Installation Time
(approx) 6 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
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Alloy USA Dana 40 Rear Axle Ring and Pinion Gear Kit; 4.10 Gear Ratio (18-23 Jeep Wrangler JL Rubicon)
Item J139141-JL
Product Information
Features, Description, Q&A, Specs & Installation
Features
- Designed for Street or Off-Roading Applications
- Features a 4.10 Gear Ratio
- Comes with a 30-Spline Pinion
- Features 10 Ring Gear Bolts
- High-Quality 8620 Steel Alloy
- Professional Installation Recommended
- Worry-Free 10-Year Warranty
- Fits All 2018-2023 Jeep Wrangler JL Rubicon Models
Description
Reliable Off-Road Performance. Set up your Jeep for extreme adventures with this 4.10 Gear Ratio Alloy USA Dana 40 Rear Axle Ring and Pinion Gear Kit. Its lower ring and pinion gear ratio allows you to outfit your trail-going Jeep with a larger set of tires so you can enjoy excellent clearance and superb off-road handling.
Optimized for Larger Tires. Installing larger diameter tires on your vehicle puts a lot of stress on the engine. This increases fuel consumption and reduces performance. But by using a ring and pinion gear with a lower ratio, your Jeep can regain power and improve its fuel economy.
Built to be Tough. Engineered for extremely rugged adventures, this Ring and Pinion Gear Kit is made from incredibly durable forged 8620 alloy steel for maximum strength. It has been built with the help of Gleason gear cutting technology to ensure precision and lasting durability.
Professional Installation Recommended. Setting up a ring and pinion gear kit on your vehicle may involve some intricate steps. That’s why ExtremeTerrain recommends the help of a professional to ensure proper installation and to get the best out of this kit.
Worry-Free 10-Year Warranty. Alloy USA covers this Rear Axle Ring and Pinion Gear Kit with a warranty against structural defects for 10 years from the date of purchase by the original owner. Some limitations apply. To find out more, you may contact customer support.
Application. This 4.10 Gear Ratio Alloy USA Dana 40 Rear Axle Ring and Pinion Gear Kit is designed to fit on all the 2018-2023 Jeep Wrangler JL Rubicon models.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Ring Gear
- (1) Pinion Gear
4.6
Reviews of Alloy USA Drivetrain Products (298)
Reviews of Alloy USA Drivetrain products have an average rating of 4.6 out of 5
Questions & Answers
10 More Questions
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I have been into Wranglers since I was young. My dad has owned quite a few over the years and if I wasn’t in a lifted wrangler I was in something lifted. When I was old enough to drive I bought a Cherokee and went through 3 of them before deciding I wanted a Wrangler. So I sold my Cherokee and sat o...
I have been into Wranglers since I was young. My dad has owned quite a few over the years and if I wasn’t in a lifted wrangler I was in something lifted. When I was old enough to drive I bought a Cherokee and went through 3 of them before deciding I wanted a Wrangler. So I sold my Cherokee and sat o...
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