I think I did? :P

 

Just a mind test here IRONHEAD, lets just hypothetically say, if you were to go down one size on the front tire size compared against a taller rear tire size on a 4x4, the rearend will try to push (or try to overun while in 4wd) the front end because of the rear tire ratio effect would be doing more work ratio wise. (and not to mention, it would bind up badly...and THAT`S my point) If you up the height of the front tires, (by adding more air to the front tires, it will make the front tires stand a little bit taller instead of flatter or as even as the rear tire height) it will act more like a front wheel drive system, it will help pull the truck instead of pushing it down the road because the front tire height will be a fraction taller in circumfrence than the rear. So ther for, less force on the drivetrain componets. Any real 4x4 guy would know this is fact. It works, trust me. You will notice a difference when you have just the right amount of air pressure difference between the front and rear tires. The 4x4 will drive a heck of alot easier. So, if you`re on dry pavement for short distances, you be less likely to tear anything up as easy.

 

No you will still get bind, just in the opposite direction (that is you will put a net counterclockwise load on the transfer case instead of a net clockwise load). The only reason that running higher pressure in the front might help is that because due to the front weight bias of a pickup the front tires are squashed and have a lower effective radius.

 

I build and offroad real 4x4's and that is the strangest suggestion I've heard in a log time.

My .02 - part time systems should never - ever be engauged on dry pavement. It puts extra strain on the tires, driveshafts, ujoints and transfercase chain or gears. Good way to tear stuff up.

 

Pretty much what i said in my earlier thread

 

I have owned 4x4`s all my life, i`ve never torn one up as of yet in over 40yrs running them on dry pavement. I`ve always ran the tire pressure higher in the front, never tore one up following the "old timer`s" suggestion from 40yrs ago. If someone posts or adds a thread to a post, i think some of you guys take it a little to the extreme by thinking about it to hard. If people are tearing their truck up that easy, then i would say its from neglect and abuse, or worse yet, just not informed how to balance out a 4x4 vehicle with air pressure`s within the front and back tires. To each their own, you do it your way, i`ll do it mine. I was only throwing out an idea for people to try. If i`m wrong for how i set my 4x4 up to use it, then how did i ever go 40yrs and not tear ANY of them up.

 

For those of us without 4x4 AUTO and just Hi/Low, I use the 4x4 Hi in any situation when I think the tires will slip in deep snow, on ice, on the highway when taking a shoulder or not plowed and have never had an issue. I know what the manual says and think it's correct. When driving on plowed, salted roads, there's no need for 4x4 and it kills your fuel mileage anyway. I also run a few pounds more in the front tires of both my trucks and have nice even tire wear. My advice would be use it when you think you should but remember, it doesn't help you stop, only good tires will.

 

Let the bickering Begin! I don't like arguing with people but I notice that it's the guys that rarely use their 4 wheel drive seem to know the most about it.
I've grown up on icy Canadian roads and brutal winters, I've logged litterally 1000s of Kms on dry pavement in 4x4lock. I have many friends/family that basically use 4x4 from November to march regardless of road conditions. My wife drives the 2010 ram and she uses 4lock on almost all road conditions during the winter months, that truck has 58000kms and works like new.
My 2004 has 210,000 Kms and 8 winters use of full time 4x4 use at high speeds.
At work we use fords and chevs and all employees are told to use 4 wheel drive during the winter if there is any chance at all of snow ice or slush.
Now with my first hand experience of running vehicles this way I've never heard of any part failure related to the 4wheel drive system.
Does extra use contibute additional wear? Absolutely, however several of the work trucks are well over 300,000kms without failure so it must minimal wear taking place.
To the OP this is the way I was taught and it's yet to cause me any problems. But it has kept me from losing control or sliding off the road when I wasnt expecting it.
Best of luck to you whatever you do.

 

Case in point, my 2500 has recommended inflation of 60psi front / 45psi rear unloaded and 60psi front / 70psi rear with max load.

 

THANK YOU...!

And by doing so,
it keeps the overall ratio`s between the front and the rear ALOT more even so as not to wear or bind as agressively.