caulk04
Senior Member
- Joined
- Mar 24, 2013
- Posts
- 880
- Reaction score
- 1,550
- Ram Year
- 2018
- Engine
- 5.7 Hemi
Engage it at any speed you desire and don't give it a second thought. It's fine, no matter what tcase you have. Don't overthink it.
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90mph, studded Hakkas, 4x4, cruise, ugly Montana I-15 over Monida pass into Idaho mid-January, stellar 6.4 fuel economy, good luck everybody else… I even managed to take a stable picture!
To be fair, the 6.4 didn’t like being shifted into 4 wheel drive above 65mph.
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Agree, have shifted at 70 on many occasions with zero issues. 2017 Ram 1500 5.7 no auto 4x4.I've shifted my 44-45 into 4 hi at over 70 mph no problem.
The key is that all wheels are spinning at the same speed, after that it really doesn't matter what speed that is.
It doesn't like going into 4hi when the front and rear wheels are at different speeds though - like if the front was hydroplaning or similar situation.
I prefer to shift in and out at speed on patchy roads vs. leaving it in 4hi and forgetting that I am in 4hi and driving on dry roads.
It seems that you can slam it into 4-wheel high at 100 mph but no one is willing to say it out loud or has tried.
Often times when traveling on the interstates there are just patches of snow here and there, usually where the wind has blown it across the road. The rest of the road is absolutely dry but there are these patches.Unless your off-roading the truck, do you need 4X4 suddenly when going 70mph or faster on public roads? (Even +55 mph for that matter). If the road conditions are that degraded should one really be going that fast. I could give a crap what happens to someone going that fast but it's the other people around them that are put in danger.
Unless your off-roading the truck, do you need 4X4 suddenly when going 70mph or faster on public roads? (Even +55 mph for that matter). If the road conditions are that degraded should one really be going that fast. I could give a crap what happens to someone going that fast but it's the other people around them that are put in danger.
This is the exact reason I switch mine at higher speeds. Dry or slightly wet road and then some snow. I'll let off gas and hit 4 hi and wait for it to engage and slow down to a more appropriate speed depending on road condition.Often times when traveling on the interstates there are just patches of snow here and there, usually where the wind has blown it across the road. The rest of the road is absolutely dry but there are these patches.
With 4 Auto you could just put it in that and stay in it, but with the 44-45 that isn't an option and driving in 4 Hi on dry pavement is a no no.