2011 Hubs - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 06-23-2010, 04:55 PM Thread Starter
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2011 Hubs

Can someone explain to me how the front hubs work. I've never had manual hubs before, but the 2011s say auto or lock. What's the difference? I put it in 4wd with them in auto and it felt like it kicked in.
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post #2 of 7 Old 06-23-2010, 05:35 PM
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You have both options at your disposal. When the hubs are turned in the auto direction, the hubs will be locked when you engage 4x4, vacuum will lock the hubs so you do not have to get out and lock them. This system isn't the most reliable. That is where you have the option of manually locking them by switching the hubs to lock. This system setup allows you to not have to have everything constantly turning while you are driving down the road in 2wd.

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post #3 of 7 Old 06-23-2010, 05:40 PM Thread Starter
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So why would you ever have to use the manual option?
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post #4 of 7 Old 06-23-2010, 06:18 PM
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Originally Posted by 08 Black Cummins View Post
So why would you ever have to use the manual option?
When and if the auto fails...

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post #5 of 7 Old 06-23-2010, 07:20 PM
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Originally Posted by FX4 F2-Fifty View Post
When and if the auto fails...
I have used the 4 wheel auto extensively on an 07, 09, and not so much on the 2011. In earlier models, no problems, when rolling at 50-70+ mph heading into heavy rain, running over snow, on the fly 4x4 worked great. Manual would be used in off road applications, or when you plowing snow, etc. I have never used the 'lock' other than when playing.

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post #6 of 7 Old 06-23-2010, 10:16 PM
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I was under the impression that the auto feature was only operational (at the very least, reliably operational) in 4hi at speeds under 20mph. I only ever use it to jump into traffic with wet roads, or where i have a slight spin that I know doesn't require a lot of power or manipulation to get traction. I like knowing them things are locked in.

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post #7 of 7 Old 06-24-2010, 08:01 AM
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Quote:
Originally Posted by EODguyJake View Post
I was under the impression that the auto feature was only operational (at the very least, reliably operational) in 4hi at speeds under 20mph. I only ever use it to jump into traffic with wet roads, or where i have a slight spin that I know doesn't require a lot of power or manipulation to get traction. I like knowing them things are locked in.
you can engage the autolocking hubs up to 55 miles per hour, i've gone 90 with them engaged before and it did fine
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