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Advance Adapters Atlas 4-Speed Transfer Cases ATLAS4-38

Advance Adapters ATLAS4-38 - Advance Adapters Atlas 4-Speed Transfer Cases

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Transfer Case, Atlas, 4-Speed, 356-T6 Heat Treated Aluminum Alloy, Each

  • This part is normally shipped directly from the manufacturer / Supplier.

  • The part ADD-ATLAS4-38 has an additional shipping charge of $8.00 per item due to its large size and/or weight.

Estimated Ship Date: 10/8/2014 (if ordered today) Would you rather pick it up? Select Location

Manufacturer's Part Number: ATLAS4-38
Part Type: Transfer Cases
Summit Racing Part Number: ADD-ATLAS4-38

In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These Atlas 4-speed transfer cases from Advance Adapters have essentially two parts. The first part is the reduction housing. This housing holds a 6-gear planetary assembly that has a low range of 2.72:1 and a high range of 1:1. They use a planetary assembly that was originally run in an NP241-HD transfer case. This assembly has been rated to withstand 5,555 ft.-lbs. of torque and up to 11,000 lbs. gross vehicle weight. The second part of the 4-speeds may look the same as the standard 2-speed Atlas, but it does have some differences. The main case of the 4-speeds is the same raw casting but has some machining variations to make it into a 4-speed. The main case functions independently from the front reduction housing and retains all of the normal Atlas features. When all of this is put together, you get these new legendary Atlas transfer cases with the best combination of gear ratios (1:1, 2.0:1, 2.7:1, and 5.4:1) or (1.1, 2.7:1, 3.8:1, and 10.3:1).


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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