If you're looking to upgrade your Jeep JK with 35-inch tires, you'll need to make sure you have the right gears to match. The factory gear ratio may not be optimal for larger tires, and choosing the right aftermarket gears can improve performance, fuel economy, and overall drivability. So, what are the best gears for 35-inch tires on a Jeep JK? Well, it depends on a few factors such as engine torque, desired performance, and towing capacity. However, some of the most popular gear ratios for 35-inch tires include 4.56, 4.88, and 5.13. Each offers improved torque and acceleration over stock gears, but the right choice for your Jeep will depend on your specific needs and driving style. Let's take a closer look at each option.
Top product ratings
Jeep JK Dana 30 Front Differential Master Overhaul Kit
The USA Standard Gear Master Overhaul Kit is designed for the Jeep JK Dana 30 Front Differential. It includes high-quality bearings and races from Koyo, as well as carrier bearings, pinion bearings, a pinion seal, a complete shim kit, ring gear bolts, a pinion nut, a crush sleeve, and oil baffles and slingers. This kit provides confidence and peace of mind for your Jeep JK Dana 30 Front Differential overhaul.
Specifications | Description |
---|---|
Tags | |
Brand | USA Standard Gear |
Model | Master Overhaul Kit fits Jeep JK Dana 30 Front Differential |
Item Weight | 6.9 pounds |
Product Dimensions | 12 x 12 x 3 inches |
Manufacturer Part Number | ZK D30-JK |
Position | Front |
Best Sellers Rank | #7,385 in Automotive |
Price | $149.00 |
Quality | Koyo bearings and races made in Japan |
Features | Carrier bearings, pinion bearings, pinion seal, shim kit, ring gear bolts, pinion nut, crush sleeve, oil baffles, and slingers |
Reasons to buy:
- Good replacement parts.
- Great quality, bearings are made in Japan and used in Toyota's and Honda's.
- Exact fit for a 97-06 short axle TJ kit.
- Has everything you need for a rebuild.
- Fast shipping.
Reasons to avoid:
- The ID of the pinion shims is larger than the pinion shaft of the 55-64 Chevy 3rd member.
- The inner pinion bearing does not fit a standard 7.625 GM Differential.
- Some parts are not needed for a D44 rebuild, so the kit may be more than you need if you are working on this specific model.
Compare to other products
The USA Standard Gear Master Overhaul Kit for Jeep JK Dana 30 Front Differential has received mostly positive reviews from customers, with an average rating of 4.5 out of 5 stars from 2532 ratings. Customers have praised the quality, value, and functionality of the auto part, mentioning that it is a complete kit with good components and perfect for Ford 4.10 gears. Some have also highlighted the ease of installation. However, there are a few negative reviews that mention issues with the fit, bearing quality, and shim selection.
When compared to other similar products in the market, this overhaul kit stands out for its comprehensive nature, including carrier bearings and races, pinion bearings and races, a pinion seal, a complete shim kit, ring gear bolts, a pinion nut, a crush sleeve, and oil baffles and slingers. The kit is also competitively priced at $149.00, offering a significant discount from its original price of $313.54.
In terms of brand reputation, USA Standard Gear specializes in providing high-quality drivetrain components for a variety of vehicles, and their products are known for their durability and performance. This particular kit is compatible with Jeep JK Dana 30 Front Differentials, and the manufacturer also offers a range of other kits for different vehicle makes and models.
Overall, the USA Standard Gear Master Overhaul Kit is a popular choice among customers looking for a comprehensive and affordable solution for their Jeep JK Dana 30 Front Differential. While there are a few negative reviews, the majority of customers have had positive experiences with the product, highlighting its quality and ease of use.
For whom it is recommended
I would recommend the 'Jeep JK Dana 30 Front Differential Master Overhaul Kit' to anyone who owns a Jeep JK with a Dana 30 front differential and is looking to overhaul or upgrade their vehicle's differential. This kit is designed specifically for the Jeep JK model with the Dana 30 front differential, so it would be a suitable option for those vehicle owners.
The kit includes a range of high-quality parts, such as carrier bearings and races, pinion bearings and races, a pinion seal, a complete shim kit, ring gear bolts, a pinion nut, and oil baffles and slingers (if applicable). It offers a comprehensive solution for those looking to maintain or upgrade their Jeep's differential, ensuring a smooth and reliable driving experience.
Additionally, based on the reviews, this product seems to be well-received by customers, with many praising the quality, value, and functionality of the auto part. Therefore, it would be a recommended choice for anyone seeking to overhaul their Jeep JK's Dana 30 front differential.
