Atlas Jeep Transfer Case for Jeep JK Wrangler
Atlas gear-driven transfer cases represent the ultimate combination of strength, precision, and gearing control for serious off-road use. With over 30,000 units sold, the Atlas transfer case has earned legendary status among rock crawlers and off-road enthusiasts who demand uncompromising performance both on and off the trail.
Available from Advance Adapters as a built-to-order Atlas Jeep JK transfer case, this upgrade transforms your Wrangler into a highly capable off-road machine. Since its introduction in 1995, the Atlas name has become synonymous with durability, reliability, and superior low-range performance—making it one of the most trusted aftermarket Jeep transfer cases on the market.
Built-to-Order Jeep JK Transfer Case
Our Jeep JK transfer case builders allow you to configure your Atlas exactly to your needs. You can choose gear ratios, yokes, and other options to match your driving style, tire size, and terrain. Once your order is placed, an Advance Adapters technical specialist will contact you to confirm all specifications before assembly begins, ensuring correct fitment and compatibility.
Each Atlas JK transfer case includes the transfer case assembly, sight tube, cable shifters, yokes, electronics, warranty, installation instructions, and gear oil—so you have everything needed for a successful installation.
Note: Driveshaft modifications are required.
- 2-Speed Atlas Jeep Transfer Case Applications
- Compatible with 2007–2018 Jeep JK Wrangler
- Available for manual and automatic transmissions
- Ideal for trail rigs, overland builds, and daily-driven Jeeps
- 2-Speed Specifications
- Gears: Helical-cut
- Case: 356-T6 heat-treated aluminum
- Weight: 110 lb (dry)
- Bearings: Needle and tapered rollers
- Lubrication: 2 quarts (1.9 liters)
- Dimensions
- 1310 CV: 13.842 in
- Flange 1300: 12.224 in
- 1350 CV: 14.027 in
- 2-Speed Gear Ratios
- High Range: 1:1
- Low Range: 3.0:1, 3.8:1, 4.3:1, or 5.0:1
- 4-Speed Atlas Jeep Transfer Case Applications
- Compatible with 2007–2018 Jeep JK Wrangler
- Manual transmissions: all years
- Automatic transmissions: 2007–2011 only
- Designed for extreme off-road and competition use
- 4-Speed Specifications
- Gears: Helical-cut
- Case: 356-T6 heat-treated aluminum
- Weight: 130 lb (dry)
- Bearings: Needle and tapered rollers
- Lubrication: 2.5 quarts (2.4 liters)
- Length: 18.8 in (1310 CV)
- 4-Speed Gear Range Options
- Multiple planetary gear combinations allow for three unique low-range modes, with ratios ranging from 1.5:1 up to 11.70:1, giving unmatched control for technical terrain.
- Atlas Transfer Case Features
- Universal case with right or left drop
- Bulletproof, gear-driven design
- Fully synchronized
- Shift-on-the-fly capability
- Twin-stick cable shifters
- 2WD and 4WD High
- 2WD Low (rear axle)
- 2WD Low (front axle – front dig capability)
- 4WD Low
Several of these features are not available on the factory NP241 Jeep transfer case.
Jeep Transfer Case FAQs
What does the transfer case do in a Jeep?
The transfer case distributes power to the front and rear axles and controls 2WD and 4WD operation. Advanced Jeep transfer cases like the Atlas also provide low-range gearing to increase torque and control off-road.
How do I know if my Jeep transfer case is bad?
Common symptoms include gear oil leaks, grinding or chattering noises, difficulty shifting, burning smells, warning lights, or the vehicle popping out of gear.
What happens when a transfer case goes bad?
A failing transfer case can cause poor traction, difficulty engaging 4WD, uneven power delivery, and driveline damage if not addressed.
Vehicle Applications and Installation Information:
Frequently Asked Questions
What does the transfer case do in a Jeep?
The transfer case distributes power to the front and rear axles while ensuring both rotate at the same speed in 4WD mode. Some transfer cases, including the Atlas 2 and Atlas 4, also have one or more low-range gear sets to change torque delivery.
How do I know if my Jeep transfer case is bad?
Common signs of a faulty transfer case include:
- Puddles of gear oil underneath the vehicle.
- Unusual sounds like grinding and chattering.
- Problems shifting gears or getting stuck in certain gears.
- Smoke or a burning smell.
- A 4WD dash warning light.
What happens when a transfer case goes bad?
If your transfer case fails, it can cause performance issues such as difficulty switching between 2WD and 4WD, uneven power delivery that hurts traction and unexpectedly popping out of gear.
