MOTORCYCLE

> platypus wrote:
>
>> Krusty wrote:
>>> platypus wrote:
>>>
>>>> Ace wrote:
>>>>>
>>>>> They work between left and right side, but on vehicles with
>>>>> selectable 4wd like darsys jeep, there is no diff between
>>>>> front and rear.
>>>>
>>>> Are they allow to make them that crap? He wants a proper 4x4, he
>>>> does.
>>>
>>> Hes got one - Ace is wrong. You can get Cherokees with two types of
>>> transfer case - SelecTrac which has a centre diff allowing full-time
>>> 4WD, & CommandTrac which which hasnt got a diff & just locks the
>>> driveshafts together, hence can only be used in 4WD on slippery
>>> surfaces.
>>
>> IIRC my Rangie had a lockable centre diff. Id
>> venture that the the ideal would be three viscous diffs for
>> fit-and-forget simplicity.
>
> Not for serious off-roading. Viscous diffs require a certain amount of
> spin before theyll engage, which isnt necessarily A Good Thing.
> Viscous diffs that can also be manually locked otoh would be ideal.