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Yukon Gear & Axle YGK002 for Jeep XJ/YJ Dana 30/35 4.88 Ratio
Yukon Gear and Axle offers an extensive line of general and high performance ring and pinion gear sets for a variety of automotive applications. This particular gear and install kit is designed for Jeep XJ and YJ models with Dana 30 front and Model 35 rear axles, and features a 4.88 ratio. The kit includes front and rear ring and pinion gear sets, as well as differential rebuild and master overhaul kits, providing everything needed for a complete re-gear of the front and rear differential.
Specification | Description |
---|---|
Brand | Yukon Gear & Axle |
Manufacturer | Yukon Gear & Axle |
Item Weight | 33.7 pounds |
Product Dimensions | 12 x 14 x 20 inches |
Item Model Number | YGK002 |
Exterior | Machined |
Warranty | 1 Year |
Quality | Gears are well-machined and easy to install. Includes Timken bearings and Spicer seals. |
Features | Complete package for front and rear differential, includes ring and pinion gear sets, master overhaul kit, and differential rebuild kits. |
Vehicle Compatibility | Jeep XJ and YJ with Dana 30 front and Model 35 rear |
Ratio | 4.88 |
Price | $470.33 |
Reasons to buy:
- Complete package for front and rear differential re-gearing, including ring and pinion gear sets and master overhaul kits.
- Designed for demanding conditions and high performance.
- Includes Timken bearings and Spicer seals, ensuring quality and reliability.
- 1-year warranty provided.
- Positive reviews highlighting the ease of installation and the brand's reliability.
Reasons to avoid:
- Some components specific to certain Jeep models might be missing and need to be purchased separately, causing inconvenience and additional expenses.
- One review mentions that the product is made in China, which may be a concern for those who prefer USA-made products.
Compare to other products
The Yukon Gear and Axle YGK002 Gear and Install Kit is a popular choice for those looking to upgrade their Jeep XJ or YJ with Dana 30 front and Model 35 rear axles. It offers a complete package that includes front and rear ring and pinion gear sets, as well as comprehensive master overhaul kits, providing everything needed for a differential upgrade.
Compared to other similar products, the YGK002 stands out for its inclusion of both front and rear gear sets in a single package, streamlining the purchasing process for those needing to upgrade both differentials. The kit also features a wider range of components, including bearings, seals, and other necessary parts for a complete overhaul.
However, it's important to note that some reviewers have mentioned that certain components, such as axle bearings and output seals, may need to be purchased separately, depending on the specific vehicle configuration.
In terms of price, the YGK002 is positioned as a mid-range option and offers a good balance between cost and the range of components included. It is important to consider the specific needs of your vehicle and the scope of the upgrade project when comparing this product to others in the market.
Overall, the Yukon Gear and Axle YGK002 Gear and Install Kit is a competitive option for those seeking a comprehensive and convenient solution for their Jeep differential upgrade, offering a good balance of features and value.
For whom it is recommended
I would recommend the 'Yukon Gear & Axle YGK002 for Jeep XJ/YJ Dana 30/35 4.88 Ratio' to anyone who owns a Jeep XJ or YJ with a Dana 30 front and Model 35 rear axle and is looking to upgrade their vehicle's performance and drivability.
This product is ideal for off-road enthusiasts, rock crawlers, and those who tow heavy loads or frequently drive in challenging terrain. The 4.88 gear ratio provides increased torque and improved acceleration, making it easier to navigate obstacles and haul heavy loads.
In addition, this particular kit includes everything needed for a complete front and rear differential overhaul, making it a convenient and comprehensive solution for those looking to maintain or upgrade their Jeep's drivetrain.
It is important to note that this kit is vehicle-specific, so it is essential to ensure that the buyer's Jeep model and axle specifications match the product requirements before purchase.
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Yukon JK Dana 30 Short Pinion Ring & Pinion Gear Set
Yukon Gear is a well-known brand that offers high-performance ring and pinion gear sets designed for Jeep JK Dana 30 short reverse pinion differentials. These gear sets are made from 8620 steel, which provides exceptional strength and durability, ensuring reliable performance even in demanding conditions. The set includes 10 ring gear bolts and features a 24-spline short pinion for a quiet and smooth ride. With a 1-year warranty, this product is a reliable choice for those seeking quality and performance.
Specification | Description |
---|---|
Brand | Yukon Gear |
Material | 8620 Steel |
Item Weight | 5.4 pounds |
Product Dimensions | 16 x 12 x 6 inches |
Country of Origin | Republic of Korea |
Features | Quiet Running Gear Sets, 10 Ring Gear Bolts, 24 Spline Short Pinion |
Warranty | 1 Year |
Quality | Designed for performance in demanding conditions |
ASIN | B00ERXZMHM |
Price | $218.59 |
Reasons to buy:
- The product has an average rating of 4.3 out of 5 stars from 26 customer reviews, indicating that it is a well-received product.
- It is designed for demanding conditions and is made from high-quality 8620 steel.
