You should never be in 4H or 4L ever on dry pavement you will destroy your transfer case. Also you never never really exceed speeds of 35mph in 4H, some say 55mph but i disagree.

 

Disagree all you want. There is no maximum speed for 4H. The only limiting factor is road conditions. If they require you to use 4wd, then you probably shouldn't be going over 55. The road conditions are what limits your speed, 4H does not.

 

https://www.jeep.com/4x4/faq-and-glossary.html

 

http://www.wranglerforum.com/f202/maximum-speed-in-4h-75579.html

 

Run to the store and buy your man his handle of Titos. The part time 4wd system in the Wrangler is not designed to run all the time like a full time all wheel drive system. If you run into inclimate weather requiring some extra traction, it is fine to use at low speeds until no longer necessary.

 

To be very specific... 4H and 4L are ONLY to be used in low traction. IE snow mud sand dirt.....
Dry or even wet pavement in are to be driven in 2H only no matter the temperature..... guess you both need to buy each other whatever a handle of titos is.

 

To be very specific... 4H and 4L are ONLY to be used in low traction. IE snow mud sand dirt.....
Dry or even wet pavement in are to be driven in 2H only no matter the temperature..... guess you both need to buy each other whatever a handle of titos is.

 

Tito's vodka... 2 handles are on it's way.... Thank you!

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Or if you want to drive in full time 4WD get a 242 transfer case and swap it into your tj




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there are conditions where 4hi at highway speeds is a safe option. sub zero temps on 2 lane highways through the north woods and frozen farms can produce black ice. the roads appear wet but have plenty of traction 99% of the time, but its when the rear tires hit a patch of black ice and send the back of the vehicle sideways that you will wish you had it in 4hi.

I am sure the standard "slow down" response is coming up, but in reality, most modern vehicles are far superior to jeeps for winter highway driving(not 6" snow, but maintained roads that freeze over). with traction control, ABS, and many other advantages, our jeeps are at a major disadvantage. if you cant keep up with traffic safely in 2hi, but you can in 4hi, why wouldnt you use 4hi?

also OP, your husbands 04 auto is a 4 speed

 

I run 4H at all speeds in the winter on any ice or snow covered or even covered in patches roads. I've had the read end kick out on my in 2WD too many times and that results in a total loss of control. It happens in a flash and I guess it's a shock after getting used to front wheel drive cars. On dry roads of course and especially on turns on dry roads it always 2WD. Try making a super sharp turn in 4WD on a dry parking lot and feel the gears lock up. Not good at any speed on dry surfaces.


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If running in 4WD high or low on pavement because of inclement weather you need to really consider stopping distance. In snow in 4 high you can easily get your Jeep up to 70+ MPH. You just can't stop it in a reasonable distance.

 

You don't ever have to pull over to switch between 2H and 4H.... you reach down any time the road conditions change and shift at any speed.... the only caveat is to make sure you aren't spinning the tires while shifting.....
4H on dry pavement is a bad for your jeep... the temperature doesn't matter.....

Of course 1/4 mile here and 1/2 mile there won't immediately destroy anything but driving in 4x4 on dry pavement should be avoided.