A: Yes, you’ll likely need new gear oil, sealants, and possibly shim kits. Many reputable brands offer complete installation kits.
Q: How long does it take to install new gears?
A: Gear installation is a complex job. It typically takes a professional mechanic 4-8 hours.
Q: Can I install gears myself?
A: It’s a challenging task that requires special tools and a lot of precision. Most people leave this job to experienced professionals.
Q: Will changing gears affect my speedometer?
A: Yes, larger tires and re-gearing will affect your speedometer. You’ll need to recalibrate it to ensure accurate readings.
Q: How much does it cost to re-gear for 37-inch tires?
A: The cost can range from $1,000 to $2,500 or more, depending on the parts and labor costs in your area.
Q: What happens if I don’t re-gear with 37-inch tires?
A: Your vehicle will feel sluggish, accelerate slowly, and your engine will work much harder, potentially leading to increased wear and fuel consumption.
Q: Can I tow effectively with 37-inch tires and stock gears?
A: It will be very difficult and put a lot of strain on your engine and transmission. Re-gearing is highly recommended for towing with larger tires.
Q: How do I know if my gears are worn out?
A: Signs of worn gears include whining or humming noises that change with speed, clunking sounds, and a noticeable loss of power.
Q: Are there different types of gears for different differentials?
A: Yes, different vehicles have different types of differentials (e.g., Dana 30, Dana 44, Ford 9-inch). You must buy gears specifically designed for your vehicle’s differential.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.
Hi, I’m Mette Morgan—a lifelong pet enthusiast and the heart behind PetNobs.com.. My journey with animals began at an early age, and over the years, I’ve gathered invaluable experiences and insights on everything from everyday pet care to the unique quirks each animal brings to our lives. Here at PetNobs, I share my genuine passion, practical tips, and personal stories to help you create a loving, well-informed environment for your furry, feathered, or scaled friends. Welcome to my little corner of the pet world—it’s a joy to have you here!