those with 4 full time

hyedipin · **Joined:** Thu May 11, 2006 10:20 am **Posts:** 1667

sleeve84028 wrote:

with or without that slack, the full time system is really handy when you need to get around town and the weather is bad.

Sure, I used 4x4 FT All the Time until I started hitting slow traffic and the bang started bothering me, so now I only use it when I don't have to do a lot of slow-traffic, where the bang seems to show its ugly face the most. Otherwise, it is the best thing ever. I am lucky that I didn't get a sport and get stuck with 4HI. I actually thought 4HI acted funny since it just cannot seem to settle on the road when driving on bumpy or mixed road conditions like partially snow, partially wet.

Guest · **Posted:** Mon Oct 01, 2007 1:37 pm

hyedipin wrote:

sleeve84028 wrote:

I've never had any type of torque steer problems in Full time. I don't think I've ever had any problems with Full Time now that I think about it some more. I mean you're only talking about 200+ pound feet of torque that is split between the front and rear section of the Jeep to some varying degree.

The steering used to feel heavy for me when it was in Full Time. Now, I don't even notice the difference between 2wd and FT.

Never had a problem with the transmission shifting. It's always been clunky in every mode... Not worth complaining about honestly. As long as it continues to get me to and from work. Or to and from the boat launch I could care less about the unrefindness of it all.

Looks like you got one of the better batch.. If you tell me you've got no backlash/drivetrain slack, then I am not gonna believe ya.

I also have no issues, Torque steer is very mild, but definately not non-existant. Anyone who has had a front wheel drive car with even a modest amount of torque, has felt way worse torque steer. The heavier steering is a byproduct of the torque effect of the wheels being turned under power

snowsport · **Joined:** Tue Oct 18, 2005 11:52 pm **Posts:** 1211

hyedipin wrote:

I am lucky that I didn't get a sport and get stuck with 4HI.

Selec-trac is optional for sport models too.

Maybe my KJ is unusual or something, but there are no clunking or banging or thumping sounds when it is in full time 4 wheel drive, even when turning.

I've actually never been in another KJ, except the one I test drove, and it had Command-Trac, so I don't have anything to compare it with.

hyedipin · **Joined:** Thu May 11, 2006 10:20 am **Posts:** 1667

snowsport wrote:

hyedipin wrote:

I am lucky that I didn't get a sport and get stuck with 4HI.

Selec-trac is optional for sport models too.

Maybe my KJ is unusual or something, but there are no clunking or banging or thumping sounds when it is in full time 4 wheel drive, even when turning.

I've actually never been in another KJ, except the one I test drove, and it had Command-Trac, so I don't have anything to compare it with.

command trac doesn't bang. If you have selec trac, just put it in 4x4 Full time and drive for about a mile, then slow down. Then hit the gas to 10-15mph watch rpm go high, let go of the gas without it going to next gear, when it slows down to 8-10mph hit the gas again, you should hear the slack/lash we are talking about
UNLESS you got manual transmission.

snowsport · **Joined:** Tue Oct 18, 2005 11:52 pm **Posts:** 1211

Yep, my sport has Selec-trac with the automatic trans. I can't say that I have driven it exactly the way you described, but probably close to it, in traffic for example. If it is thumping, then it's thumping too lightly for me to notice.

I agree though full time 4 wheel is a great improvement for winter conditions.

Do you know if selec-trac is a good match with an ARB air locker?

_UnLiMiTeD_ · **Posted:** Mon Oct 01, 2007 4:02 pm

ive never had any thumping or banging, just feels different then driving in 2wd

FastTRX · **Posted:** Mon Oct 01, 2007 4:55 pm

_UnLiMiTeD_ wrote:

ive never had any thumping or banging, just feels different then driving in 2wd

It should...

Just playin'...

I have command-trac....I looked for a selec-trac and couldn't find one I liked so I went with command. It works great for my purposes, when it snows the roads are usually so bad that I put it in part time and it does just fine, no noises except the 4WD system working. I guess what I'm saying is, I guess I don't find a need for full time where I live...when it rains I just deal with it.

scoobysnax · **Posted:** Mon Oct 01, 2007 5:14 pm

other than the thumping being a pain to deal with, is it bad for the driveline? I always take it out of full-time when I'm in traffic but once it snows, I'm going to want to leave it alone. Thoughts?

Sir Sam · **Posted:** Mon Oct 01, 2007 5:33 pm

FastTRX wrote:

_UnLiMiTeD_ wrote:

ive never had any thumping or banging, just feels different then driving in 2wd

It should...

Just playin'...

I have command-trac....I looked for a selec-trac and couldn't find one I liked so I went with command. It works great for my purposes, when it snows the roads are usually so bad that I put it in part time and it does just fine, no noises except the 4WD system working. I guess what I'm saying is, I guess I don't find a need for full time where I live...when it rains I just deal with it.

ya, as much as I like the NP242 and insist that my vehicle have it I usually am in 2hi or 4lo, when it get rough enough that I decide I need 4wd in the snow the NP231 does just fine.

I guess what I really like about the NP242 is that I can just put it in 4hi when its just kinda nasty around in places, and have that security that my booty end wont slide around randomly, its good for patchs ice/snow mixed in with dry pavement.

to be fair I could live with a jeep that only had 2hi and 4lo.

bugnout · **Posted:** Mon Oct 01, 2007 6:20 pm

snowsport wrote:

Do you know if selec-trac is a good match with an ARB air locker?

I think its the only choice for the front diff if you have Select Trac and you want to be able to use Full Time 4WD. I believe some Liberty owners with Command Trac have used LSD's but anything but a fully selectable locker would make the FT 4WD dangerous.

ARB is the only maker of a fully selectable locker for the D30. Eaton has yet to release thier eLocker and Detroit's ECTD is a LSD when not locked.

