Best method to shift Select-Trac into 4-Full while moving?

[Newzpix]

I've read the Jeep manual and can not find anything addressing the proper method to shift from 2-wheel drive into 4-full time with the Select Trac. Must I shift into 4-hi and then into 4-full time?

 

[KJ2005]

from what I know selct a trac is the same as comand trac except offers 4wheel full time so the shifting should be the same in the manual, if not here's a link that explains the 4wd systems and has a flash based tutorial

http://www.jeep.com/4x4/index.html

 

[Marlon_JB2]

While moving at any speed under 55MPH, pull the shifter in to 4 Full Time.

That's not difficult.

 

[Newzpix]

While moving at any speed under 55MPH, pull the shifter in to 4 Full Time.

That's not difficult.

So I pull the lever past 4-hi (part time) and directly to 4-Full?

 

[kjpilot]

yup, straight back.

 

[MoladoGuy]

Yea you will have no issue pulling it directly into 4-Full. It won't bust anything, might need a little elbow grease (well....you really shouldn't need elbow grease). After you've done this take it on the dirt and put it into 4-Lo. You'll know how easy it is to change into 4-Full after.

 

[Atrus]

Since I got mine, I wondered why they'd part 4-PT in front of 4-FT. I know there's probably an engineering reason for it, but it just doesn't really make a lot of sense. Oh well. I have it in 4FT in the downpour on 696 driving in to work today., Figured I paid for it, might as well use it.

 

[MoladoGuy]

Since I got mine, I wondered why they'd part 4-PT in front of 4-FT. I know there's probably an engineering reason for it, but it just doesn't really make a lot of sense. Oh well. I have it in 4FT in the downpour on 696 driving in to work today., Figured I paid for it, might as well use it.

To bad we can't say that often for 4-Lo (paid for it, might as well use it). Thanks Metro Detroit

 

[Newzpix]

Thanks for the info. I drove a '90 Wrangler for 12 years and am not used to this new fangled technology.

 

[Atrus]

To bad we can't say that often for 4-Lo (paid for it, might as well use it). Thanks Metro Detroit

For real. I keep eyeballing the guy on the corner's lawn when I drive home every day so the KJ will see some time off pavement

Actually, I think Saturday I'm going to my uncle's in Almont, and he lives on a dirt road!!!! Thrills!

My buddy goes a few hours (like 2?) north on a day trip in November with some compadres from Chrysler. He's got a YJ. I may accompany them this year. I guess there's some state land by his wife's grandparent's place in Clare too, so we plan to hopfully hit that up next month.

I did put it in 4 low for about 20' down my street just to make sure it worked and I could move the shifter.

 

[o8k]

ive noticed that if u r in 4part time and binded (meaning your in a thight turn and you can hear the wheel slip ) preferably if u r on dirt, so u dont hurt your tx case, then u go to 4full time, there is more resistance cuz basicly i think doing so just opens the locker in your transfer case. if its binded opening the locker is harder. i run 4 full time more while off road, as any and all lockers wear out parts, dont run locked unless u have to. i only evr need the tx case locked when on a breakover where im heavy articulated. or up a heavy articulated hill, better to pick a line where little or no articulation occurs, if possible,,,, =D

oh and i always pause in 4PT B4 going to 4FT, EVEN on pavement, its ok to be in 4PT on pavement if u dont bind it by making any heavy turns, preferable going streight only to b safe.

 

[Emoto]

I think it is a good idea to let up off the gas when shifting the transfer case.

 

[Marlon_JB2]

I think it is a good idea to let up off the gas when shifting the transfer case.

That would defeat the purpose of the Shift-On-The-Fly capability that was engineered into the 4 wheel drive system.... plus you paid for that capability. Use it. It won't harm anything.

 

[Tline155]

That would defeat the purpose of the Shift-On-The-Fly capability that was engineered into the 4 wheel drive system.... plus you paid for that capability. Use it. It won't harm anything.

The manual actually states to release the accelerator while making the change from 2wd-4PT and 4PT-4FT and back again.

I know I dont have any experiance doing it as I just got the KJ 2 days ago, but I did read that last night.

 

[Atrus]

I fully believe it's a good idea to let off the gas.

IMO, shift-on-the-fly means the ability to shift without coming to a stop.

May or may not be required, but letting off the pedal can't hurt, right?

 

[Dave]

I fully believe it's a good idea to let off the gas.

IMO, shift-on-the-fly means the ability to shift without coming to a stop.

May or may not be required, but letting off the pedal can't hurt, right?

I think backing off the gas is good and I think it might have saved my bacon once.

I was on the interstate and really moving. It started to really pour hard. I just backed off the gas and pulled right into full-time and noticed that I was going between 65-70. It just shifted in really smooth. I've never done that again and don't recommend it.

I am always more careful now to be under 55 and also back off the gas and then shift it.

Dave

 

[OldBlue]

To bad we can't say that often for 4-Lo (paid for it, might as well use it). Thanks Metro Detroit

I could say the same thing for metro Cleveland............

I pulled onto a gravel access road just to make sure 4LO worked okay when I bought my Libby.

 

[JeepJeepster]

When you pull the handle on the 242 tcase it doesnt actually shift the tcase, it only releases a series of springs that shift the tcase. If the tcase is under torque then it will not shift at all; thus why its a good idea to let off the gas.

the 231 tcase is not like that.

 

[Atrus]

I think backing off the gas is good and I think it might have saved my bacon once.

I was on the interstate and really moving. It started to really pour hard. I just backed off the gas and pulled right into full-time and noticed that I was going between 65-70. It just shifted in really smooth. I've never done that again and don't recommend it.

I am always more careful now to be under 55 and also back off the gas and then shift it.

Dave

I'd tend to think if it's shifted into 4wd at speeds over 55 once or twice, it'd be just fine. I don't think at 57 mph catastropic events will occur I think that's more of a rule of thumb, it's probably easier on the transfer case, that's all. I am thinking of it like a synchro'd transmission - it'll work, but it's harder on the synchro.

That being said, I haven't put it in 4wd over 55, and I won't unless I have no option. I know we can up to 55, but I still try to at a slow speed/stop when possible.