4 High Issue
Hotshot
Joined: Oct 2015
Posts: 19,687
Likes: 12,812
From: Wyoming
My '07 Titan had no hubs to lock/unlock. There were always locked. I suspect that my Titan could have had .5 to 1.0 better MPG if I had hubs that could unlock. On the plus side, I didn't have to worry about wheel caps fitting.
Laughing Gas
Joined: Jul 2012
Posts: 1,210
Likes: 20
From: prince george, bc canada
Its great that some of you don't need to use 4 wheel drive on the highway. I live in a place where snow/ice covered highways are normal for months at a time! I also have a job that has me travelling hundreds of km a week on these highways. 4 wheel drive is an absolute necessity. I am comfortable with my own driving in 2 wheel drive on these roads and where 4by really helps is the sudden swerving you have to do when out of control vehicles come hurling at you, out of control, at highway speeds!! And this happens often!
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 738
From: Isanti, MN
Its great that some of you don't need to use 4 wheel drive on the highway. I live in a place where snow/ice covered highways are normal for months at a time! I also have a job that has me travelling hundreds of km a week on these highways. 4 wheel drive is an absolute necessity. I am comfortable with my own driving in 2 wheel drive on these roads and where 4by really helps is the sudden swerving you have to do when out of control vehicles come hurling at you, out of control, at highway speeds!! And this happens often!
Posting Guru
Joined: Apr 2017
Posts: 1,655
Likes: 21
From: Western MA
Our SUV and previous SUV have automatic full time AWD so it’s dummy proof and convenient
Thread Starter
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Freshman User
Joined: Mar 2017
Posts: 37
Likes: 1
Devildog95 that’s the same thing I’m hearing as well. Please let me know if the mechanic can figure it out. Thanks!
Senior User
Joined: Dec 2017
Posts: 282
Likes: 2
Doesn't matter how you spell it when I have to take a shovel to dig out a truck after telling the guy to make sure he locks the hubs in before he leaves the shop...
I grew up with real 4wd so not a big deal to me but the general population only knows how to turn a **** and make it go...
Having said that I will gladly take the electric shift as then I don't have to worry about my kids kicking the 4wd shifter.
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Elder User
Joined: Apr 2017
Posts: 523
Likes: 0
From: Eagan, MN
I agree, and I am in MN too. If I think I may lose traction, I have it in 4WD on the interstate too. But I am not going 60 MPH.
Junior User
Joined: Jul 2017
Posts: 50
Likes: 1
Rode with Service Mgr
Doesn't matter how you spell it when I have to take a shovel to dig out a truck after telling the guy to make sure he locks the hubs in before he leaves the shop...
I grew up with real 4wd so not a big deal to me but the general population only knows how to turn a **** and make it go...
Having said that I will gladly take the electric shift as then I don't have to worry about my kids kicking the 4wd shifter.
I grew up with real 4wd so not a big deal to me but the general population only knows how to turn a **** and make it go...
Having said that I will gladly take the electric shift as then I don't have to worry about my kids kicking the 4wd shifter.
Hotshot
Joined: Apr 2013
Posts: 10,118
Likes: 650
From: NH
Many misinformed people here.
There is zero harm in engaging 4H at any speed so long as you are not spinning your rear wheels. There is no speed limit to how fast you can go in 4x4. The transfer case surely doesn’t care.
2017 trucks use a new type of transfer case which does have a clutch to smooth engagement and disengagement. When the hubs engage and spin up, there can be a clunk. Nothing is harmed. The clutch in the transfer case actually allows more leeway for the driver to be on the gas during engagement.
I frequently click in and out of 4x4 at interstate speeds if conditions warrant.
There is zero harm in engaging 4H at any speed so long as you are not spinning your rear wheels. There is no speed limit to how fast you can go in 4x4. The transfer case surely doesn’t care.
2017 trucks use a new type of transfer case which does have a clutch to smooth engagement and disengagement. When the hubs engage and spin up, there can be a clunk. Nothing is harmed. The clutch in the transfer case actually allows more leeway for the driver to be on the gas during engagement.
I frequently click in and out of 4x4 at interstate speeds if conditions warrant.
Hotshot
Joined: Apr 2013
Posts: 10,118
Likes: 650
From: NH
Probably the spinning of drivetrain components you normally don't hear because they normally aren't moving. I wouldn't call mine a whistle, but rather a slight whine.