Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Groove Rider on December 21, 2006, 03:35:59 PM

Title: Thick B4rsterd ?
Post by: Groove Rider on December 21, 2006, 03:35:59 PM
:?  :lol:  :lol:  :?:

Can someone explain please?
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Post by: Tank on December 21, 2006, 03:57:12 PM
Virtually all 4x4`s are actually rear wheel drive when in 2 wheel mode,as is the case with the XJ.The front axle is only driven when in 4wd
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Post by: daggie on December 21, 2006, 04:45:35 PM
231 is rear wheeldrive in 2H
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Post by: tim_aka_tim on December 21, 2006, 05:46:52 PM
:shock: Danger Will Robinson! - you need a crash course in how the drivetrain on your Jeep works - before you break the transfer case!

Here is my understanding without looking for facts and figures on various websites. Please feel free to add or subtract as many know better than I.

2H = Normal driving on roads with good grip - rear wheel drive.
4H Part Time = Centre diff lock - only use on surfaces which will allow the wheels to slip - snow, ice, mud etc. as when you turn corners, the front and rear props, which need to turn independantly under normal conditions, cannot.
4H Full time (not np231) - Use on the roads too for extra grip - allows front and rear props to turn independantly.
4L - Centre diff locked, but much lower geared (typically 2.5 - 3 times).

If in doubt, remember not to use a part time setting on the road, you'll likely mash your transfer case. You'll know you're in part time cus your steering will be b@stard heavy.
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Post by: Dave69 on December 21, 2006, 10:04:48 PM
more fun in the wet and snow with the xj rear wheel drive, but there again ft 4wd is the safer option for a wife and a heavy right foot
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Post by: Groove Rider on December 22, 2006, 12:04:25 PM
Cheers for replying all 8)

Does the 242 transfer box fit straight in no mods or other stuff needed?.....as a exchange for my knackered 231 box? :?  :)
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Post by: tim_aka_tim on December 22, 2006, 04:57:27 PM
Sounds an easy job, though you'll have to mess about wiring up dash lights. You need the TC, the TC crossmember, and the rear driveshaft. Dr. Mike would know - where is he?