How does Command Trac work in a jeep?
In the 4 part-time position, this differential is locked and the system operates the same as Command-Trac™. In the 4 full-time position, the centre differential is open and allows the front and rear axles to rotate at different speeds when turning corners on high-traction surfaces or while driving over any kind of road surface.
How does the 4 wheel drive system work in a Jeep Grand Cherokee?
In this way, the transfer case works almost identically to the NV247 transfer case used in the Quadra-Trac II system in 1999 to 2004 WJ Jeep Grand Cherokees. In 4WD Low mode, the clutch pack is locked and power flows through a 2.72:1 planetary gear set for higher torque at lower speeds.
When did the Quadra Trac come out on the Jeep CJ7?
It was a chain-drive system introduced in 1973 on the full-sized Jeep line behind the AMC version of the Turbo-Hydramatic 400 automatic transmission. CJ7s also received the Quadra-Trac starting in 1976.
Is there a part time transfer case for the Jeep Grand Cherokee?
The Jeep Grand Cherokee/Commander line no longer offers a part-time transfer case option. The reason behind this was its poor sales along with an improved Selec-Trac.
When did Jeep start using the Command Trac transfer case?
The Command-Trac HD transfer case was used in 6-speed Liberty KJ’s from 2005 to 2007. Although sometimes referred to as the “NV (NP)231HD,” the transfer cases are actually the 241 series used in full-sized trucks from other makers (241D or 241C). The Jeep version is labelled “NV (NP)241J.”
The Jeep Grand Cherokee/Commander line no longer offers a part-time transfer case option. The reason behind this was its poor sales along with an improved Selec-Trac.
It was a chain-drive system introduced in 1973 on the full-sized Jeep line behind the AMC version of the Turbo-Hydramatic 400 automatic transmission. CJ7s also received the Quadra-Trac starting in 1976.
What kind of transmission does a Jeep Grand Cherokee have?
There are reports of a modified version known as NP-231J HD which was supposedly (SP) a “heavy duty” version for the Jeep Grand Cherokee with V8 engines. The NP/NV-231 case is a chain-driven unit that takes 21- or 23-spline input shafts. The 23-spline was for the AX-15 transmission, and the 21-spline was used for the AX-5 and BA 10/5 transmissions.