New Venture Gear Transfer Case Chart

It looks like Magna International has bought New Venture Gear and as such has taken over their web assets. Unfortunately, that means that it is no longer possible to get to the transfer case table that all us off-roaders refer to on a semi-regular basis.

I’ve pulled a copy out of Google’s cache and reproduced it here before it goes into the ether for ever.

Here is the page, starting with the marketing verbiage at the top:

Blazing a New Trail in 4WD

New Venture Gear is the world’s largest supplier of transfer cases and the global leader in four-wheel-drive technology.

Two break-through technologies highlight the NVG product line: the all-new active transfer case and the progressive coupling transfer case. The full line of NVG transfer cases include part-time, full-time, and on-demand four-wheel-drive systems. All 4WD systems are available in electric and mechanical versions.

NVG’s quality-centered engineering team works in partnership with our OEM customers, integrating the latest four-wheel-drive technologies into vehicle systems. We invite you to tap into the future of four-wheel-drive and discover why customers around the world rely on NVG transfer cases.

The World Leader — The Widest Selection
Choose from four NVG 4WD Systems

Active On-Demand 4WD Operation:

Front and rear axles are constantly monitored electronically to detect any differences in speed due to wheel slippage. When a speed difference is detected, a computer signals the transfer case clutch pack to engage. Torque transfer is transparent to the driver. This system has dual range and multiple modes and is easily tuned to various vehicles.

Progressive On-Demand 4WD Operation:

The vehicle operates in 2WD. When traction is lost by one of the driving wheels, power is automatically transferred to the other axle. Torque transfer is transparent to the driver.

Full-Time 4WD Operation:

Power is distributed to front and rear axles during normal vehicle operation.

Part-Time 4WD Operation:

The vehicle operates normally in 2WD. The driver must shift into 4WD. “Shift-On-The-Move” allows shifting into 4WD without stopping.

The New Venture Gear Numbering System

The first number is the number of speeds:

“1″ = one speed (high range). Example – the NV 136.
“2″ = two speeds (high range and low range). Example – the NV 241.
The second number is the strength:
The NV 241 is designated “4″ in strength – tougher than the
NV 231, but not
as heavy duty as their largest T-cases, which go up to a “7″ (eg,
NV 273,
for vehicles with a GVW of 17,500 lb).
The third number designates the type of T-case:
“1″ = part-time 4WD
“2″ = full-time 4WD with an open center differential plus lockable
part-time
option – like the Selec-Trac NV 242 of the Jeep Cherokee and Dodge Durango,
or the Hummer’s NV 242HD AMG.
“3″ = electrically shifted.
“4″ = not currently used.
“5″ = Torsen-type differential.
“6″ = computer controlled multi-plate wet clutch, like GM’s
AutoTrac NV 246.
“7″ = GeroDisc – like the Grand Cherokee’s Quadra-Trac
II NV 247.
“8″ = not currently used.
“9″ = viscous coupling.

Transfer Case Specifications Chart

* Based on manual transmission
and gasoline engine (2.2 load factor).
** Based on manual transmission and diesel engine (2.5 load factor).

This entry was posted on March 10, 2005 at 9:46 am and is filed under Tech. You can follow any responses to this entry through the RSS 2.0 feed.