2007 F350 Clunk on 4x4 Engage!!?? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 10-13-2009, 07:25 PM Thread Starter
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2007 F350 Clunk on 4x4 Engage!!??

Hi guys a quick search returned nothing on newer trucks.. 2007 F350 6.0 H-D Edition- 81,000k. I bought the truck at 75,000k and I know a little about its history but when I switch to 4x4 high moving around 30-50k I get a harsh clunk like can feel it in my feet..any ideas or anyone eles have this problem I have not poked around under there yet thought I would ask here first to get a direction to look in!?
Thanks in advance.
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post #2 of 2 Old 10-13-2009, 07:35 PM
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30-50k??? Dang what are you hauling?? yea that switch is only a vacuum line that temporarily locks the hubs. For tough situations it is encouraged to manually lock the hubs. I too have the clunk, but only when i go from 4 high to 4 low.

2002 Lariat 7.3 4x4-- 250,000 miles

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