Advance Adapters Atlas Transfer Case w/ Gear Ratio and Yoke Assembly Package
JL
Product Resources
Features & Product Details
The Advance Adapters Atlas gear-driven transfer cases are the ultimate in gearing and strength. With over 30,000 units sold, the Atlas 2 speed is the solution for combining both on and off-road performance.
The name is legendary and synonymous with rock crawling and off-road vehicle performance. Atlas Transfer Cases have won over the industry for their superior performance, bullet proof design and their ability to get you anywhere you want to go. The Atlas Transfer Case is sure to change the way your vehicle performs off-road. You will benefit greatly by understanding the Atlas characteristics and how to apply them for the ultimate in performance!
Jeep JL & JT to Atlas 2 speed: The Jeep JL with the 850RE 8-speed automatic with the 3.6L V6 or the turbo 4 cylinder and the D478 manual 6 speed with the turbo 4 cylinder, coupled to a Magna transfer case. This is the first year Jeep went away from its standard circular bolt pattern when coupling these two gear boxes. To couple these transmission to the Atlas, they will require a new adapter. P/N 50-9900 is for the Automatic and P/N 50-9901 if for the manual or P/N 50-9903 for the Jeep 392's & 4xE. 50-9904 Jeep JL DIESEL 8-Speed Automatic. The adapter is 7.75" which provides the needed length to clear the transmission cooling system. Also see Atlas adapters
JL and JT 2018 & newer Jeeps equipped with an automatic transmission will also require a Transmission Control Module flash to operate correctly with the new Atlas transfer case. Jeep coded the stock transfer case ratio of either the 2.72:1 or the 4.0:1 into this module and any different ratio in the transfer case will put the vehicle into a limp mode. A Jeep programmer like a Z Automotive or the Vgate OBD2 code reader with the Canbus phone app from jscan, work great. The exact ratios for the Atlas are required for re-programming the module.
The electronics of the JL stock transfer case need to be connected to the Atlas. The nice thing is we have you covered with kit 300377A. The kit 300377A with a programmer for the transmission control module will allows the JL to retain all the stock functions that it came with stock when installing an Atlas.
Gearing Options Available:
Diff Yoke Options Available:
Specifications
QUESTIONS & ANSWERS
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Q: ATLAS-PS-JL-M what else is needed Maverick909 19 days ago
I am looking at getting the atlas ATLAS-PS-JL-M but it doesn’t look like a complete kit. I don’t see the shift handles,cable, or wiring connections needed. What else is needed For installing this setup? - I have a jl 6speed manual sport S setup currently
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A: This is not the correct Atlas for a TJ/LJ. This is for the JL platform. Please call us at 866.601.5340 for more help on this one. Thanks
Northridge Chris @ Northridge4x4 17 days agoWas this answer helpful?
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This Part Fits
This item is non application specific.
Please verify compatibility before purchase. May require some modification for proper installation.