KY Liberty · **Joined:** Sat Jul 09, 2005 1:46 pm **Posts:** 1195

bugnout wrote:

snowsport wrote:

Do you know if selec-trac is a good match with an ARB air locker?

I think its the only choice for the front diff if you have Select Trac and you want to be able to use Full Time 4WD. I believe some Liberty owners with Command Trac have used LSD's but anything but a fully selectable locker would make the FT 4WD dangerous.

ARB is the only maker of a fully selectable locker for the D30. Eaton has yet to release thier eLocker and Detroit's ECTD is a LSD when not locked.

X2^

You don't want an LSD in the front with the FT 4WD. In my opinion, an ARB air locker up front and a TruTrac in the rear would be very streetable, and would do very well when challenged too. I think that's the combo I'm going to upgrade to from the factory LSD. Selectable Open/Locked for the front, and a good LSD for the rear with on board air sounds pretty good to me.

Of course, that's unless Detroit comes out with an ECTD for the 8.25 before next summer. I think that combo would be really good. Selectable Open/Locked for the front, and selectable LSD/Locked for the rear.

As for the thump, I don't really have that. I can get the transmission to shift way too hard if I do something like rev it real quick and let off.

_UnLiMiTeD_ · **Posted:** Mon Oct 01, 2007 10:41 pm

ahh so many thing i can upgrade...just need money lol

spencevans · **Posted:** Mon Oct 01, 2007 11:13 pm

I don't know what the answer is and innitially I thought that the fulltime system was broken, but the dealer checked it out and said it was normal. So I concluded that it just was unrefined or the dealer was incompetent. That was part of the reason I liked the Landcruiser was because they were so buttery smooth in fulltime 4WD. No pulling, torque steer, driveline clunks, or heavy steering. Now I am going to have to drive my sisters Commander and see how it does in Fulltime. :?:

Guest · **Posted:** Mon Oct 01, 2007 11:44 pm

hyedipin wrote:

sleeve84028 wrote:

with or without that slack, the full time system is really handy when you need to get around town and the weather is bad.

Sure, I used 4x4 FT All the Time until I started hitting slow traffic and the bang started bothering me, so now I only use it when I don't have to do a lot of slow-traffic, where the bang seems to show its ugly face the most. Otherwise, it is the best thing ever. I am lucky that I didn't get a sport and get stuck with 4HI. I actually thought 4HI acted funny since it just cannot seem to settle on the road when driving on bumpy or mixed road conditions like partially snow, partially wet.

BANG?!? Holy cow, there's not that much slack!

hyedipin · **Joined:** Thu May 11, 2006 10:20 am **Posts:** 1667

KJpilot wrote:

hyedipin wrote:

sleeve84028 wrote:

with or without that slack, the full time system is really handy when you need to get around town and the weather is bad.

Sure, I used 4x4 FT All the Time until I started hitting slow traffic and the bang started bothering me, so now I only use it when I don't have to do a lot of slow-traffic, where the bang seems to show its ugly face the most. Otherwise, it is the best thing ever. I am lucky that I didn't get a sport and get stuck with 4HI. I actually thought 4HI acted funny since it just cannot seem to settle on the road when driving on bumpy or mixed road conditions like partially snow, partially wet.

BANG?!? Holy cow, there's not that much slack!

Oh yeah, there is. I gotta record it for you guys one day. It is LOUD!

sleeve84028 · **Posted:** Tue Oct 02, 2007 8:35 am

Mine will do that "BANG!" like a cannon blast.

JeepBeat · **Posted:** Tue Oct 02, 2007 9:59 am

This is a bit off topic, but I have a 2002 Liberty and this will be my first winter with it, since buying it from a buddy of mine. In snow and stormy weather, here in Atlantic Canada, what mode should I be in when I want 4WD?? Should I shift into full time or part time for travelling in town and highway, on snowy, and/or ice covered roads? The part and full time confuses me, I guess only because I haven't used it yet. I had two Silverados with 4WD and you just shift into plain old 4WD when you want it.

DarbyWalters · **Posted:** Tue Oct 02, 2007 10:08 am

They do have the ARB for the front and you can do a Detroit TruTrac LSD...

snowsport · **Joined:** Tue Oct 18, 2005 11:52 pm **Posts:** 1211

JeepBeat wrote:

This is a bit off topic, but I have a 2002 Liberty and this will be my first winter with it, since buying it from a buddy of mine. In snow and stormy weather, here in Atlantic Canada, what mode should I be in when I want 4WD?? Should I shift into full time or part time for travelling in town and highway, on snowy, and/or ice covered roads? The part and full time confuses me, I guess only because I haven't used it yet. I had two Silverados with 4WD and you just shift into plain old 4WD when you want it.

When winter hits here I put the lever into full time and leave it there until spring. Well, I take it out if I'm doing a highway drive and the road is obviously dry, but otherwise full time for me means full time. You just never know when the next patch of ice will jump out at you...

bugnout · **Posted:** Tue Oct 02, 2007 10:19 am

JeepBeat wrote:

what mode should I be in when I want 4WD?? Should I shift into full time or part time for travelling in town and highway, on snowy, and/or ice covered roads? The part and full time confuses me, I guess only because I haven't used it yet.

Think of Full Time 4WD as All Wheel Drive. differential drive not only to each wheel (assuming you dont have lockers) but also differential to the front and back axles. This mode can be used even on dry pavement, I turn it on if there is even a hint of moisture on the pavement. I leave it in FT 4WD until I absolutely have to shift to PT 4WD.

Part Time 4WD has constant drive to both the front and back axles but differential drive to each wheel. and should not be used where traction is good as you can damage the transfer case especially when cornering. Best used on snow and ice.

those with 4 full time

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