TNT Transfer Case
Dodge Vehicle Transfer Case Models
Re-manufactured Transfer Cases
TNT Transfer Case wanted to share some information about the different Dodge Transfer Cases available. Some of this information has been gathered from other Dodge enthusiasts and professional mechanics that want to share their knowledge. We hope this information can help you determine which transfer case you need and any upgrades that might be available. We hope this might help in identifying the transfer case found on your Dodge Vehicle.
Let’s face it, sometimes SUV’s, 4×4’s and other Offroad vehicles, are a necessary part of life. Use your off road vehicle wisely. We replace all bearings, seals, fork pads, viscous (when the unit has them) and chains (chains are Morse and only Morse chains). Each Transfer Case is unique and specific to the vehicle. Please locate the identification tag on your transfer case and write down the Model & Assembly Numbers. These numbers are critical in determining the exact transfer case for your vehicle.
Dodge NP231 Transfer Case
The NP231 has a positive reputation for being a dependable model, coming with an aluminum casing and a chain drive system.The NP231 is a good choice for upgrades and modifications to make it even more durable than it already is. It is found in Dodge pickup trucks, the Dakota, as well as the Durango. Dodge first used the NP231 series transfer cases for the 1988 Dakota. During it’s production life, the Dodge NP231 was offered in non-synchronized and synchronized configurations and in both standard duty and heavy duty versions.
Usage: The NP231D or NP231DLD found in the Dakota starting in 1988 & newer. Ram 1500, 1994-2001 1/2 ton 4x4s have NP231DHD transfer cases.
Dodge NP241 Transfer Case
The NV241DLD, NP241DHD. Starting in 1994, the Ram 2500 transfer case was the NV241DLD (Dodge Light Duty). Optional on the 2500 and standard on the 3500 was the NV241DHD (Heavy Duty). There were numerous design changes in the NP241DLD/DHD during its production life, making parts selection tricky without the round transfer case build tag affixed to the rear case half. Most 1999 to 2002 Ram 2500 4×4 trucks with the High-Output Cummings Diesel NV5600 6 speed transmission use the NV241DHD. Despite the many assembly variations, there are a few common characteristics shared by both DLD and DHD models. All these cases will have a slip yoke rear output, left drive chain front output, with CV range and mechanical shift engagement. The NP241DHD differs from the earlier NP241D used from 1987 to 1993.
Usage: (NP241DHD) 1994 to 1997 Dodge Ram 2500 and Ram 3500 4×4 trucks, 1998 to 2002 Dodge Ram 2500 and Ram 3500 4×4 trucks. NP241DLD; 1998 to 2002 Dodge Ram 2500 4×4 trucks.
Dodge NP271 Transfer Case
The NP271 is chain driven, manual shift and a part time transfer case. The output is on the driver-side with center rear output. Utilized in Dodge and Ford pickups from 1999 and newer. This heavy-duty design with a rating of a gross vehicle weight of 17,500 lbs in vehicles with 5.3 L to 7.3 L diesels. The NP271 is a heavy duty case with a 6 pinion planet and relies on a 1.5″ wide chain, specifically designed for durability with emphasis for high strength and long-term durability.
Usage: 2003-2012 Dodge Ram 2500, 3500 and 4500. Ram 5500 4×4 trucks are a NV271D.
Dodge NP273 Transfer Case
The NP273 is a chain driven model cast in aluminum and acts as an improvement to the 271. It adds an electrical shift feature and has enhanced parts to provide better durability for larger applications. The NP273 can have issues with case failure caused from lack of lubricant reaching the range hub and range fork.
Usage: electric shift option for all 2003-2012 Dodge Ram 2500, 3500 and 4500. Ram 5500 4×4 is a NV273D.
TNT Transfer Case provides all of our rebuilt and new transfer cases with a 24 month / 70,000 mileage warrantyagainst defects in material and workmanship to the original purchaser from the purchase date.
All units are shipped DRY. Please refer to the owners manual or dealer specifications for the proper lube. The warranty will be voided if the wrong lube is used.