Transfer Case for 2001-2007 General Motors 6.6L | NTC261GXHD-1 | RANDYS Worldwide

New NP261XHD Transfer Case, 2001-2007 Silverado & Sierra, 2500 & 3500, 6.6L & 8.1L

Product Details

Zumbrota transfer cases are built to unparalleled standards. All new units are manufactured to OEM condition by craftsmen with over 150 years of combined industry experience. Cases and internal components are inspected and tested for manufacturing accuracy and checked for defects. Each new unit is fully built with 100% new components. All finished units are thoroughly spin tested for shiftability and noise. All transfer cases are shipped in high density plastic totes to eliminate damage in transit.

All units are quality inspected throughout the manufacturing process to maintain our quality standard.
All parts are cleaned and inspected prior to assembly.
100% new components.
Units are shipped in high density plastic totes to help eliminate in-transit damage.

Technical Notes

NP261XHD; New OEM Unit, Manual Shift, 29 Spline Input, Internal Spline Front Output Shaft, 31 Spline 1.608 Inch Outside Diameter Slip Yoke Style Rear Output Shaft, Option Code NP2, Hollander Numbers: 412-458, 412-542, 412-604, Other Numbers: UMT139-4

Warranty Information

Warranty information unavailable

Compatible Make / Model

Specification

Brand	Zumbrota Drivetrain
Prop65 Warning	WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Keywords	01,07,261XHD,261XHDTCASE,6.6,6SPD,8.1L,ALLISON,CASE,GM,MAN,NEW,NTC,OR,SHIFT,T,TC-02,TC261GXHD-1-NEW
Technical Notes	NP261XHD; New OEM Unit, Manual Shift, 29 Spline Input, Internal Spline Front Output Shaft, 31 Spline 1.608 Inch Outside Diameter Slip Yoke Style Rear Output Shaft, Option Code NP2, Hollander Numbers: 412-458, 412-542, 412-604, Other Numbers: UMT139-4
UPC	883584761846
ProxyNumber	76184
Width	28.00 in
Length	32.00 in
Depth	19.00 in
Weight	82.0000 lb

FAQs

Normally the flow of power goes from the transmission to the rear wheels through the driveshaft. However, when you shift into 4WD that power has to be split between the front and rear wheels. The transfer case makes this split happen. When you shift into 4WD, gears are engaged to power a chain drive that runs from a gear driving the rear driveshaft to power another set of gears behind the front driveshaft. Once engaged, this driveshaft delivers power to the front differential and out to the front wheels.

The ID tag location varies by manufacturer.

New Venture – Round tag on the back of the unit.

Borg Warner – Tin tag located on the case half bolts.

Magna – Sticker that can be found in a few different locations on unit.

Transfer cases use a combination of Drive, Housing, and Shift Types.

Drive types:

Gear driven transfer cases use a set of gears to send power to the front and rear axle. While gear driven transfer cases are more durable, they are also louder and less practical for smaller vehicles because of their weight.

Chain driven transfer cases use a chain in place of a gear set. Though most chain driven cases only drive one axle, there are case systems designed to drive both axles with a chain. Chains are lighter and quieter, but weaker than gear sets.

Housing types:

Married transfer case housings are bolted to the transmission, often between the output shaft and the main driveshaft. Some married transfer cases share their housing with the transmission.

Independent housings are installed separately from the transmission casing and are connected to the transmission output shaft with another driveshaft.

Shift types:

Manual Shift On-the-Fly (MSOF) transfer cases are controlled with a lever on the driver’s side floor of most vehicles. These transfer cases have two automatic sealed front axle hubs or two manual front axle hub selectors. High 4WD settings can be engaged at low speeds, but low 4WD settings must be engaged when the vehicle is stationary and the transmission is in neutral.

Electronic Shift On-the-Fly (ESOF) transfer cases have a dash-mounted selector, usually a switch or set of buttons. These cases have sealed automatic locking front axle hubs and a transfer case motor. High and low 4WD is engaged in the same ways as a MSOF transfer case.