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It’s exactly how it works, there is no center differential in the 4a T-case. Ball cam and clutch packs can lock and unlock front as computer see’s fit.
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4:20 in the video describes 4A differs from 4Hi and how 4A simultaneously provides torque to front but also allows for slip to prevent binding
it’s very clearly not an identical setup to 4Hi or “Auto 4Hi”.
actually an easy mistake to make if new to this kind of 4x4 and OP has a point that sales people should probably point that out. Yes, read the manual, but nobody is gonna do that before driving off the lot and maybe getting curious about the buttons and all that. Or maybe a warning should show up explaining this with an option to "don't show this warning again".
Somebody new to this kind of vehicle might even come from some other AWD where they never had to think about it.
Glad nothing broke, glad I read about this on the JL forum while making my mind up on which Wrangler to buy (but then the Bronco was revealed....) so I knew.
As for how the 4A works, no idea, just know it works with no binding when I tried it, though I'd only turn it on when it's slippery. Which is rare here.
Somebody new to this kind of vehicle might even come from some other AWD where they never had to think about it.
Glad nothing broke, glad I read about this on the JL forum while making my mind up on which Wrangler to buy (but then the Bronco was revealed....) so I knew.
As for how the 4A works, no idea, just know it works with no binding when I tried it, though I'd only turn it on when it's slippery. Which is rare here.
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Thank goodness he didn’t get front and rear lockers.
Big Bend Bronco comes standard with part-time 4wd. Read the owners manual to understand what that means specifically but in general, that means do not engage unless on low traction surfaces. Driven on any other type of surface increases wear and risks damage.
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You just completely contradicted yourself. I have the case in my vehicle. I have driven it extensively, the front and rear wheels can be driven at different speeds. That is a differential.
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4A works in Sport mode, so it’s designed for pavement.
This is true4A works in Sport mode, so it’s designed for pavement.
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Since a lot of places started using brine/salt in their lots these days. You could sit at a gas station, grocery store parking lot here and watch all the part time 4x4 trucks and SUVs going full lock, bucking, jumping and listening to their studded snow tires scratch on the wet pavement as their drivers go on making their turn or pulling into/out of a parking space. Since the roads aren't treated but with a little gravel people just forget or don't know to shift to 2wd once they get in the parking lot.
It's remarkable how much stress they can take without just blowing up.
It's remarkable how much stress they can take without just blowing up.
If you live in an area with snow/icy conditions I’d also find an empty parking lot and practice in 4WD. The vehicle will behave in a counterintuitive way at times. Example, there are times when staying on the gas or slowly decelerating is much safer than braking. Just a thought so you're not surprised on the road one day.
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Deleted member 32220
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The first post was meant for the OP, the second one I stand by.
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I was in my bronco testing it out tonight on snow. Then the power delivery gauge must be lying. Like I said try it yourself watch the gauge when your on the throttle.
Considering you have never owned a vehicle with a 4x4 system like this, was it actually too much to expect you to read the manual?
I just don't get where people's heads are at. They buy the second most expensive thing they are ever likely to buy, and just completely skip learning anything about it? How much time does it take to go through an owners manual? My Gladiator's manual took me maybe an hour. My Bronco's manual should take about the same time when I get mine.
I don't think you've offended the 4wd Gods. I think you've offended the "Read the Manual" Gods
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OP don’t feel too bad. Just about everyone (even the four wheel gods!) go thru a learning curve when starting out on a vehicle like the Bronco. A few break something, but most, like you, figure it all out. I learned on an old IH Scout. Lucky for me, it was sturdily built like an old tractor (duh) and my lessons didn’t involve breaking anything. If you want to deep dive into how things work, here’s a great Jalopnik artIcle that i’ve seen posted on here a few times. Have fun!
https://jalopnik.com/how-all-wheel-drive-works-a-ridiculously-detailed-tech-1846233533
https://jalopnik.com/how-all-wheel-drive-works-a-ridiculously-detailed-tech-1846233533
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https://www.truckcamperadventure.com/ford-raptor-features-new-cutting-edge-transfer-case/
“Ford engineers sought to enhance the daily driving experience of Raptor while preserving its impressive off-road capabilities. With the clutch-based feature of the transfer case, drivers can travel on-road using the four-wheel drive auto setting, which delivers the benefit of four-wheel drive without the repercussions of component damage or driveline binding—something that can occur when drivers try to use mechanically locked systems on high-traction surfaces like pavement.”
Similar case to the 4A in the Bronco.
“Ford engineers sought to enhance the daily driving experience of Raptor while preserving its impressive off-road capabilities. With the clutch-based feature of the transfer case, drivers can travel on-road using the four-wheel drive auto setting, which delivers the benefit of four-wheel drive without the repercussions of component damage or driveline binding—something that can occur when drivers try to use mechanically locked systems on high-traction surfaces like pavement.”
Similar case to the 4A in the Bronco.
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