NP261HD Rebuilt Transfer Case Unit 1999-2007 6.0L | Chevy/GMC 2500/3500
Original price was: $1,085.00.$945.00Current price is: $945.00.
*Note*: Before Completing Your Order, Please Verify Vehicle Fitment And Our Core Return Policy. You Can Always Call Us At (888-926-3583) To Help Verify Your Order Details Or Confirm Fitment.
Shipping And Delivery: Orders Typically Ship Within The Same Or Next Business Day! (We Are Faster Than Every Other Remanufacturer)
We Cannot Ship To Hawaii & Alaska.
This NP261HD remanufactured transfer case for sale is a direct replacement unit designed for 1999–2007 GM & Chevy 2500 and 3500 series trucks. This is a manually shifted, heavy-duty transfer case identified by RPO code NP2. It serves as the OEM unit for vehicles equipped with 6.0L Vortec engines and features a 32-spline input shaft compatible with the 4L80E automatic transmission. To ensure a flawless fit for your GM vehicle, we kindly ask that you provide your vehicle information—and if possible, your Assembly #—in the field box before ordering. Once your order is placed, we’ll use this information to verify that we’re sending you the correct unit.
- Each NP261HD unit is fully rebuilt with upgraded internal components to enhance durability, lifespan, and overall performance. Our precision remanufacturing process includes a newly enhanced, upgraded aluminum rear case half OR a heavy duty case saver to address the widespread “pump rub” issue commonly found in 261 transfer cases. This upgrade prevents internal oil loss and potential failure, ensuring your transfer case performs flawlessly under towing, off-road, or commercial-use conditions.
*WE DO NOT NEED A CORE BACK FOR THIS UNIT OR A CORE FEE*
About This Unit
The NP261HD (New Process 261 Heavy Duty) was introduced as the OEM transfer case in 1999–2007 Chevrolet Silverado and GMC Sierra 2500/3500 trucks equipped with the 6.0L Vortec V8 engine. Designed for robust performance, the 261HD model features a chain-driven design, a 2.72:1 planetary low-range gear ratio, and a fixed rear output yoke. It was built specifically for use with the 4L80E automatic transmission in 4×4 applications and can be identified by RPO code NP2.
Common factory issues, such as pump rub damage and rear case wear, have been permanently resolved through our upgraded design and remanufacturing process. Assembly numbers include 12573381, 12579907, 12581002, 12588514, 15023641, 15772804, 24228406, 24238186, 24238839, 412458, 412542, and 412604. Please check your tag or provide your VIN for exact matching.
This 261 GM transfer case is currently on sale — making now the perfect time to replace or upgrade your OEM unit with a fully remanufactured model built to exceed factory standards.
Note: Before completing your order, please verify that you require the NP261HD model, not the NP261XHD. If you’re running a 6.6L Duramax or 8.1L engine with an Allison or ZF6 transmission, you may need the NP261XHD Transfer Case — the heavy-duty version built for higher torque GM applications.
Fitment Details
Vehicle Model / Series: Chevrolet Silverado, GMC Sierra 2500/3500
Build Type: Remanufactured and Upgraded
Vehicle Year: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Testing ADAPT (Advanced Dyno And Performance Testing) Our highest level of testing
Alternate Names: NP261, NP261HD, NV261, NV261HD, New Process 261
Make / Manufacturer: Chevrolet, General Motors, New Process, New Venture
Specifications: 32 Spline Input, Manual Shift
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Core Return Policy
Unlike our competitors, we do not need a core back or a core fee for this unit, you will automatically have an 18 month unlimited mileage warranty upon purchasing of the unit!
Return/Warranty Policy
What Is Our Warranty Policy?
All of our remanufactured units come with an 18 month unlimited mileage replacement warranty. 36 month extended warranties are also available to purchase!
What Happens If My Unit Is Defective?
If a unit becomes defective within 18 months of purchasing, a replacement Transfer Case will be provided at no cost. In some cases, we may choose to refund the money. Transfer Case World will pay for the cost of return shipping.
*Check Our Warranty Page For More Details*
Return/Warranty Policy
Are Returns Accepted?
Certainly, you may return an item within 14 days from the date of purchase. However, returns are not permissible if the product has been fitted into a vehicle, or has been altered, modified, or damaged. Refunds issued will not cover the initial shipping fees, and the responsibility for the cost of returning the item to us, which may vary by location and carrier rates, falls on the customer.
Will there be a restocking fee?
To process a return with us, you’ll need to obtain a return authorization. Please note that a restocking fee of 10% applies to all returns. Understanding the complexities of drivetrain diagnostics is exhausting, but before making a purchase, please ensure that the issue with your vehicle is indeed due to the transfer case. If a unit has been mounted in your vehicle, it becomes non-returnable. We encourage you to thoroughly verify the need for a transfer case replacement prior to placing an order. Should you need to initiate a return, reach out to us within 14 days of receipt.
Please note that return shipping costs will be the responsibility of the buyer.
