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Notice! Fulfillment staff will be off site 9/30-10/6. Orders will be processed the following week of 10/9/23. Please excuse any delays.
Notice! Fulfillment staff will be off site 9/30-10/6. Orders will be processed the following week of 10/9/23. Please excuse any delays.

NP261 Rebuilt Transfer Case

***Current lead time on transfer cases is 3 weeks from order to shipping. We intend to stock these in the near future. ***

The NP261 was built by New Process (New Venture) and is a reliable chain-driven transfer case used primarily in Chevrolet and GMC vehicles from 1999-2007. This unit has a left side drop output and a low gear ratio of 2.72 to 1 with 2 high, 4 high, neutral and 4 low. The units we provide have 29 and 32 spline inputs and 32 spline outputs for both front and rear slip yokes. No core charge. 

Timberline now offers rebuilt units for van builders with the following details
-Case inspected, dismantled, solvent-based heated cleaning, smoothed and painted with high build grey paint. 
-Replacement of hard parts showing any signs of wear or potential failure, replacement of chain and any other hard parts needed. 
-Replacement of gaskets, seals, and bearings with OE quality parts and Nachi/Koyo bearings
-Rear case half inspected, replaced with Aluminum half as needed, case saver installed on magnesium units. 
-Replacement of range sensor and verified range reading. 
-GM rod lever installed/included, common interference spots pre-shaved. 

Note: Units are rebuilt with remanufactured cases. Cases may show small pockmarks, imperfections, and chips. We do our best to make cases attractive and more importantly reliable, but cosmetic imperfections may be present. 

Why 261 notes: We have built G-series vans with 261, 241 and Magna 1225/1226 transfer cases. Nothing holds up as well as the 261 and runs as quiet when you're basically sitting on top of the transfer case with a hole down through the floor. 

Fitment Designed for: 

Van Side -
2003-2022 Chevrolet Express/ GMC Savana G2500/G3500/G4500
4L80 - 32 Spline input
6L90 - 29 Spline input (Timberline Adapters)
8L90 - 32 Spline input

Tools Required:

Unit requires hand tools only to mount, our front diff mounting solutions require additional tools. 


Transfer case, range sensor, gasket, stud lock-nuts

Tips / Skill Level:

1-10 (10 being most difficult) Level 3

This product may work with other model vehicles. 

Shipping, Fulfillment, Taxes, Quality, and Returns

  • Shipping: Our components are carefully wrapped and packaged and ship UPS, USPS, or FedEx, depending on what is available. If you require a particular carrier, please contact us ahead of your purchase.  Customers in Colorado may arrange for in-person pickup within 1-2 business days of purchase taking noted lead times into consideration. 
  • Shipping/Fulfillment time for components: We typically ship within 1-2 business days of your order and we carefully monitor our inventory. In the event that we are unable to meet that timeframe, we will contact you and arrange either a full refund or a timeframe for fulfillment agreeable to the customer. 
  • Taxes: Colorado residents must pay sales tax of 7.5%, no sales tax is collected on out-of-state shipments currently. 
  • Quality and Returns: We are consistently complimented on the quality of our products and the ease of install. Components are hand-built here almost exclusively in Colorado by seasoned professionals who are fanatics about design and execution. If you are in any way disappointed in the components we will issue a full refund less the cost of shipping when the product is returned. If you decide to return any components that didn't apply to your build or you changed your mind about, shipping and a 15% restocking fee will be deducted from the purchase refund.