- The product includes a 1-year warranty, ensuring peace of mind and protection for your purchase.
- It is a quiet-running gear set, which is an important feature for many buyers.
- The product is Prime eligible, offering free and fast delivery for Prime members.
Reasons to avoid:
- There are a limited number of units in stock, which may be a concern for those who require multiple units or want to purchase in the future.
- The product is not an Amazon's Choice item, which may suggest that there are better-rated or more popular alternatives available.
- Some reviews mention that the product was returned and repackaged, and there are concerns about the lifespan of the gears.
- One review mentions that the product is made in China, which may be a concern for those who prefer products made in the USA.
Compare to other products
The Yukon Gear & Axle High-Performance Ring and Pinion Gear Set for Jeep JK Dana 30 Short Reverse Pinion Differential has received mostly positive reviews from customers, with an average rating of 4.3 out of 5 stars. Many customers have praised the product for its performance and affordable price. However, there are also a few negative reviews, with some customers reporting that the product was returned and repackaged, and that the gears did not look like the Yukon gears they were familiar with. It's important to note that the reviews for this product are relatively limited, with only 26 ratings, which may not be fully representative of the overall customer experience.
When compared to other similar products in the market, the Yukon Gear & Axle set offers a competitive price and performance combination. While there may be other brands that offer more premium features or specialized designs, the Yukon Gear & Axle set provides a good balance between quality and value. It is also important to consider the specific vehicle and differential requirements when making a purchase decision, as different vehicles may have unique compatibility and performance needs.
For whom it is recommended
I would recommend the 'Yukon JK Dana 30 Short Pinion Ring & Pinion Gear Set' to anyone who owns a Jeep JK with a Dana 30 differential and is looking to upgrade or replace their ring and pinion gears. These gears are designed for high performance and quiet running, and are made from durable 8620 steel. They are a good choice for those seeking improved performance and reliability, especially in demanding conditions or off-road scenarios.
It is important to note that this product is specifically designed for the Jeep JK model with the Dana 30 differential. If you are unsure about the compatibility with your vehicle, it is always best to consult a mechanic or a Jeep specialist to ensure the correct application.
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Jeep JK Dana 30 Reverse Rotation Ring & Pinion Gear Set
The USA Standard Gear Replacement Ring and Pinion Gear Set is the perfect solution for your Jeep JK Dana 30 reverse rotation differential. With a 4.56 axle ratio and 10 ring gear bolts, this gear set is vehicle-specific and designed to provide a quality, quiet, and affordable solution for your OEM replacement. Made with rigorous quality testing and inspections, this product exceeds OEM specifications and comes with a one-year warranty.
Specification | Description |
---|---|
Brand | USA Standard Gear |
Model | ZG D30SR-456JK |
Item Weight | 10.05 pounds |
Product Dimensions | 16 x 12 x 6 inches |
Country of Origin | Republic of Korea |
Axle Ratio | 4.56 |
Ring Gear Bolts | 10 |
Fit Type | Vehicle Specific |
Warranty | 1-year standard |
Quality | Rigorous in-house testing and inspections |
Features | Quiet, OE and aftermarket ratios available |
Price | $174.76 |
Reasons to buy:
- Affordable price for a ring and pinion gear set
- Quiet gear set for OEM replacement
- Rigorous in-house quality testing and inspections
- Wide variety of product options for various vehicle models
- One-year warranty against manufacturing defects
Reasons to avoid:
- Only two left in stock, indicating potential supply issues or high demand
- Not a well-known brand, which may raise concerns about quality or reliability
- Limited number of reviews, which may make it difficult to fully assess the product's performance and durability
- Product is vehicle-specific, so it may not be compatible with all vehicles
Compare to other products
The USA Standard Gear Ring and Pinion Gear Set is a relatively affordable option for those seeking an OEM replacement, with a price of $174.76, compared to the original price of $185.71. It offers a standard one-year warranty and is designed to exceed OEM specifications.
While there are no direct comparisons available in the provided data, a similar product, the USA Standard Gear (ZG F10.25-355-S) Ring and Pinion Gear Set for Ford 10.25" Differential, is also offered by the same brand and is featured in a related video. This product is designed for a different vehicle make and model, but it demonstrates the range of offerings from USA Standard Gear.
Overall, the USA Standard Gear Ring and Pinion Gear Set seems to be a competitively priced option for Jeep JK owners seeking an OEM replacement with a standard warranty.
For whom it is recommended
I would recommend the 'Jeep JK Dana 30 Reverse Rotation Ring & Pinion Gear Set' to anyone who owns a Jeep JK with a Dana 30 reverse rotation differential and is looking to replace their ring and pinion gears. This product is designed as an OEM replacement for Jeep JK models with a 4.56 axle ratio and comes with 10 ring gear bolts.
