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mrgl02
Dodge Dakota
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11/16/2004
18:51:47

Subject: Full time/Part time transfer cases...?
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Likely a dumb question, but here it goes...

Can someone explain the differences in the "full time" and "part time" transfer cases?

I see that the "full time" one was optional on the '01 QC 4x4.



FloriDak
Dodge Dakota
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11/17/2004
14:50:14

RE: Full time/Part time transfer cases...?
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I don't know all the particulars, but I'll give it a shot. A "part-time" transfer case mechanically locks the front wheels and the back together, so you can't drive on dry pavement. If you do the transmission binds up, especially when you turn.

A "full-time" transfer case has fluid that connects the front and back wheels so each wheel can spin freely from each other on dry pavement without breaking anything. I think some manufacturers call that a "viscious coupler." Most all Subaru's these days have the "full-time" setup and are in 4wd all the time.

I probly missed a couple things, but thats the difference as far as I know...

1997 Dakota extended Cab
318v8 4x4
Dual Flowmaster Exhaust
K&N Filter



figols
Dodge Dakota
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11/17/2004
16:13:32

RE: Full time/Part time transfer cases...?
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That was pretty good Floridak, but in addition.....

A part time transfer case allows you to engage 4wd when you need/want it. Usually you have 2wd, 4 hi, 4 low and neutral. A full time 4wd transfer case means you're in 4wd mode all of the time. You can not disengage 4wd. They both have advantages and disadvantages.

I prefer a part time system because of the slightly better gas mileage(being able to go 2wd), less moving & electrical parts, AND the ability to put the transfer case in neutral. That helps if you ever need to be towed or pushed. For plowing or regular towing a part time transfer case is usually recommended.




tractorfix
Dodge Dakota
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11/17/2004
17:15:15

RE: Full time/Part time transfer cases...?
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The only good full time boxes were the old NP203's. All the big 3 used them thru the 70's



Lurkin
Dodge Dakota
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11/18/2004
08:27:36

RE: Full time/Part time transfer cases...?
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In the AWD xfer case, the xfer case will act as a differential between the front and rear diffs, giving power to whichever one asks for it, it is not locked 50-50. It also has 4wd mode which locks the xfer case at 50-50, and 4Lo which uses lower gears in the xfer case.

By the way the Dodge AWD xfer case does have the ability to go into N to allow towing the truck.

I have an 02 QC AWD and I like the traction improvement that AWD gives (just on wet pavement the improvement is quite noticable over 2wd trucks). But it does cost more in gas every week....



Rich Wilson
Dodge Dakota
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11/19/2004
23:48:00

RE: Full time/Part time transfer cases...?
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You can disengage the ft4wd. My wife has a 98 Durango w/ 2wd; ft4wd; pt4wd; n; & pt4wd low. My 99 Dakota has 2wd; pt4wd; n; & pt4wd low. The chassis and axles are the same, only the difference is the xfer case. Beware! Dodge may have changed this setup by now.



jasonsdakota
Dodge Dakota
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11/20/2004
00:12:51

RE: Full time/Part time transfer cases...?
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rich, i like that setup on your wifes durango. chevy does that on their trucks but no dakota has that setup unfortunately. if you have full time 4x4, you cannot switch to 2wd. it was an option only on v8's. great in michigan, or in the rain. good for 1mpg loss over 4x4, isn't that crazy, what's worse than 4x4? awd

2000 dakota 4.7 4x4 awd
ho cams
cai
soon:
superchips
68 or true 68 to replace my 65
maybe an 03/04 manifold (need advice there)



samtheman
Dodge Dakota
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11/20/2004
18:14:59

RE: Full time/Part time transfer cases...?
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Unless a vehicle has locking hubs, (I don't believe any new make vehicles have them) the front axle (or shafts) and front drive shaft are always turning and wasting energy. I've read many posts that claim because of this, there is no difference in mpg or the full times might even have the edge! Can't say whether it is correct or not.



Dan M
Dodge Dakota
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11/20/2004
21:02:29

RE: Full time/Part time transfer cases...?
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Thought I would toss this in, how 4wd works.

The howstuffworks.com is a great reference site for more than just autos.

http://auto.howstuffworks.com/four-wheel-drive.htm

Dan M



Kristian
Dodge Dakota
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2/22/2023
14:18:18

RE: Full time/Part time transfer cases...?
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Does anyone have any information on 2000
dodge dakotas with awd? My truck only has
the shift pattern 4hi-n-4wd-4lo. I can not
get alot of info on the truck. From my
understanding at several dealers I've
talked to they don't know anything about
the truck and say these never existed till
2002? So how does my build date of 03/99
truck thats a 2000 have it.



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