Won’t come out of 4X4

crazy jerry · Nov 30, 2018

maybe it is possible to get the fork and slider bush installed backwards/incorrect. in which case, the gear shop would be to blame. i just assumed it was dummy proof and could only go in one way

mtnrider · Nov 30, 2018

crazy jerry said:
maybe it is possible to get the fork and slider bush installed backwards/incorrect. in which case, the gear shop would be to blame. i just assumed it was dummy proof and could only go in one way

Could be, or could be as simple as a slight misalignment that is putting pressure on the disconnect (bearing not seated properly etc.) and not letting it release all the way. Reversing is taking that pressure off and allowing it to move.

That gear change is no simple swap, lot's of alignments and measurements required to get it right.

.

Ratket · Dec 1, 2018

So what model truck is this? 3/4 ton? 1 ton? What gears did you go to? Are you happy with the gears?

Don_T · Dec 1, 2018

It does seem like the CAD is not letting go when the axle is in a bind otherwise the front wouldn’t pull side to side. When a front tire is off the ground the CAD works fine. I don’t know what to think about it now. When a have a couple of hundred more miles on it I am taking the truck back to have the gear oil changed front and rear. I will talk to them about it.

boblonben · Dec 3, 2018

Yep, sounds like whoever did your gear change id NOT put everything back the way it is supposed to be there. Need to go back to them and have it corrected. And yes the Dealer is going to charge you for anything they do because you nullified the warrantee when you change the gearing and had an outside shop do it. Dealer can't be responsible for non-dealer or factory work and changes. Good luck, hope it is something simple, but probably won't be. Friend of mine did similar thing and eventfully had to go back to the factory set up[ - everything replaced with factory original stuff - because the other shop messed it up badly.

leroys73 · Dec 3, 2018

Was 4x4 Auto an option on 2500s in 2018?

If so I missed an option.

Elkman · Dec 3, 2018

RAMMAR said:
Why? Well that's nearly a brand NEW truck!

Such issues are supposed to be unheard of until years later. It's just ridiculous!

What is stupid is thinking that this is because the truck is new. It is with a new vehicle that I am most likely to experience problems and need to take advantage of the manufacturer's warranty.

My 4WD truck has since it was new had problems at times shifting out of 4WD and I have learned to feel the difference with the steering and then pull over and go into neutral or even into reverse to release the load on the system. My AWD SUV will at times stay in AWD when I want to get it back into 2WD. This is nothing new, I had the same problem with the hub lockers on my 1952, 1954, and 1957 *****'s jeeps and they were much simpler than today's 4WD trucks.

U&A · Dec 3, 2018

leroys73 said:
Was 4x4 Auto an option on 2500s in 2018?

If so I missed an option.

If so they would have to completely change the transfer case to one that has clutches. As far as I know like mine, the 2500s and30500s are STILL direct chain drive transfer cases.

Gosh i hope they did not do this.

Sent from my iPhone using Tapatalk

PaulTGarrett · Dec 3, 2018

OK, I have owned a 4x4 since I was 15... Having to back up to get hubs or transfer cases to release is not uncommon. When you are driving in 4x4, you are putting torque on a lot of moving parts. Just because you hit a button to go out of 4x4 doesn't mean that pent up torque magically disappears. Sometimes it will just disconnect everything, sometimes you need to back up a few feet to release the torque on the parts and let them spin free.

On my '96 Bronco, I have to go in reverse and swing the steering wheel back and forth a couple of times until I hear the "pop" from the locking hubs.

ford40 · Dec 3, 2018

Did they put the right gears in both rears?
If one is off a little it will not come out of 4x4

Don_T · Dec 4, 2018

It does have the same ratio front and rear. I raised the right front wheel off the ground again. When I put it in 4WD the front wheel won’ turn by hand, which is expected. When I put it back in 2WD I still can’t turn the wheel forward. It won’t release even letting go of the wheel, I have to rotate it backward just a fraction. When I do that, I hear a click and then I can rotate the tire forward. So, the CAD is what is not working as it should. I will have the shop pull it apart while I watch to see what is going on. At least I am sure it is the CAD and I know the shop had that apart for the gear change.

PaulTGarrett · Dec 4, 2018

ford40 said:
Did they put the right gears in both rears?
If one is off a little it will not come out of 4x4

If on is a little off and you're driving on the road, you're going to be tearing things up. Not coming out of 4x4 will be the least of your problems. You can kiss u-joints goodbye, slip splines, transfer case chain, front and or rear gear chunks... Pretty much your entire rotating bottom end will be at risk, the weakest link will blow apart first.

And auto manufacturers are not likely to make that mistake... You pull a front and rear axle assembly off the shelf with the same gear ratios... When they give it it's first check out, they will notice -real- quickly if the gears are off. Now if someone did a gear or axle swap, well, you're on your own there...

Deki · Dec 5, 2018

PaulTGarrett said:
OK, I have owned a 4x4 since I was 15... Having to back up to get hubs or transfer cases to release is not uncommon. When you are driving in 4x4, you are putting torque on a lot of moving parts. Just because you hit a button to go out of 4x4 doesn't mean that pent up torque magically disappears. Sometimes it will just disconnect everything, sometimes you need to back up a few feet to release the torque on the parts and let them spin free.

On my '96 Bronco, I have to go in reverse and swing the steering wheel back and forth a couple of times until I hear the "pop" from the locking hubs.

Im sure you've had trucks you've had to do that with, but in the last 15 years of driving modern 4x4s, I've never had to do it.

ronheater70 · Dec 5, 2018

Deki said:
Im sure you've had trucks you've had to do that with, but in the last 15 years of driving modern 4x4s, I've never had to do it.

It depends on if you want instant disengagement, I've had to do it in my 2013 f150 ecoboost, my 2016 2500 6.4 hemi, and also the first time I used my 2018 3500 I had to back up slightly to disengage. For me it was mainly one of thos scenarios where I was turning back onto pavement and I didnt want binding after coming out of a situation where I needed 4x4. I could feel it binding. Now on a snowy road with plenty of runout I can disengage and within a few feet it seems I am back into 2 wheel drive.

slacadjuster · Dec 6, 2018

Don_T said:
We have a lot of snow covered dirt roads so I need to use four wheel drive regularly. I even need four wheel drive to get out of my driveway. The truck has no problem going into 4X4 but when I switch back to two wheel drive the indicator shows the front axle disconnect releases but the transfer case doesn’t let go of the front drive shaft. On a good road the front end will jerk the truck side to side. This keeps happening until I am able to stop and back up a few feet, then it releases. Yesterday I had to drive over three miles with traffic behind me before I could get off the road and put it in reverse to get it to let go. Has anyone else had any trouble like this?

Really?? Wow. Your truck is a 2018. It's still under warranty. I'd be straight to the dealer. Not asking advice from a bunch of guys on a forum. Like really?

mtnrider · Dec 6, 2018

slacadjuster said:
Really?? Wow. Your truck is a 2018. It's still under warranty. I'd be straight to the dealer. Not asking advice from a bunch of guys on a forum. Like really?

Did you not read this thread? He had aftermarket gears installed and that is where the problem is.

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22hemi13 · Dec 6, 2018

mtnrider said:
Did you not read this thread? He had aftermarket gears installed and that is where the problem is.

.

Nah. Nobody reads anymore

ronheater70 · Dec 6, 2018

22hemi13 said:
Nah. Nobody reads anymore

Yea, Like really..L

Won’t come out of 4X4

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