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 > 2016 Ram 3500 not disengaging 4 wheel drive low gear

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covered wagon

USA

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Posted: 01/13/18 03:12pm Link  |  Quote  |  Print  |  Notify Moderator

On mine if gear bind happened going forward I roll backward just a wee bit to release if binding happened while rolling in reverse I have to go forward just a little to release. But you should try disengaging with the trans in neutral first. Your not supposed to run 4wd on hard pavement because you can cause damage by going beyond just a simple gear bind.

Ramp Digger

Hiawassee Ga

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Posted: 01/13/18 03:53pm Link  |  Quote  |  Print  |  Notify Moderator

towpro wrote:

covered wagon wrote:

Binding has happened to me on every 4wd that I've owned. It normal till you drive back or forth to unbind. Binding happens because the front is designed to spin a little fast than the rear differential. This affords better control in icy conditions and are all supposed to be this way.


I think you will find exactly the same ratio front and rear in any modern 4x4 truck.
But I have seen an old electric company pole truck with different ratio in front so it could steer in mud
Now that I think about it I had a 1986 F-250 4x4 that had a 3.55 rear axle ratio and a 3.54 in the front. It was that way from the factory as I bought it new.


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covered wagon

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Posted: 01/13/18 07:14pm Link  |  Quote  |  Print  |  Notify Moderator

Ramp Digger wrote:

towpro wrote:

covered wagon wrote:

Binding has happened to me on every 4wd that I've owned. It normal till you drive back or forth to unbind. Binding happens because the front is designed to spin a little fast than the rear differential. This affords better control in icy conditions and are all supposed to be this way.


I think you will find exactly the same ratio front and rear in any modern 4x4 truck.
But I have seen an old electric company pole truck with different ratio in front so it could steer in mud
Now that I think about it I had a 1986 F-250 4x4 that had a 3.55 rear axle ratio and a 3.54 in the front. It was that way from the factory as I bought it new.


That is a good truck back then. I think they might do the faster front spin with the transfer case now a days, but I'd have to talk to my 4wd shop to be sure. If the rear spun faster you would have a fishtail effect in icy conditions. So to help with that they make the front spin faster, just by a little

Reality Check

North Bend

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Posted: 01/14/18 08:08pm Link  |  Quote  |  Print  |  Notify Moderator

bobbolotune wrote:

old guy wrote:

most say to back up at least 6 ft to make it easier to get out of 4 low and into 2h

I realize after reading through all of the responses again that I am still unclear on one point. Should I do this back up before or after turning the knob inside the cab from 4WD low to 2WD?


What's the manual say? It's easy for some of us to know who actually has knowledge and who's giving advice based on their cousins here say, but if it isn't so clear, you might be best to just go read the instructions from the source.


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bobbolotune

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Posted: 01/14/18 10:58pm Link  |  Quote  |  Print  |  Notify Moderator

Reality Check wrote:

What's the manual say? It's easy for some of us to know who actually has knowledge and who's giving advice based on their cousins here say, but if it isn't so clear, you might be best to just go read the instructions from the source.

The RAM manual talks about switching into 4WD but says nothing about switching out. It doesn't talk about binding and releasing binding when switching. As far as I can find, and I did look carefully.


Lance 850 truck camper
2016 Ram 3500 regular cab long bed 4x4 DRW 6.4L HEMI gas

Reality Check

North Bend

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Posted: 01/14/18 11:19pm Link  |  Quote  |  Print  |  Notify Moderator

bobbolotune wrote:

Reality Check wrote:

What's the manual say? It's easy for some of us to know who actually has knowledge and who's giving advice based on their cousins here say, but if it isn't so clear, you might be best to just go read the instructions from the source.

The RAM manual talks about switching into 4WD but says nothing about switching out. It doesn't talk about binding and releasing binding when switching. As far as I can find, and I did look carefully.


Shame on them and good on you for looking. As others have stated and you have picked up on, the binding is normal. It's a finesse thing to get it out of 4L, but not a big nor difficult thing to learn. The backing up is related to unlocking the automatic hubs, not necessarily releasing the pressure in the transfer case, but the backing up a bit could help in that regard.

I think others have covered it, but when switching from 4L back, the vehicle should not be moving (Neutral or park). Most that I know/drive with, use Neutral, as often during this dance, just releasing the brake a bit and allowing inches of movement while in Neutral, is enough to release the bind (can't do that very well in Park). Just seems to be a common solution that is easy to use.

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