you got the command-trac. "part-time" 4-hi or 4-low. In my case it's "most the time" in 4-hi or 4-low.
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| Author: | japracer4 [ Thu Feb 09, 2006 10:54 pm ] |
| Post subject: | command-trac or select-trac |
I think I have the command-trac but an unsure. I have the np231 transfer case just like my 90 xj had. My lever on the inside is also the same. 2hi, 4hi and 4lo. Does that mean i have only full time 4wd when in low. just curious i saw on here someone wanted to trade their 242 for a 231 so i was just hoping if i got the better system. |
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| Author: | krazz1e [ Fri Feb 10, 2006 12:30 am ] |
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you got the command-trac. "part-time" 4-hi or 4-low. In my case it's "most the time" in 4-hi or 4-low.
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| Author: | Waldn [ Fri Feb 10, 2006 12:34 am ] |
| Post subject: | |
You have the command track pat time. here is the explanation of the systems from Jeep web site: COMMAND-TRAC™ The Command-Trac™ transfer case is the heart of the Command-Trac™ part-time 4WD system. When engaged, both front and rear driveshafts are locked by a chain and gearset, which always turn at the same speed, forming a single drive unit. This is a rigid connection that does not allow for any differential action between front and rear driveshafts. Normal front-to-rear differences in the turning radii of the wheels (when cornering) are compensated for only through wheel slippage on driving surfaces. This transfer case allows for 2WD, 4WD High-Range and Low-Range as well as Neutral. 2 HIGH: • Front axle spins freely • Power sent to rear wheel 4 HIGH: • Shift-on-the-Fly at speeds up to 88 km/h (55 mph) • Front and rear drive shafts lock together and rotate at the same speed • Only use on slippery or loose surfaces NEUTRAL: • Use for towing your Jeep ® vehicle behind another vehicle • Does not require uncoupling driveshafts 4 LO: • Use for severe off-road situations • Increases available engine torque by 2.72:1 • Slow speed to 3-5 km/h (2-3 mph), put transmission in Neutral • Engage 4 LO and return transmission to desired gear SELEC-TRAC™ The Selec-Trac™ transfer case is the heart of the Selec-Trac™ 4WD system. The difference is its Open-Centre Differential. 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. The Selec-Trac™ transfer case delivers the added convenience of not having to shift back-and-forth between 2WD and 4WD. 2 WHEEL DRIVE: • Front axle spins freely • Power sent to rear wheels 4 PART TIME: • High-range, for temporary conditions that require extra traction • Locks centre differential; all four wheels rotate in unison • Not to be used on dry pavement 4 FULL TIME: • High-range, for year-round traction, wet or dry • Centre differential allows the front and rear axle to rotate at different speeds NEUTRAL: • Use for towing your Jeep® vehicle behind another vehicle • Does not require uncoupling driveshafts 4LO: • Use for severe off-road situations • Increases available engine torque by 2.72:1 • Slow speed to 3-5 km/h (2-3 mph), put transmission in Neutral • Engage 4 LO and return transmission to desired gear |
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| Author: | Taz [ Fri Feb 10, 2006 7:26 am ] |
| Post subject: | |
Keep in mind that Jeep defines full time and part time differently than traditional thinking. Jeeps full time means dirve it around in this mode all the time. Their part time means drive it in this mode part of the time when extra traction is needed. Traditionally full time 4wd meant that you had 4wd all the time with no choice of 2wd, these were the old pickups where the front wheels would hop when turning slow and tight on dry pavement. |
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| Author: | ManicMechanicJoe [ Fri Feb 10, 2006 7:29 am ] |
| Post subject: | |
i was the one that wanted to trade my 242 for a 231 and my offer still stands... The 242 is a more expensive case but the 231 has more aftermarket parts available... |
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| Author: | japracer4 [ Fri Feb 10, 2006 11:42 pm ] |
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thanks fo rthe info all |
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| Author: | KJGREECE [ Sat Feb 11, 2006 3:56 am ] |
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I'm confused. I have a 2.4L 2004 mod, and i think it has the COMMAND TRACK transfer case.The positions are 2WD- 4PART-TIME - NEUTRAL - 4 LO. Is that right? |
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| Author: | ManicMechanicJoe [ Sat Feb 11, 2006 5:15 am ] |
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you are correct sir! You have the NV231 case |
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