| The Select Trac option on the Jeep
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| | at any speed simply by moving the lever.
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| Cherokee gets you the New Process NP 242
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| | The switch to low range must be made at
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| transfer case. This transfer case gives
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| | very low speed - the Jeep manual says 3
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| the following operating modes: 2wd, 4wd
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| | mph.One common operating problem with the
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| with the center differential open, 4wd
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| | 242 transfer case is that it will stick
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| with the center differential locked,
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| | in 4wd even if the lever is moved to 2wd.
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| neutral, and 4wd low range (center
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| | Internally, moving the lever loads a
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| differential locked)The addition of a
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| | spring which then applies force to move
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| center differential is the main
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| | the selector fork. If the gears are
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| difference between the NP 242 and the NP
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| | loaded with torque, the spring will not
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| 231 or Command Trac transfer case.
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| | have enough energy to move the sleeve off
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| Without a differential, the 231 transfer
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| | the gears. Once torque is removed from
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| case offers only part time four wheel
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| | the gears, the spring will then move the
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| drive mode.The NP 242 transfer case Full
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| | fork and slide the sleeve of the
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| time mode opens the center differential
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| | gears.Momentarily lifting your foot off
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| allowing the front and rear axles to
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| | the gas will often unload the gears
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| rotate at different speeds while still
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| | enough to allow the spring pressure to
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| being linked by the transfer case. The
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| | move the fork. On some high mileage
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| end with the least traction will get the
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| | units, a wear groove will form on the
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| most torque. While this mode may have
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| | sleeve or gear causing it to stick longer
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| some disadvantages off road where a wheel
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| | and may require a couple of changes from
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| may loose contact with the ground, it has
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| | loaded to unloaded to get the sleeve to
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| the advantage of being usable on all
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| | release form the gear.The Jeep NP 242 is
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| paved surfaces. Part Time mode - with
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| | lubricated with Automatic Transmission
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| the center differential locks can only be
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| | fluid. The level is checked by removing
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| used on loose or slick surfaces with out
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| | the upper of the two large plugs on the
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| possible damage to the transfer case.I
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| | back of the case. The fluid should be
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| use full time mode on wet streets, hard
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| | level with the upper plug.The NP 242 has
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| packed gravel or dirt, some snow and ice
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| | a slip yoke on the tail shaft. If the
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| situations and on dry pavement when full
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| | drive shaft is damaged or removed, fluid
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| acceleration without wheel spin is
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| | will be lost out the tail shaft. Also
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| desirable. I use part time mode on loose
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| | this seal is important to maintain in
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| gravel, dirt, grass and any off road
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| | good condition to prevent fluid loss.The
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| situation. I use Part time mode when
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| | NP 242 is a very versatile transfer case
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| RallyCross racing as well.I use low range
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| | and is my choice for three of my five
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| for more control in off road situations
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| | Jeeps. The full time selection gets
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| or on rough gravel roads when traveling
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| | frequent use in all of them.Mike
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| downhill to avoid excessive use of the
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| | Strawbridge is the owner of Straw
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| brakes. I also often use low range when
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| | Solutions Performance Consulting where he
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| positioning my trailer or other towed
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| | teaches others how to get the most
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| equipment when precision placement is
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| | performance out of their business
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| needed.The NP 242 transfer case can be
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| | process.
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| switched between 2wd and either 4wd mode
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