The USA Standard Gear ring and pinion sets are known for their quality and quiet operation, and the company conducts rigorous in-house quality testing and inspections to ensure product reliability. With a standard one-year warranty against defects, customers can have added confidence in their purchase.
Based on the product details and positive reviews, this product would be a great option for those seeking an affordable and reliable solution for their Jeep JK's differential.
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Spider Gear Set for Dana 44 JK Non-Rubicon Rear, 30 Spline
The USA Standard Gear ZIKD44-S-30-JK Open Spider Gear Set is a high-quality, OEM replacement spider gear kit for the Dana Spicer 44 JK non-Rubicon rear differential with 30 splines. This product offers a perfect fit and easy installation at a great value.
Specification | Description |
---|---|
Brand | USA Standard Gear |
Model | ZIKD44-S-30-JK |
Item Weight | 4.68 pounds |
Product Dimensions | 13 x 13 x 3 inches |
Country of Origin | India |
Fit Type | Vehicle Specific |
Quality | High-quality components, perfect fit, easy installation, and simple differential overhaul. |
Features | Spider gear kit, 30 spline, for Dana Spicer 44 JK non-Rubicon rear differential. |
Price | $175.54 |
Reasons to buy:
- Customers have mentioned that the product fits perfectly in their vehicles.
- The components look high-quality, and the differential overhaul is easy and simple.
- The package quality is good, and the product was received on time.
- The product is reasonably priced and offers good value for money.
Reasons to avoid:
- Some customers have reported that the product did not fit their vehicles, despite checking vehicle fitment.
- One customer experienced a complete failure of the gears after approximately three and a half weeks of use, and was unable to claim a warranty as it had expired.
Compare to other products
The USA Standard Gear ZIKD44-S-30-JK Open Spider Gear Set is a popular choice for those looking for an affordable and reliable option for their Dana Spicer 44 JK Non-Rubicon rear differential. With a 4.3-star rating and over 1300 reviews, it is a well-received product in the automotive replacement differential assembly kits category.
Compared to other similar products, this gear set offers a good balance between price and quality. While there are some mixed reviews about the performance and longevity of these gears, many customers have reported a perfect fit and easy installation. The components appear to be of good quality, and some have noted that their vehicles are now quieter after the installation.
It's important to note that this particular gear set is not a direct fit for all vehicles. In some cases, customers have experienced issues with the spider gears not sliding into position correctly, which may be due to variations in the differential carrier.
Overall, the USA Standard Gear ZIKD44-S-30-JK Open Spider Gear Set is a competitive option in its category, offering a combination of affordability, quality, and performance that has been well-received by a significant number of customers.
For whom it is recommended
I would recommend the 'Spider Gear Set for Dana 44 JK Non-Rubicon Rear, 30 Spline' to anyone who owns a vehicle with a Dana Spicer 44 JK Non-Rubicon rear differential and is in need of a replacement or upgrade. This product is designed to fit vehicles with a 30 spline axle, and it is important to ensure that your vehicle's differential matches this specification before purchasing.
Based on the reviews, this product seems to be well-received by customers, with many praising the fit, quality, and value it offers. It is described as a good OEM replacement option, offering a simple and easy differential overhaul.
Therefore, I would recommend this product to vehicle owners who are looking for a reliable and affordable solution to their Dana Spicer 44 JK Non-Rubicon rear differential needs. It is always a good idea to consult a professional or a mechanic to ensure the correct fitment and installation of such automotive parts.
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Frequently asked questions
The best gear ratio depends on your engine, transmission, and intended use. For the 3.8L engine with a manual transmission, a 4.88 gear ratio is recommended. If you have the automatic transmission, a 5.13 or 5.38 gear ratio is suggested. The automatic transmission has a tall overdrive, so gearing too low should be avoided as it may affect performance.
Consider your intended use, be it highway driving, off-roading, rock crawling, or a mix. The gear ratio affects torque, horsepower, fuel economy, and acceleration. For example, taller gearing provides better fuel economy and higher top speed, while shorter gearing offers more torque and better acceleration for off-road use.
If you notice a decrease in performance, such as sluggish acceleration or constant downshifting when driving up hills, you may need to regear. Larger tires can also impact performance, as they increase the diameter, rotational mass, rolling resistance, and weight, making it harder for your drivetrain to move the vehicle.
The cost of re-gearing your Jeep JK can vary depending on the extent of the work and the specific parts required. A complete gear overhaul kit can range from $600 to $1,200. Additionally, you may need to upgrade your differential carrier, which can cost around $700 to $1,000. Labor costs can add up, with a ring and pinion gear installation costing approximately $500 to $700 per axle.
Yes, keep in mind that re-gearing may affect your speedometer and odometer readings. You may need to make adjustments or replace your speedometer gear to ensure accurate readings.