Thanks for all the info guys. I really appreciate it. I guess I'll just
have to live without full time for a while longer. :( I just thought it
would have been great for those winter days when you've got a combination of
icy patches, then bare patches and then snowy patches. I seem to be a bit
of a worry wart leaving part-time engaged in a situation like that,
especially if turns are involved. Another sound reason to lease my vehicle.
Jason's is now worrying that I'm gonna trade this on in for yet another new
Dak :) Thanks again!
Norah
current: '98 Dakota Sport black 4x4 CC V8/5.2L/Auto
current: '95 Dakota Sport white 4x4 Reg Cab V6/3.9L/5spd
RIP: '95 Dakota Sport black 4x2 CC V6/3.9L/Auto
previous: '93 Dakota blue 4x2 CC V6/3.9L/Auto
> -----Original Message-----
> From: owner-dakota-truck@buffnet4.buffnet.net
> [mailto:owner-dakota-truck@buffnet4.buffnet.net]On Behalf Of
> fawcett@uism.bu.edu
> Sent: Friday, July 09, 1999 8:46 PM
> To: dakota-truck@buffnet.net
> Subject: Re[2]: DML: 4x4 242HD conversion
>
>
> <<full time four wheel drive has about 400 different meanings and every
> manufacturer uses it differently. some manufacturers uses it differently
> depending on which of their products they are refering two.>>
>
> Yep, no doubt about it... Manufacturer's feel the need to name
> their system
> something different. Can be very confusing.
>
> <<a lot of people including myself think of it as power going to
> the front
> and rear drive shafts all the time with torque going to the axle
> with more
> traction. like the subaru line about the wheel that grips.>>
>
> I would consider power going to both axles all the time as AWD.
> If the system
> provides power to the wheels that grip, then they've upped the
> anti with a more
> sophisticated system like LSD's, computer controlled braking, or
> something else.
>
> <<there are 4x on demand, which is most trucks have. there is
> slippage then
> it engages like a part time unit with a 50/50 split.>>
>
> 50/50 front and rear axle, but what slippage are you talking about?
>
> <<then there are the all-whell drive types. power is sent along
> both shafts
> all the time. the case is a viscous coupling. and power is sent to the
> shaft with more power. this unit type is found in subaru's and
> non-off road
> 4wd drive units (syclone). the only problem is most of these can not be
> locked like part time 4x.
> now there are all types of transfer cases some like the
> above examples
> some unlike, some are a combination.
> the 242 is somewhat different from the above it is more
> like a part time
> unit that is set up to allow slippage when in the full time mode.>>
>
> I'm still confused on your use of the word "slippage". I thought
> you were
> referring to a LSD but that doesn't add up. A "viscous coupling" is just
> another word for a clutch pack A.K.A. LSD, no? My understanding
> is that the
> 242 has something similar to an open differential in the T-Case.
> Therefore,
> there would be no slippage, power would simply go the path of least
> resistance to either axle.
>
> <<my experience is this. the 242 is a great transfer case 2wd
> high, 4 high,
> 4 low, and the full time mode works well, but never anywhere as
> well as when
> it is part time. It is most noticeable when you are giving lots
> of power in
> very slick situations(ice, deep snow, mud). basicaly trying to
> spin yourself
> out. but, in rain, light snow, dirt at safe speeds it works great.>>
>
> Yep! That's what it was designed for... I would never recommend
> full-time on the Kota for any serious off-road trails or if your stuck in
> stuff --it doesn't work that way and was never designed to.
>
> <<note
> -when in part time on slick surfaces if you lock one wheel all of the
> others that are connected
> lock up as well (through drive train) I learned the hard way that abs
> is very good.
> -the 231 part time unit is rugged, your not going break it very easily.
> short straight drives on hard pavement and extended drives on packed
> earth/gravel will not damage it.>>
>
> Driveline lock-up sucks! I had it happen once in my old Jeep --not fun.
>
> Straight and level with full lockers front and rear will never damage any
> 4wdr system... I've never met a road that stayed straight for long,
> though. The problem is, and will always be, turning with a part-time
> system. If anyone doubts me, slip your truck into part-time high and try
> to make a VERY slow speed turn on some dry pavement (try this only once
> and don't complete the turn!)... As soon as you start turning you'll
> think your driving a pogo stick. That's your driveline binding up --very
> bad!
>
> Tom
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:14:57 EDT