Auto 4wd option for 2500 series?

[KStewart]

Why redwnger? Why do you think they never should have offered auto on 1500 let alone 2500 series?

[redwngr]

Because there are so many that think it is a viscous coupled 'All Wheel Drive' system that is intended to be left on all the time.

[Lingus]

Had my new Duramax in for first service and was talking to the diesel tech(23 years) and said if given a choice, go with floor mounted t-case.

[Nathan79]

Why is that? Is it more reliable? I have the floor shifter in my 2015 Sierra 2500.

[Cosmic Charlie]

(SNIP)

Some people feel that you gain reliability out of the stick -- which is true in a sense because you're mechanically engaging the t-case instead of pushing a button and relying on wiring and a shift motor to do it. Thus, there's less to go wrong.

Unfortunately that's seldom the failure point. More common is a failure to engage the front diff ... which is electronically actuated in both the stick and push-button systems. It could be a sensor failing to signal the actuator or the actuator, itself. You get the idea ... it's a common point of failure for both systems.

[twoheeldrive]

 

These are offered on 2016 2500 pickups.

 

NQG Transfer case, with floor-mounted shifter

NQF Transfer case, electronic shift with rotary dial controls

Manual and electronic, but not auto.

I'm also from the camp that believes they never should have offered auto, even in the 1500's.

 

Auto 4WD is one reason I went with the LT trim (1500 of course). It makes a part time system emulate a full time 4wd. Good for those who don't want to monkey around switching in and out of 4WD.

[GMCHD2015]

Doesn't the 4wheel drive almost lock up when turning sharply in slow tight cornering. Mine does . the auto 4WD in my Burban didn't do that.. That's the problem I have with 4WD High.. What about leaving it on, tire wear ect, during longer trips? 

[gearheadesw]

If your tires aren't slipping in 2 wheel drive, you don't need to lock it in, right? I accedently turned on my 4 wheel drive in the rain at a drive through, drove 5 or so miles in 4 wheel drive, noticed it immediately, did't hurt anything as the wet roads let the tires slip that one little bit. I just don't see a need for it in a nearly 8,000 lbs vehicle.

[ewbldavis]

Am I the only one who stumbles on posts like this, realize it was from 2016, and now I wonder if OP pulled that trigger on an awesome 2500?

 

I had AUTO in my 1500. Don't hardly notice it isn't there. I agree - you don't need it with these. Hardly need 4WD unless it's severe weather or wet grass.