NP246 Transfer Case for GM 2003-2007 P/U | RTC246G-3 | RANDYS Worldwide

Zumbrota Remanufactured NP246 Transfer Case for GM 2003-2007 GM 1500 Series

Product Details

When you buy a Zumbrota transfer case, you gain the confidence, satisfaction, and peace of mind that comes with our standard 2 year, unlimited mileage warranty. Zumbrota transfer cases are rebuilt to unparalleled standards. All units are restored to like-new condition by craftsmen with over 150 years of combined industry experience. Cases and internal components are inspected and tested for signs of wear like cracks, stripped threads, shaft warp, gear wear, and chain stretch. Each unit is fully rebuilt with replacement of all bearings, seals, and viscous couplers. Zumbrota uses an exclusive hydro-blast rinse and sandblasting procedure on internal and external parts, followed by a proprietary shot-enticed deep cleaning. 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.

For 2003-2007 GM 1500 Series pickups and SUVs
27 spline input
Shift motor is not included
Spin tested for shiftability and noise
High-density plastic shipping totes eliminate in-transit damage

Technical Notes

NP246; 27 Spline Input, Autotrack Option Code NP8, Shift motor is not included, Hollander Number: 412-536, Tag Numbers: 12577834, 12578116, 12580184, 12580859, 12584880, 12585239, 12586466, 24200015, 24228420, 24233725, 24237189, 24237286, 24238532, 24239524, 24240015, Other Numbers: UMT137-4

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	03,07,12577834,12578116,12580184,12580859,12584880,12585239,12586466,24200015,24228420,24233725,24237189,24237286,24238532,24239524,24240015,246,29-T01,412-00536,412-536,4L70E,CASE,GM,NP,NP246,NP246-CC,RTC,RTC246G-3,T,TC-06,TC246G-3,TRANS,TRANSFERCASES-R,UMT137-4,W/4L60
Technical Notes	NP246; 27 Spline Input, Autotrack Option Code NP8, Shift motor is not included, Hollander Number: 412-536, Tag Numbers: 12577834, 12578116, 12580184, 12580859, 12584880, 12585239, 12586466, 24200015, 24228420, 24233725, 24237189, 24237286, 24238532, 24239524, 24240015, Other Numbers: UMT137-4
UPC	883584762102
ProxyNumber	76210
Width	24.00 in
Length	34.00 in
Depth	18.00 in
Weight	90.0000 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.