Max speed in 4x4 lock

hemi1282 · Feb 23, 2015

Whats up guys got a question, southern Arkansas got a lil bit of ice today 1st time in about two years so there were some times I had to put my truck in four wheel drive, didn't drive it to fast but was just wondering how fast can these trucks do in 4x4 with out screwing **** up and another thing I was playing around at one point and put the truck in 4x4 low and it sure is a hard shift goin in and out of low, is this normal?

sucka dirty

Ratket · Feb 24, 2015

low should only be engaged while stopped. as far as 4x4 hi.. I have always ran my vehicles as fast as I felt comfortable with the given weather conditions. I have set my cruise @ 80 in high before..it was 2 am .. 4 lanes.. about 4 degress.. and 2 feet of light fluffy powder and not a sole in sight for the next 50 miles. some people wi say that anything over 35 or 55 in 4 high is bad for the vehicle or is just not safe. will hauling ass in 4 high hurt your truck, nope. but remember this... once u lose control in a 4x4 or all wheel drive vehicle.. getting it to come back is that much harder.

mtu1293 · Feb 24, 2015

Pretty much what he said, the only thing I've ever seen in regards to 4x4 High, was to shift the tcase under 55mph, and not under throttle. Many a times I've cruised the roads around here, when snowy at 60mph in 4H.

preachp · Feb 24, 2015

Hi Hemi1282,

+1 to shift into 4 lock (4hi for the 4auto trucks) under 55 mph and while not under hard acceleration.
4LO is engage at less than 3 mph and with transmission in neutral.
Be careful about using either on dry blacktop if it starts bucking take it out of 4WD. There is no slip in these trucks when they are in 4WD and the bucking is the two axles trying to rotate at different speeds.
Enjoy,

preachp

hemi1282 · Feb 24, 2015

I always come to complete stop and put n neutral when changin its just a pet peeve I have, I've never went fast n 4x4 when I go muddin I normally creep and crawl so wasnt sure on speeds so thanks guys, I'm lovin this ice though wish we would get more, I feel like a 10year old at christmas

loveracing1988 · Feb 24, 2015

Like said above as fast as you want in 4 hi or 4 lock (same thing). Mine is different because I have the manual shift transfer case, but to go in and out of 4 low i need to move just a little, so I park on a hill and shift into neutral in both the transmission and transfer case and then let my foot off the brake just a little bit and it goes right in. Pretty much the same thing coming out. I'm sure the internals are the same for the two transfer cases so try moving just a little bit) under 3 mph or it won't even attempt the shift) and it should go right in.

skHemi64 · Feb 25, 2015

I agree with loveracing1988. Drive as fast as you want in 4 HI. 1/4 miler diesel trucks run in 4 HI all the way to the finish line. 4 LO you aren't going to be going very fast anyway.

That said, why run 80 mph in 4x4 on the highway? I'll click it in and out based on the road conditions, but I'll be that guy just minding my own at no more than 55 mpg in 4x4 - but that is just MY preference. Plus 55 mph is about as fast I want to go when I hit the ditch!

Max speed in 4x4 lock

hemi1282

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